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Racer on Rails at Portland: Heat, Heart, PRO3 Lessons, and Runoffs Testing at The Dash for Kids

Ron Tanumera driving through the PIR festival chicane in the Racer on Rails BMW PRO3 race car.

Portland International Raceway has a way of making club racing feel bigger than the lap chart.

Maybe it is the setting. PIR sits inside Delta Park in North Portland, tucked into one of the more unique pieces of motorsport geography in the country. Long before it became a racetrack, the land was Vanport, a wartime city built to house Kaiser shipyard workers during World War II. At its peak, Vanport was home to nearly 40,000 people and was the second-largest city in Oregon. In 1948, the city was destroyed by flooding. Years later, the remaining street grid helped form the bones of what would eventually become Portland International Raceway, with the first Rose Cup race held in 1961.

That history matters. PIR is not just another track carved into an empty field. It is a public park, a community gathering place, and one of the great regional motorsports homes in the Pacific Northwest. It is flat, fast in places, technical in others, and just awkward enough to reward drivers who can get the car rotated, settled, and back to power without wasting motion.

For this weekend, Racer on Rails returned to PIR with Cascade Sports Car Club for an ICSCC Conference race weekend, The Dash for Kids XLII.

For anyone newer to Northwest club racing, ICSCC, often simply called “Conference,” is the International Conference of Sports Car Clubs. Founded in 1957, it is an association of independent sports car clubs across Oregon, Washington, and British Columbia, and it remains one of the core regional racing structures in the Pacific Northwest. One of the things that makes Conference special is that it is very much club-powered. Drivers are represented through their member clubs, and those clubs participate in the governance of the series. It creates a regional racing culture that feels practical, involved, and very connected to the people actually building, towing, fixing, flagging, and racing the cars.

Cascade Sports Car Club is one of those foundational clubs. Cascade began in 1953 as the 4-Cylinder Sports Car Club of Oregon, changed its name to Cascade in 1956, and has grown into a club with a year-round schedule that includes track days, driver education, road racing, rallies, and volunteer support for major events at PIR.

The Dash for Kids is one of Cascade’s signature weekends. It blends Conference championship road racing with a community charity event, including race car rides, paddock access, family activities, and fundraising for local organizations. The 2026 event marked the 42nd running of The Dash, with race car rides offered during lunch on Saturday and Sunday for donations to the charity.

That meant this weekend had two lanes of purpose for us.

One lane was competition and development.

The other was community.

And, by the end of the weekend, we got a full serving of both.

The Racer on Rails Plan

Originally, we expected to have three drivers on the weekend but one driver had to bow out last minute which left us with two primary competition programs. The silver lining was that open third slot gave us an opportunity to bring out the Racer on Rails #136 Spec E46 race car to give some lunch time charity rides! Can’t complain about that!

For Ron, the goal was not results-first. The goal was development-first.

Ron’s larger arc this season has been about building the kind of adaptable driving skill that transfers across platforms. He has driven Spec E46, the Porsche Cayman GT4, Spec Racer Ford 3, and now PRO3. The long-term objective is not simply to be fast in one car. It is to become the kind of driver who could step into an endurance team environment and be trusted: aware, consistent, confident, mechanically sympathetic, and able to keep the car in a competitive window.

That is a very different target than chasing a single lap time.

PRO3 is an excellent tool for that kind of work.

The class began in the Pacific Northwest in 2002, growing out of a group of BMW E30 racers and friends connected to the Puget Sound BMW CCA scene. It has since become one of the strongest amateur racing classes in ICSCC, the PNW, West Coast and if the group raced nationally, it would be one of the largest racing classes at any weekend, with large grids and deep competition.

It also has a very specific personality. People often casually describe PRO3 as a spec class, and while the rules are restrictive, it is better understood as a tightly controlled, Improved Touring-based formula. The cars are BMW E30 325i chassis with stock M20B25 engines, controlled tires, and rules designed to keep the emphasis closer to the driver ability end of the spectrum rather than spending or exotic development.

More importantly, they are analog. No ABS. No traction control. No stability control. Many cars run without power steering. The braking window is narrow, the tires are easy to over-ask, and the car will absolutely tell on you if your inputs are sloppy. That makes PRO3 one of the best classrooms in Northwest racing.

John Hoolihan and Ron Tanemura demonstrating just how analog the PRO3 race cars - locking up going into T1 at PIR.
John Hoolihan and Ron Tanumera demonstrating just how analog the PRO3 race cars – locking up going into T1 at PIR.
(C) 2025 Doug Berger | DBPics

It is also where Gama started racing, and that matters. We have seen it again and again: drivers who can run at the front in PRO3 tend to carry that skill into almost anything else they drive. It teaches commitment, car control, racecraft, mechanical sympathy, and humility. The car is not going to save you. You have to do the work.

For Gama and the 370Z, the weekend had a different purpose. This was a test event for the SCCA Runoffs at Road America later in the year. On paper, PIR and Road America do not look like twins. Road America is longer, faster, and more dramatic, with far more elevation change. But from a setup and systems-testing perspective, PIR still gives us useful information.

Gama Aguilar bombing through the PIR Festival Chicane in his 2011 Nissan 370Z Nismo road race car, running in SCCA Touring 3 Specification.
Gama Aguilar bombing through the PIR Festival Chicane in his 2011 Nissan 370Z Nismo road race car, running in SCCA Touring 3 Specification.
(C) 2025 Doug Berger | DBPics

PIR’s flatness, surface, braking zones, and mechanical-grip demands make it one of the best regional proxies available to us. It would not answer every Road America question, but it could answer some important ones: Do we have real pace? Can the car stay cool? Can we run hard in race conditions? Can we trust the package over a longer stint?

With hot weather forecast in the mid to high 90’s Fahrenheit across the weekend, those questions became even more relevant.

Friday: Promise for the Z, Trouble for the PRO3

Friday test day split into two very different stories.

For the 370Z, the car felt good right away. Track space was limited, and with traffic it was difficult to build a truly representative lap, but the underlying feeling was positive. The plan became straightforward: use Friday to get the car into its window, then put on a new sticker tire set Saturday morning and take two shots at qualifying.

The first shot would come in the morning mini-enduro qualifying session.

The second shot would come in Group 4, where Gama had also entered in ST. Group 4 had faster big-bore traffic, but fewer cars overall. That gave us a better chance of finding the clean air needed to see what the car could really do.

Ron’s Friday was much less tidy.

The PRO3 car developed shifter issues, possibly tied to a deeper transmission issue (Note – We would later confirm the transmission itself was healthy; the shifter issue was the real culprit). Rather than force the car through a compromised test day and risk making things worse, the team made the right call: park it early, diagnose what we had, and prepare to get Ron back on track Saturday.

That kicked off one of those classic club-racing logistics adventures.

Mitchell drove back up to Seattle on Friday evening, grabbed the spare transmission from the shop, and headed back down early Saturday morning. By 7:00 a.m., the team was back under the lift, working to get the transmission into the car and get Ron back in the fight.

No velvet rope. No magic wand. Just people, tools, caffeine, and the quiet soundtrack of “well, this is what racing asks today.”

Saturday Morning: Thrash, Traffic, and One Clean Lap

The team got the PRO3 car back together Saturday morning, but the shifter assembly continued to fight back. It had come loose and was operating strangely enough that even after the transmission swap, there was still work to do.

The good news: the team got it functioning.

The bad news: Ron missed qualifying for both Saturday races.

That meant he would start from the back.

For a driver-development weekend, that is not always a bad thing. It is not convenient. It is not ideal. It definitely makes the day louder. But it gives a driver exactly the kind of work that cannot be simulated cleanly: traffic, starts, passes, imperfect rhythm, and the need to adapt to the car you have rather than the car you wish you had.

Meanwhile, Gama rolled into Saturday morning qualifying on new tires hoping to get a clean representative lap in the 370Z.

That part did not go to plan.

By the time we got to pre-grid, there were already more than 25 cars lined up. The decision was to go to the back and create space, but with 50-plus cars on track, including a large Spec Miata field, there simply was not enough clear racetrack to put the lap together. Then the session ended early due to an incident.

So we waited for Group 4.

This time, the track-space plan finally worked. Fewer cars. Faster traffic. A better rhythm. And then, finally:

1:23.592.

https://www.instagram.com/reel/DZnKfwEgRnP

That lap put Gama P9 overall in Group 4 qualifying and P1 in ST. More importantly, it gave us the first clean signal that the 370Z had real pace in the package.

Was it perfect? No.

There was still time left on the table. Based on feel, predictive timing, and the work Gama and Tyler had done around the car’s potential, the estimate was that a 1:23.2 was likely available in that session. With a cleaner sticker-tire run and a true max-effort qualifying format, the team believes a 1:23.0, and possibly even a 1:22.8, was realistic, even in with temperatures already at 80F by 9am.

But for the goal of the weekend, the message was clear: the car had the nationally competitive pace we expected.

Now we needed to find out if it could survive the heat.

Ron Starts at the Back and Gets to Work

Ron’s Saturday was the kind of day that can turn into a throwaway if the driver lets it.

He did not.

After missing qualifying, he started from the back in Group 2 and worked his way forward to P10 in a 22-car PRO3 field, with a best lap of 1:31.721.

Then he backed it up in Group 5, finishing P5 in CT4 with a best lap of 1:31.210.

That was a big deal.

Not because P10 or P5 are magic numbers by themselves, but because of how he got there. Ron had to adapt after a messy mechanical start to the weekend. He had to race from the back. He had to get close to other cars, work through battles, and keep the car moving forward.

Ron making moves early in the Group 1 PRO3 race, starting from the back.
Ron making moves early in the Group 1 PRO3 race, starting from the back. (C) 2025 Doug Berger | DBPics

This is exactly the kind of growth we wanted from PRO3.

In clean air, drivers can work on lap time. In traffic, they have to work on craft. Portland forced Ron into the craft side of the ledger, and by the end of Saturday he was not just circulating. He was racing people. He was putting the car in places that mattered. He was becoming more comfortable with the car moving around underneath him.

That is the good stuff.

Not shiny, not always obvious from the outside, but very real.

The 370Z Race: Pace Confirmed, Cooling Not Yet Solved

Saturday afternoon, the 370Z lined up for the Group 4 race.

The goal was not necessarily to chase the race result. The goal was to run the car hard in heat and see what we had from a reliability and cooling standpoint.

The afternoon temperatures were already brutal, climbing from around 90 degrees toward the mid-90s as the race went on. That was useful. We are unlikely to see those exact conditions at Road America in early October, but that was the point. If the car could stay cool at full tilt in this environment, we would have a lot more confidence heading into the Runoffs.

Unfortunately, the race showed us that there is still work to do.

Early on, the car was running normally in clean air. Then, after a full course yellow around six or seven laps in, water temperature warnings started to appear. The car was not done, but it was no longer free to race at full attack. Gama had to manage it with lift-and-coast into braking zones, short-shifting around 7,000 rpm, and rolling back into throttle more gently than normal.

That kept the car alive and allowed us to finish, winning ST with a best race lap of 1:24.826.

But the result was not the lesson.

The lesson was that if we had needed to battle hard, defend, attack, or run nose-to-tail for position, we would have been compromised. The pace is there. The car is closer. But the cooling system still needs more margin before Road America.

Gama Aguilar bombing through T1 at Portland International Raceway in his Nissan 370Z Nismo.
Gama Aguilar bombing through T1 at Portland International Raceways in his Nissan 370Z Nismo. (C) 2025 Doug Berger | DBPics

That was valuable information.

We had also entered the one-hour mini enduro, which would have been the closest proxy for the 45-minute Runoffs race distance. But with the car already showing heat-management limits, and with the afternoon only getting hotter, there was no reason to keep poking the dragon with a torque wrench.

We had learned what we needed to learn.

The team made the call to park the car for the rest of the weekend. The official results show the 370Z as a DNS for the mini enduro, which was exactly the right decision.

Sometimes the smartest lap is the one you do not run.

Sunday Morning: Ron Finds Another Gear

Sunday morning was Ron’s chance to reset.

The car was back. The conditions were better than they would be later in the day. The goal was to make the most of the cooler track before the heat came in.

Ron got after it.

In Group 2 qualifying, he dropped into the 1:30s with a 1:30.946, good for P11 in PRO3.

Then, in Group 5 qualifying, he put together a 1:30.554 and qualified P1 in CT4.

Pole position. 💪🏾

The first pole position of Ron’s driving career. Let’s go!!!

Ron getting after it through the festival chicane.
Ron getting after it through the festival chicane. (C) 2025 Doug Berger | DBPics

That moment deserves to breathe a little.

Ron’s weekend started with the car parked early, a transmission run to Seattle, a Saturday morning thrash, missed qualifying, and back-of-grid starts. By Sunday morning, he had settled himself, kept building, and put the car at the top of the CT4 sheet.

That is not just pace. That is resilience.

And in a PRO3-based car, it means something. These cars do not give you lap time for free. You have to ask the right questions with your hands, feet, eyes, and timing, then listen carefully when the car answers back.

Ron was getting more comfortable throwing the car around. More comfortable letting it move. More comfortable staying in the fight when the environment got messy.

That is the development arc.

Sunday Afternoon: Racing in the Skillet

By Sunday afternoon, PIR was hot.

Very hot.

Air temperatures were deep into the 90s, with track temperatures well above 130 degrees. No one was expecting record pace in those conditions. This was about execution, racecraft, and keeping the car underneath you while everyone else was dealing with the same greasy, overheated racetrack.

In the Group 2 PRO3 race, Ron had challengers all around him. That is what happens when you start to make your presence known. People race you differently. They expect you to be there. They fight harder.

Not an inch to give in PRO3 racing, little mistakes have big time costs.
Not an inch to give in PRO3 racing, little mistakes have big time costs. (C) 2025 Doug Berger | DBPics

Ron started in position, battled early, and kept working through the race. He got past the group he had been racing with the day before and finished P8 in PRO3, only a couple of seconds behind the next cluster of cars up the road. His best lap was a 1:31.354 in the heat.

P8 in PRO3 is nothing to sneeze at.

That mid-pack and front-mid-pack zone in PRO3 is filled with serious drivers. In a class that deep, moving from “learning the car” into “competing with the pack” is a meaningful step.

Then came the Group 5 CT4 race.

Starting from pole, Ron got mugged at the start and had to fight for the rest of the race with Payden Baxter and Matthew King. It turned into exactly the kind of race he needs more of: pressure, passing, defending, imperfect lines, and decisions that had to be made quickly.

He finished P3, on the podium, with a best lap of 1:31.164. That was barely off his Saturday CT4 race pace and impressively close to his cooler-session qualifying benchmark, considering the heat.

Mega.

A first pole. A podium. A P8 in PRO3. A weekend that began with mechanical drama and ended with real signs of competitive belonging.

Awesome work, Ron.

More Than Lap Time

The biggest thing from Ron’s weekend is that the progress was not just numerical.

Yes, the lap times improved. Yes, the results got better. Yes, he put the car on pole in CT4 and ended the weekend with a podium.

But the more important part is that he had to keep the fundamentals alive when the racing got loud around him.

That is one of the hardest transitions for any developing driver. It is one thing to drive well in clean air when the plan is simple. It is another thing to drive well when someone gets alongside, a start gets messy, the car moves underneath you, or a pass does not happen in one corner.

Portland gave Ron a full buffet of those moments.

The next step is making that craft more deliberate and more repeatable. Not just being fast, but being able to access the driving under pressure. Not just getting close to cars, but knowing what to do with that closeness. Not just reacting to a battle, but shaping it.

That is exactly why we wanted him in PRO3.

Dash for Kids: The Other Reason We Were There

While the racing side of the weekend gave us plenty to work through, The Dash for Kids gave the weekend a bigger frame.

During lunch on Saturday and Sunday, racers and teams offered ride-alongs in race cars and exotic cars, with donations going toward the weekend’s charity. Cascade’s format makes the paddock feel open and welcoming, with spectators able to see the cars, talk with drivers and crew, and get a closer look at the machinery that usually flashes by from the other side of the fence.

For Racer on Rails, that meant bringing down the Silver Bullet Spec E46, installing the extra seat, and joining the ride program.

After making the decision to park the 370Z, that actually became a perfect pivot. The competitive work was done. The car had told us what we needed to know. So instead of forcing more laps into worsening heat, we cooled down, reset, and had fun giving people rides around PIR.

That is a good race weekend.

Not because every plan worked perfectly. It did not.

Because the weekend gave us the right answers.

The 370Z showed pace, then showed us the next engineering problem. Ron got hit with mechanical adversity, then turned the weekend into one of his strongest development steps of the year. The team handled a transmission swap, shifter issues, hot conditions, traffic, race starts, and charity rides.

That is club racing in full color.

Final Takeaways

For Gama and the 370Z, Portland confirmed that the car has real speed. The 1:23.592 in Group 4 qualifying was the cleanest read of the weekend, and the team believes there is more available with a true max-effort qualifying format and cleaner track space. But the race also confirmed that cooling remains a priority before Road America. The car can run. The car has pace. Now it needs more thermal margin.

For Ron, Portland was a major step.

He missed Saturday qualifying, started from the back, raced forward, kept improving, put the car on pole for the first time in his driving career, finished P8 in a very competitive PRO3 field, and ended the weekend with a CT4 podium.

More importantly, he became a little more of the driver he is working to become.

Adaptable. Confident. Aware. Comfortable in the fight.

That is what we came for.

And with The Dash for Kids wrapping the weekend in community, ride-alongs, family energy, and a reminder that racing can be both serious and generous, Portland gave us exactly the kind of weekend that sticks around after the trailer doors close.

Goals. Smiles. Memories.

That one checks all three.

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Portland Hoosier Super Tour Recap: Setup Windows, Mental Unlocks, and a T3 Weekend Sweep

Racer on Rails Nissan 370Z leading a mixed Touring 3 race group through Portland International Raceway during the Oregon SCCA Hoosier Super Tour.
Gama Aguilar-Gamez leads the Touring 3 field in the Racer on Rails Nissan 370Z during the Oregon SCCA Hoosier Super Tour at Portland International Raceway.

The SCCA Hoosier Super Tour is one of the biggest stages in amateur road racing. It is where regional racers, national contenders, Runoffs hopefuls, longtime club racers, and professionally prepared teams all end up in the same paddock, chasing the same thing: speed that holds up when the stopwatch and the field both get serious.

For Racer on Rails, weekends like this matter because they are more than another race on the calendar. They are measuring sticks. They show where the cars are, where the drivers are, where the team is operating well, and where the next layer of performance is hiding.

This round brought us back to Portland International Raceway for the Oregon SCCA Hoosier Super Tour. PIR is a uniquely Northwest kind of racetrack. It sits inside a major city, close to the Columbia River, built on land with real history, surrounded by trees, planes, cyclists, and the strange calm of a public park that also happens to host serious race cars. It is one of those places that feels easy until you try to be fast there.

On paper, Portland looks simple. It is flat, relatively short, and does not have the obvious “monster corner” personality of a place like Road America, Thunderhill, or Sonoma. But that is exactly the trap. PIR asks for precision everywhere. The lap is full of medium-speed commitment, heavy braking moments, curb usage, track-out discipline, and small setup decisions that either build confidence or quietly steal time every lap. If the car is not underneath you, the track exposes it. If the driver is not fully committed, the stopwatch tattles immediately.

Racer on Rails Nissan 370Z Touring 3 race car driving over the curbing at Portland International Raceway with race traffic behind.  | (C) 2025 Doug Berger | DBPics
The Portland chicane rewards commitment, curb confidence, and a car that stays predictable under braking and turn-in. (C) 2025 Doug Berger | DBPics

Our weekend lineup had a little bit of everything.

Chris Johnson was back in his Spec E46 in Touring 3 for the first time since last July. Gama Aguilar was in the Nissan 370Z, also in Touring 3, continuing the development push from Thunderhill. Beef Wellington brought out his Touring 2 BMW M240iR. And while Ron Tanemura was not technically in one of our cars, he was still part of the broader Racer on Rails driver development program, racing a Spec Racer Ford Gen3 with Flat Out Racing and continuing to work with Tyler through our coaching services.

Different cars. Different goals. Same weekend. Same stopwatch.

Chris Johnson: Back in the Saddle, Then Fully Lit

Chris started the weekend exactly where you might expect after nearly a year away from the car: knocking the dust off.

The Spec E46 was on older tires, Chris was rebuilding rhythm, and the first part of the test day was about getting reconnected with the car. Braking points. Corner entries. Trust. References. The little internal checklist every driver has to rebuild after time away.

Chris Johnson driving the blue Racer on Rails BMW Spec E46 Touring 3 race car through Portland International Raceway with race traffic close behind.
Chris Johnson returned to the seat of his Spec E46 in Touring 3 and spent the weekend rebuilding rhythm, confidence, and pace. (C) 2025 Doug Berger | DBPics

By the end of the first test day, though, the fog was clearing. Even as the track got hotter and conditions worsened, Chris started closing back in on his personal best lap times. That was the first sign that the speed had not gone anywhere. It was still there, sitting under the surface, waiting for him to believe it was available again.

The next day, we had one of those conversations that matters more than a shock adjustment or tire pressure change.

Chris was talking through what he was feeling in the car, but underneath the words were a few limiting thoughts. Not excuses. Not weakness. Just the normal stuff drivers tell themselves when confidence is still a lap or two behind capability.

The conversation was about the things we tell ourselves. What we accept as true. What we assume is possible. What we decide is “about where we are” before the car and the data have actually said that.

Something clicked.

In Saturday’s race, Chris came alive. He got pulled into a tight battle with a few out-of-class cars that were absolutely flying, and that extra competitive energy did exactly what a good race battle should do. It sharpened him. It pulled his eyes forward. It made him stop driving the idea of the lap and start racing the car in front of him.

The result was a major unlock. Chris knocked roughly a second from his previous bests and started driving with the kind of intent we knew was still there.

Sunday morning, he was determined to prove Saturday was not a one-off. He wanted to build on the confidence instead of simply enjoy the memory of it.

He did.

Blue Racer on Rails BMW Spec E46 Touring 3 race car using the curbing at Portland International Raceway during the Oregon SCCA Hoosier Super Tour.
By Sunday, Chris was driving with more commitment and using the confidence from Saturday’s race to unlock another step forward. (C) 2025 Doug Berger | DBPics

In Race 2, Chris carried the lessons forward. He cleared the cars he had been battling with on Saturday and found himself racing farther up the field, with new competition and a new target. That is always one of the best signs in driver development: yesterday’s mountain becomes today’s baseline.

The wild part? He did all of this while nursing an engine that had given us a scare on Friday. Chris had an over-rev, followed by white smoke out the tailpipe. Jordan kept a close eye on the car for the rest of the weekend, and thankfully it made it through without getting worse.

So yes, Chris had a big weekend on the stopwatch. But the bigger unlock was mental. This was a driver remembering that confidence is not something you wait around to receive. Sometimes you have to go take a bite out of the lap and let the confidence catch up.

Chris Johnson driving the blue Racer on Rails BMW Spec E46 Touring 3 race car ahead of race traffic at Portland International Raceway.
Chris found himself racing harder, cleaner, and farther up the field as the weekend progressed. (C) 2025 Doug Berger | DBPics

Beef Wellington: A Short Weekend, But the Right Call

Beef’s weekend ended earlier than anyone wanted.

The BMW M240iR had a solid shakedown at Pacific Raceways the week before, so we came into Portland expecting to continue learning the car and building momentum. Instead, the car started overheating after only four or five flying laps.

At first, it looked like the usual race-car mystery novel: temperatures okay, then suddenly not okay. The car would run fine, then start building too much coolant pressure and blow through the expansion tank valve.

The team worked through the problem methodically. Cooling system. Pressure behavior. Failure pattern. Repeatability. The ugly little clues all started pointing in the same direction.

Head gasket.

Mega bummer.

That is never the way we want a weekend to end, especially with a new-to-him but still used/junkyard engine. But there is a version of this story that is much worse. We caught it before destroying the whole engine, avoided turning a repair into a full-scale catastrophe, and got the car pointed toward the work needed before June Sprints at Road America later in the month.

Sometimes race weekends are about trophies. Sometimes they are about knowing when to stop digging.

This was the right call. Not fun. Not glamorous. But right.

Ron Tanemura: Expanding the Driving Toolbox

Ron’s Portland weekend had a different purpose.

He was in a Spec Racer Ford Gen3 rental with Flat Out Racing, while continuing to work with Tyler as part of the Racer on Rails coaching program. The goal was not simply to jump in a new car and chase a number. The goal was to expand his driving range.

That matters.

Ron has been intentionally building a broader driving education. Different platforms. Different sensations. Different demands. The SRF3 is a very different animal from a BMW sedan. It is lighter, more direct, more exposed, and less forgiving of half-commitment. It wants clearer inputs. It rewards decisiveness. It asks the driver to be comfortable with the car moving underneath them.

Ron Tanemura driving a black Spec Racer Ford Gen3 through Portland International Raceway during an SCCA race weekend.
Ron Tanemura used the Spec Racer Ford Gen3 weekend to expand his driving range and build a new real-car baseline. (C) 2025 Doug Berger | DBPics

For Ron, the weekend established something important: racing the SRF3 is viable for him. He handled the starts well, showed good awareness, avoided major self-inflicted issues, and built a baseline he can come back to.

The next layer is not secret. It is also not simple.

It is about closing the gap between understanding and execution. Ron has done real work in the sim. He knows a lot of the “recipe” for the car and track. But the real car adds sensation, consequence, tire feel, traffic, imperfect references, and the pressure of being around other drivers. That gap between knowing and doing is where driver development actually lives.

The coaching takeaway was clear: more commitment, more decisive brake release, clearer throttle discipline, more willingness to let the car rotate, and more assertive racecraft once the race settles in.

That is exactly why this was a valuable weekend. Ron did not just collect laps. He collected a sharper understanding of what the next phase of work needs to be.

Black Spec Racer Ford Gen3 race car speeding past the Portland International Raceway front straight during an SCCA race weekend.
A new car, a new rhythm, and another layer in Ron’s broader driver development plan. (C) 2025 Doug Berger | DBPics

And that is the whole point of a driver development plan. Not every weekend is supposed to be a finished product. Some weekends are supposed to reveal the next door.

Gama Aguilar: Engineering the Window

For Gama and the Nissan 370Z, Portland was about building on the lessons from Thunderhill.

At Thunderhill, we had speed, but we were still fighting the car. The Z had pace in flashes, but it was not yet living in a consistent, repeatable window. Under braking and turn-in, the car still had moments where it felt like it was asking for trust without giving enough trust back.

Before Portland, Ian spent a full week digging into the chassis, working through an engineering workbook, checking assumptions, and giving the car the kind of measured attention that separates guessing from development. We are not going to give away every detail of what we found, but the big picture was clear: there was systemic pace hiding in the car.

That was the unlock.

This was not about finding one magic adjustment or chasing a one-lap setup. It was about understanding the car at a deeper level, getting it into a healthier operating window, and creating a foundation we could actually build on across a full weekend.

From there, we reset the approach. The chassis setup moved in a better direction. The car became more predictable. We switched to nitrogen in the tires, including multiple purge cycles to reduce the influence of air and moisture. Then we started fresh on understanding pressure build, temperature behavior, and how to keep the tire in a usable window from the first hard lap to the last.

That became the real work of the weekend.

Not “what makes one fast lap?” but “what makes the car fast, repeatable, and trustworthy every time we lean on it?”

By Friday, the difference was obvious. For the first time ever in the 370Z, we could push the car hard every session and have it respond the same way. The car was no longer giving us a narrow little keyhole of performance. It gave us a window. And once we had a window, we could finally start doing real race-car work.

Side profile of the Racer on Rails Nissan 370Z Touring 3 race car at speed on the front straight at Portland International Raceway.
After ride height, suspension geometry, nitrogen, and tire pressure work, the 370Z finally delivered a repeatable setup window. (C) 2025 Doug Berger | DBPics

That is a big deal.

The official Race 1 time cards showed the progress starting to show up on paper, with the #109 370Z quickly moving from a 1:26.946 opening lap into a 1:24.759, then a 1:24.526, then a 1:24.701. More important than the single lap was the shape of the run. The car stayed in the window. The laps stayed usable. The team finally had a platform we could tune instead of survive.

By the race weekend, we were fine-tuning instead of firefighting.

The result was an easy Touring 3 pole, a Saturday T3 win, and then another T3 win on Sunday to complete the weekend sweep.

Saturday was not without drama. At the start, there was unnecessary contact with the STU pole sitter that could have ended the race before it properly got going. Thankfully, the Apex forged wheel took an absurd hit and somehow held on. The car survived, the tire held, and we were able to finish.

Racer on Rails Nissan 370Z leading a tight pack of race cars through the Portland International Raceway chicane during the SCCA Hoosier Super Tour.
Saturday’s race had contact, traffic, and plenty of chicane chaos, but the 370Z stayed together and brought home the Touring 3 win. (C) 2025 Doug Berger | DBPics

On Sunday, we replaced the damaged wheel and tire, put our heads down, and went for a maximum race-pace push.

That was the most encouraging part of the weekend. Not just winning. Not just getting through the races. But seeing that the car had pace in conditions that were not perfect. The overcast morning cloud cover had burned off by the time our Sunday race started, the track was warmer, and the car still had the ability to push toward the kind of pace we have seen from some of the strongest Touring 3 drivers at this event in prior years.

Gama Aguilar-Gamez driving the Racer on Rails Nissan 370Z Touring 3 race car through Portland International Raceway with a Spec MX-5 behind.
The weekend’s biggest win was not just the result. It was finally having a 370Z that could be leaned on lap after lap. (C) 2025 Doug Berger | DBPics

That is the good stuff.

The kind of weekend where the notebook matters as much as the trophy.

The Team Behind the Weekend

Like most race weekends, Portland had its share of curveballs.

Jordan’s personal car broke down on the way to Portland. Beef’s M240iR tried to turn Friday into a cooling system crime scene. Chris’s Spec E46 had to be monitored all weekend after an over-rev and smoke. The Z needed continued tuning and then a wheel/tire change after race contact.

None of that is unusual in racing. That is the job.

What mattered was how the team responded.

Ian’s engineering work before the event gave the Z a new foundation. Jordan kept Chris’s car alive and monitored. Tyler continued guiding drivers through both technical and mental development. The crew absorbed the chaos, kept working the problems, and moved the weekend forward.

That is what we want Racer on Rails to be.

Not just a shop that brings cars to the track. A team that develops cars, develops drivers, solves problems, and helps people leave the weekend with better tools than they arrived with.

Portland gave us a lot.

A Touring 3 weekend sweep for the 370Z. A major mental unlock for Chris. A hard but smart diagnostic call on Beef’s BMW. A valuable SRF3 baseline for Ron. A stronger engineering process for the team. And a reminder that race weekends are rarely clean, but they can still be deeply productive.

We left Portland feeling like the whole program moved forward.

Goals. Smiles. Memories. LFG.

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SCCA Hoosier Super Tour – Buttonwillow The Circuit

High Performance Race Cars on Track at Racer on Rails.

The Setting: Why Buttonwillow Matters

The opening round of our 2026 SCCA season brought us to Buttonwillow Raceway Park for the first SCCA Hoosier Super Tour of the year, February 21 – 22, 2026.

We raced on The Circuit configuration — Buttonwillow’s newer layout that’s been operating for over a year now and we were here last year, for the very first competition race weekend and event ever held at the new track. Ron competed here twice last season. For the rest of the team, we’ve logged time here supporting customers. But this was our first time bringing the Nissan 370Z to this configuration in race trim.

Touring 3 remains one of the most competitive, tightly regulated classes in SCCA road racing. The cars are production-based, but execution is everything. Small setup shifts matter. Tire management matters. Driver discipline matters.

Buttonwillow’s The Circuit layout also brings a very different technical personality compared to the original “Buttonwillow 13CW” configuration that many West Coast racers grew up on. Traditional Buttonwillow rewards aggression, commitment over bumps, and managing long-flowing corner sequences with a little bit of chaos built into the surface and sightlines. The Circuit, by comparison, feels more modern and much more precise. The pavement quality is smoother, the transitions are faster, and the corners tend to stack technical decisions on top of each other.

Sun is setting at Buttonwillow The Circuit – when the sun goes down, the air and track temps drop fast in February.

Several sections reward sacrificing entry speed to maximize minimum corner speed and throttle commitment on exit, while other complexes punish even tiny balance mistakes with lost momentum that carries for multiple corners afterward. It’s also a track where aero drag, mechanical grip, brake release timing, and tire temperature management all become more interconnected than people initially expect. A car that feels “pretty good” for one lap can quickly become difficult over a race run if the balance isn’t properly managed. In many ways, The Circuit feels less like old-school club racing Buttonwillow and more like a purpose-built modern technical circuit that rewards disciplined engineering and adaptable drivers.

At just over 2.5 miles in length, The Circuit combines roughly two dozen corners and transitional elements ranging from slow, technical rotation zones to fast, committed sweepers that reward precision and patience. The layout constantly shifts between decreasing-radius corners, long loaded exits, quick direction changes, and several areas where throttle timing matters more than outright bravery. For Touring 3 cars, gearing becomes especially important because many sections sit right on the edge between carrying momentum in a taller gear versus risking upsetting the platform with an additional shift.

The track surface itself is relatively smooth compared to the original Buttonwillow layouts, but the environment still plays a huge role in grip evolution. Located in California’s Central Valley, the circuit is frequently impacted by wind carrying fine dust and sand onto the racing line, while dramatic temperature swings between cold mornings and warmer afternoons can significantly change tire behavior and overall balance throughout a race weekend.

Buttonwillow’s Circuit layout rewards rhythm and precision. There aren’t many places to hide mistakes. It’s a track that exposes imbalance — mechanical or mental.

That made it the perfect place to start the year.


The Mindset: Process Over Outcome

Coming into the weekend, our objectives were clear:

  • Establish a stable performance baseline for the 370Z
  • Continue refining Ron’s throttle application and adaptability
  • Validate our tire pressure management process
  • Execute cleanly as a team

We intentionally chose to run lightly used tires instead of bolting on fresh rubber. Not to handicap ourselves, but to operate with discipline and long-term planning in mind.

For Ron, this season is about expanding his toolbox. He’s put in serious off-season work — simulator training, Porsche ice driving, DirtFish advanced programs — all focused on becoming more adaptable and decisive with inputs.

Ron Tanemura carving corners in his Touring 3 BMW Spec E46

For the team, this season is about raising our operational standard. When something breaks, we fix it properly. When development is needed, we create bandwidth for it.

No chasing. No scrambling.

Build it right.


The Weekend Story

The Journey South

Jordan and Ian drove the truck down through snow over the Oregon passes. Enough weather to keep things interesting, but they maintained traction and avoided chains. We arrived in California clean and on schedule.

That matters more than people think.


Testing: Cold Mornings, Steady Gains

Thursday brought cold temps and passing showers. Ron used early sessions to reacquaint himself with slip and rotation. By Friday he was back at 2:00.0 pace — only tenths off his personal best from last year at this track.

The 370Z test sessions were structured and deliberate. Controlled three-lap tire validation runs. Minor line adjustments through Turn 3, 5, 8, and 10. By Friday afternoon, we were consistently in the 1:56s with room left in the data.

The car was stable. Predictable. Repeatable.

Baseline established.


Mechanical Curveballs

Late Friday we discovered the Nissan’s clutch was nearing end-of-life.

Ian working his tail and back off, getting the clutch replaced on the Touring 3 Nissan 370z Nismo

Saturday morning became paddock surgery.

Transmission out.
Clutch replaced.
Qualifying missed.

Ron’s clutch was also right at a season’s worth of cycles, so we proactively replaced his as well. Two clutch jobs in one weekend.

It wasn’t glamorous work, but it was done calmly and correctly.

That’s culture.


Saturday Race: From the Back

Starting P28 overall after missing qualifying, the only direction was forward.

The opening lap was tight but clean. From there, it was controlled aggression and patience.

Twenty-two passes in twenty-five minutes.

Finished:

  • P6 overall
  • P2 in Touring 3

Fastest lap of the race would have placed us P2 on the grid for Sunday.

Gama in his Nissan 370z Nismo working his way through field during race 1.

All on used tires.


Sunday: Clean Execution

Sunday qualifying required careful temperature management after diagnosing a cooling fan issue. Despite traffic on both flying laps:

  • P2 in class
  • P4 overall
Gama and Ron making laps and loving every braking zone at Buttonwillow The Circuit

The race start was steady. The leaders stretched a gap as the rear tires began to show their age around lap five. Turn 1 required finesse and progressive inputs to manage increasing rotation.

Post-race inspection confirmed tire edge wear consistent with heavy cycling.

Final result:

  • P2 in class

Not quite the fight for P1 we would have liked, but an honest and disciplined run.

Starting the Race 2 from the front of the grid but not enough pace to truly challenge for P1.

Ron: Double Podium Weekend

Ron started P3 in class Sunday and battled closely with Spec MX-5 cars running in STL for additional seat time. Those cars were quick and the racing was tight.

There was side-to-side contact exiting Turn 3 that pushed him wide, but he stayed composed and fought back.

He finished:

  • P3 in class
  • Double podium weekend

Both races resulted in an all-Pacific Northwest podium sweep, with Scotty B White completing the trio.

Ron left energized and sharper. More sensitive to the car. More decisive on throttle. Clear on what to improve next.

That’s exactly what this weekend was for.

Tyler and Ron obsessing over the data, trying to figure out how to go faster, faster!

What We Take With Us

We worked through:

  • Snow-covered travel
  • Two clutch replacements
  • Cooling fan troubleshooting
  • Traffic-filled qualifying sessions
  • Tire degradation management

None of it materially impacted our results.

More importantly, the 370Z now has a clear and repeatable performance baseline. The upgraded big brake kit performed flawlessly. The car responds predictably to setup changes.

That’s a full PNW podium sweep for the Buttonwillow Hoosier Super Tour

We leave Buttonwillow not chasing something unknown — but building on something understood.

That’s the difference.

Goals were pursued with discipline.
Smiles were earned in the paddock and at dinner tables.
Memories were made in the moments that required composure.

Next stop: Sonoma Raceway with NASA.

The foundation is set.
Now we build.

Gama making most of the camber near corner apex to get the most speed through the corner.