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New Track, New Car, Who Dis?

The second stop in the 2024 SCCA Hoosier Super Tour schedule for the team was NOLA Motorsports Park – a new track for all the drivers and most of the team. Relatively flat, built on a swamp and host of SRO GT Americas race events the past few years, NOLA ended up being a decently technical track and the Louisiana weather initially welcomed us with 70F, sunny and with a breeze weather. But once the test day came, the cold air from up north and a weather system from down south decided to join the party and aside from Sunday, we had low 40F temps, rain, and wind. Why do we even leave the PNW to go racing???

Thoughts on NOLA

Flat, minor (but critical) banking in some corners, no point-n-shoot corners and not a lot of time above 120mph meant that balancing the car in the cornering bits was going to be a premium.

NOLA has 16 corners with 10-11 of them (depending on how you count the corners) are right hand corners and there are two sections of the track where you have consecutive right hand-corners, which makes those left-side tires important. From Turn 4, you are only making right hand turns until Turn 10! Turn 4 is a slower speed corner which requires a good amount of mechanical grip. Turns 5, 6 and 7 are higher speed corners where you are trying really hard to not over-slow for turns 5 and 6 but as you try to carry the speed into those corners, the left rear tire is taking a beating from the slight high-speed yaw action when trying to rotate the car and then accelerating through the corner.

The esses complex is relatively straight forward but carrying speed into Turn 9 (the first ess) is critical and sets up the rhythm through the rest of the complex.

Finally, the left side tires only get a mini-break before needing to turn hard at Turn 13 and then suffer through a long duration compound section of Turns 13-14, which leads onto the main straightaway.

If you’d like a more detailed walkthrough of the track, check out this video that came in super handy from ASM and Tom O’Gorman.

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Credit: ASM + TOMO Coaching

Ann’s new baby shark! 991.2 Porsche GT3 Cup Car

As some of you may have read in past posts, Ann has been developing at a rapid pace the past couple of years and driven the wheels off a Porsche Cayman GT4 Clubsport, mostly in SCCA GT2 and T1 classes. At the end of the 2023 season, with the repairs needed on the car from a failed tire during the runoffs, Ann made the decision to move on from the Cayman and jump into a GT3 Cup Car. So she spent the off-season looking for options and just in time for the NOLA race, we took delivery of her new steed on the Wednesday before the race weekend. Exciting but yikes!

With her car being new to the team and her and limited information of the running state, we set low expectations for the weekend: get the car on track, have it circulate consistently and have Ann start to build confidence in the car. Any specific result was not a consideration at all for the weekend.

Look at the butt on that! Yeah – it must work out. Ann’s new 991.2 Porsche GT3 Cup Car!

Jordan got to work on the car and after completing a full inspection, we were in decent shape! There were a couple of suspension bits to monitor, some to proactively replace but aside from that, it was just work to get the car personalized to Ann’s preferences and get the car out on the track so we could know more confidently, what we had on our hands. The car was ready to test on Friday but straight up gross, wet, and cold conditions, we made the team decision we’d wait until Saturday where there was a window of potential dry weather.

Saturday started off wet but the rain started slowing around 9-10am, just in time for qualifying. Ann went out on wet tires in case it started raining again (it didn’t) for her maiden voyage and by the end of the session, we had a clean bill of health! By the afternoon race, we fitted a set of the used tires the car came with and sent her out to get more laps, see what breaks and build confidence! After race 1, she moved up several positions, finished P6, nothing broke and ended the race with the last 2-3 laps at a decent enough pace where we could actually start looking at performance.

On Sunday, we finally got a break in the weather with the system that ended up delaying the Daytona 500, moving south of us, leaving us with clear skies but COLD winds. Beggars can’t be choosers! Ann continued to take time off her lap times during qualifying and exchanged places to finish P6 out of 13 in her first race! In race 2, Ann picked right back up where she left off, took another 2 seconds off her fastest lap time to finish with 4 laps in the low 1:50’s. All again on 2 year old used tires with unknown number of heat cycles. Safe to say that Ann is loving her new Porsche GT3 Cup Car and is ready to build on this for the next race at Road Atlanta!

One last thing on Ann to put things in perspective. Just a few years ago, she had never been on a race track, let alone raced wheel to wheel. ~3 years in and developing at a very high rate in a Cayman GT4 Clubsport which is mega fast but has a lot of driver aides, she decided to move onto a monster of a platform. She not only jumped in with full confidence to drive, but she truly slayed this beast on her first outings in it. Incredible job, Ann!!!

Ann driving back into the pits from her first on-track session in her new Porsche 911 GT3 Cup Car!

Dave continues building on his BMW Z4 M Coupe

Dave took his new-to-him BMW Z4 M-Coupe out at Sebring for the first race weekend and made solid progress on the new platform but NOLA brought a whole new set of challenges with the weather and the gearing. The Z4M has won the SCCA Runoffs the last 2 years in a row, in large part due to the M3 based gearing. Nice and tall gears to let it stretch it’s legs out on the long straight aways. NOLA doesn’t have any long straight aways, so we knew going into the weekend that the gearing wouldn’t be optimal for the car but we’d still make the most of it.

Dave took part in all of the test day sessions but as covered previously, the conditions were horrible so they were good for getting a sense of the track from simulator preparations but gave next to no representative data for what ended up being dry the rest of the weekend.

Dave (and Gama) qualified on Saturday AM on wet tires (along with the rest of the field) but it ended up being damp to drying track surface. In race 1 Dave got out to a good start, avoided spinning on the oil left by a T4 car that dropped oil around the final corners leading to the main straight away and finished P6, one spot behind Gama who spun on that oil and had to battle his way back from last place.

On Sunday, Dave worked committing to throttle in one smooth motion during qualifying and dropped another almost 2 seconds from his personal best! In the race, which finally brought some track temperature with the sun appearing, he built on those learnings, took advantage of mistakes from other drivers and came in P5, chipping away at the gap to P4! Road Atlanta should be better suited for the powerhouse BMW Z4M with that long back straight away, two uphill sections where torque pays off big time and it being Dave’s 3rd time back to the track!

NISMO 370Z Starts to Deliver on it’s Potential

At Sebring, we saw signs that the 370z could compete for podium positions but rain in the wiring and dealing with the ice mode issue held us back from being able to truly show the car’s potential. Fast forward to NOLA where the brake vacuum controller that was requested to be allowed, was approved (yay!!) but not legal until March 1st, we had to figure out how to make due with an ABS System that could freak out at any point. We tried a few different things and while not perfect, they were good enough for us to feel comfortable running the car for the weekend.

On the morning of the test day, we decided to switch to wet tires due to the rain that had started but a wheel stud failed when trying to remove the wheel. Ugh! Memo jumped on the problem and 3-4 hours later, the car was ready to go, only to make the last test session of the day, just to make sure everything stayed together. Hats off to Memo’s effort and problem solving – as we chatted on the sidelines through the repair, had this type of an issue occurred while any of us drivers would have been there on our own – game over. Someone help me push this thing into the trailer but with Memo and or team on-hand, dang near anything can come up and as long as it’s safe, they’ll get the car back on the grid.

In the Saturday AM qualifying, we went out on wet tires like everyone else and finished P4, believing we had more pace in the car and on the second row, so all the things to play for. In the Saturday afternoon race, towards the end of lap 2, someone lost an engine, dropped oil all around the last couple corners. In the heat of the battle and with wet spots all around, I didn’t spot the oil (though the team had radio’ed it in) and got caught out when the rear tires hit the oil.

It took me a bit to get the car re-fired and out of the completely soaked grass but got going again, put my head down, worked my way back to P5 and was catching the leading group at 1-2 seconds per lap (of which I didn’t realize at the time and was somewhat frustrated with my pace).

The next day for the Sunday AM qualifying, we swapped on some lower heat cycle tires (specifically, the tires that I used during the VIR Runoffs in the installation laps/sessions) and a new tire on the front left corner. Better tires but still not a full on sticker run. First flying lap was good but I wasn’t pushing 100% and tires weren’t fully into the working window. The 3rd flying lap I let it all out and found myself a very fast Danny Stein in his Mazda STL car which provided a nice tow around the track, which resulted in a 1:55.2XX and pole for T3! On the next lap, I was slightly up on that 1:55.2XX lap time and I was going for another flyer to try and improve. I braked at the same point for Turn 1, did my downshift, turned in and then full front end lock up – sigh. This would end up being a telling sign of the rest of the day.

For the race, we decided to raise the car all around to help with compliance around the bumpy track. Thanks to fellow Nissan racers Rick Kulach and Richard Baldwin, we were able to get our hands on some taller front springs and made the change in time for the race.

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Watch the Sunday Touring 3 Race where Gama Aguilar starts in P1 and leads from flag to flag.

When the race started, I focused on getting a good start and ideally not be competing for the corner going into Turn 1. Luckily that happened and after the first lap, decided to pump out the fastest laps I can could muster so that I could build a healthy gap to P2. All was going to plan until I locked up going into T13 and had to take the escape road. Lesson learned that even though I thought the tires were still fresh, it was simply too much speed for this *awesome* (sarcasm) brake system to handle. From then on, I focused on braking a little earlier and softer in all braking zones, knowing I’d be leaving some time on the table but that would be better than locking up and flying off the track.

My plan was to steadily build the gap so that by the time we hit lapped traffic, I could use that pull away. Unfortunately, the rest of the competitors were not aware of my plan. haha

Sometime about mid-way through the race, someone lost a big lip spoiler or some strip of something that was 4-5′ long and right at the exit of Turn 8 of which I didn’t see until it was too late to do anything but run right over it. There was some loud banging as it went under the car and I had to slow to figure out if anything had impacted the handling/safety of the car. No issues but I lost a solid 1-2 seconds.

The next couple of laps, I had to take Turn 8 more cautiously so that I could see where that object was and not run over it again. Perfect. 🙁

Some laps later, Richard’s 350Z had a tire failure and he pulled off to the right of the essess, causing a local yellow. I ran up on a lapped T3 Mustang right in that spot and there went my entire gap to P2. From then on, it was a battle to steadily build up that gap.

2011 Nissan NISMO 370Z SCCA Touring 3 Spec at night with lights on.
Clearly bias but look at this thing!

Another thing that I have been struggling with is the shifter and specifically, the 5th to 4th shift where the shifter doesn’t self-center and will easily drop into 6th gear, not 4th gear. That shift is critical for Turn 8 and I had to over slow to make sure I got the shift done right and even then, I screwed it up a couple of times – another .5-.75 seconds lost on each screw up.

With a few laps left in the race, started coming up fast on a T4 car going into the essess and made the judgement call to make the pass before we got perpendicular to the standing yellow flag – barely made it!

Finally, going into the last lap, I was focused on matching or improving my personal best, knowing the left side tires were struggling. Half way through the lap, I was almost matching my fastest lap but knew I was vulnerable in the essess due to the 5th to 4th shift but still had a decent run through the section. P2 car was on my rear bumper so going into Turn 13, I ran a more defensive line, braked earlier and softer, go the downshift done and when I started turning, the front end locked up again.

My only choices were to continue plowing forward and straight into the grass, of which when that happens, I would have likely lost control of the car until it hit the asphalt again OR come of the brake and straighten the wheel so I could take the escape road. I did the second path as I had earlier in the race, then focused on making sure I didn’t make contact with anyone while rejoining the course. Coasted through the escape road, looked to my right, saw no cars and then rejoined with a primary concern of not causing a wreck.

Ended the race in P1 but post-race, the stewards felt like I gained an unfair advantage by taking the escape road and while that wasn’t my intent at all, I had no argument against it. Minor disappointment but in the grand scheme of things, very pleased with the results.

We made it through a weekend without the brake vacuum regulator and no damage to the car or other cars, learned more about the car and finally got consecutive on-track sessions to build base level confidence in the car. This car is finally showing the potential we know it has!

Mega thanks to the whole Racer on Rails team that made the NOLA SCCA Hoosier Super Tour weekend a massive success! Next up is Road Atlanta in March where the team is looking to build on success and momentum in 2023. Let’s go!!!

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2024 Hoosier Super Tour Race 1 – Sebring International Raceways

After a very short “off-season” coming off the 2023 SCCA Runoffs held at Virginia International Raceways for the second year in a row, the team regrouped, got cars turned and headed to Sebring, FL for the first race of the year.

With a new racing year, we have some changes on the team. For the first race, we brought down Simon Asselin in his 991.1 Porsche GT3 Cup Car, racing in the GT2 class for a second year in a row. Dave Orem has moved from a BMW Spec E46 in Touring 3 class, to the 2023 Touring 3 National Championship winning BMW Z4 M. Gama Aguilar returned in his freshly rebuilt Nissan Nismo 370Z, also competing in Touring 3 class.

Ann Doherty is in the middle of transitioning into a new car and new class for 2024 – stay tuned for updates! Thad Berger will be focusing on his Porsche Cayman GT4 MR in Touring 1 class but will miss the first couple of races and join the tour at Road Atlanta in March.

Simon Asselin Porsche 911 GT3 Cup Car in GT2 Class

Simon took official delivery and got his first laps in his Cup Car at this race last year. Since last year, Simon has had several solid race weekends, upgraded suspension with Motion Control Suspension (MCS) 3-ways, experimented with different tires, and iterated on both dry and wet setups. With a stronger foundational knowledge of the car and seat time, the goal for the weekend was to build on that and maximize competitiveness.

With the changing conditions throughout the weekend, it was a challenge to iterate on the dry setup but Simon made the most of the conditions for qualifying on Saturday AM with a P5 in full wet conditions and only 1 second separating him from P2.

At the start of the race, Simon lost a couple of positions but quickly got on his horse to recapture the positions and before a full course yellow came out that ended the race, Simon secured P5 and most importantly, improved on his PB at Sebring by 2 seconds!

Simon Asselin in his Porsche 991.1 GT3 Cup Car, racing in the GT2 class.
Simon Asselin piloting his Porsche 991.1 GT3 Cup Car at Sebring International Raceways at the SCCA Hoosier Super Tour.

On Sunday, the forecast was for cloudy skies but dry pavement. Well, the forecast didn’t pan out that way, and not at all. We awoke to passing showers and rain started properly falling before lunch. By race time, it was a full wet race and the first race group after lunch would be the GT2 race.

Right as the cars came around Turn 17 (Sunset) for the green flag, many cars moved into pit lane to change onto wet tires which shuffled the starting grid and created some confusion. A car on the second row lost control of the car at the green flag, tried to keep it together but unfortunately the car hooked right and ultimately making contact with several cars, including Simon who properly collected the other car. Simon had nowhere to go and thanks to all the safety equipment and design of the Porsche GT3 Cup Car, the energy was disbursed, eliminating major physical harm to Simon. He walked away from the incident and has been recovering well. The car took a significant hit to the front end and a more minor hit to the rear. That was the end of the race and we are actively getting the car evaluated and on a path to repair.

Dave Orem BMW Z4 M-Coupe in Touring 3 Class

Building off another solid year of driver development in the Spec E46, wanting to continue developing as a driver but also wanting to have a material chance to podium at our events, Dave couldn’t pass up on the opportunity to purchase the 2023 SCCA Touring 3 National Championship winning car.

The BMW Z4 M-Coupe is essentially an E46 M3 but with a smaller body that can punch through the air more effectively and a much lower center of gravity. At tracks like Road America where the Runoffs will be run over the next two years, where we spend a material amount of time over 100mph, this car is one of the favorites to continue competing for the top steps.

Dave Orem getting used to his new-to-him BMW Z4 M-Coupe in the SCCA Touring 3 Class at Sebring International Raceways

Dave only had limited testing before the trip and in cold/wet conditions so the goals for the weekend were simple: learn the car, build confidence and drive it into the trailer at the end.

During the Thursday Test day, Dave started building confidence in the car and getting used to the taller gearing compared to the Spec E46 but in the last session, he lost what would end up being an axle shaft (no drive), which left the team sourcing parts and getting the car fixed on Friday, thus missing practice on Friday. Saturday he qualified P7 in his first competitive wet session, while dropping time each lap. In the race, he lost a few positions in the start battling with T2, SMX and T3 cars, got himself settled in and started picking away at the cars one at a time. By the time a black flag came out that would eventually end the race, Dave had hit his best lap time in the car and feeling/seeing where the big chunks of time were left.

On Sunday, the Touring 3 race was the race right after Simon’s GT2 race, with full wet conditions. Dave started P16 overall, lost a few spots in the first few laps due to the visibility but after a full course yellow to move Gama’s 370Z that lost electronics due to the wet weather, Dave got moving and got back all but one position.

Overall given the inconsistent conditions throughout the weekend and battling through a lost day of running on Friday, Dave had an excellent first race weekend in his new-to-him race car.

Gama Aguilar Nissan 370Z Nismo Touring 3 Class

Gama debuted his 370Z at the 2023 Runoffs but unfortunately suffered from a catastrophic “Ice Mode” situation at Oak Tree corner where the car suffered significant front end damage, along with injuries that took 2.5 months to mostly recover. In that recovery time, Gama, Tyler Mayer and the team dug deep and got the car fixed and tested in time to make the Sebring race weekend.

Similar tone to Dave’s goal for the weekend, we only had a couple of goals for the weekend: first was to experiment, document, and share results on different potential solutions to better understand and mitigate the risk to “Ice Mode” and second, establish a baseline pace and characteristics to truly start leaning on the car.

Gama shaking down and testing things to figure out the brakes in his 2011 Nissan Nismo 370Z in SCCA Touring 3 Class

One of the leading theories behind Ice Mode is that the brake booster in the 370Z is WAY over-powered. That means that for every pound of pressure/pedal effort the driver makes on the brake pedal, the power assisted brake booster, magnifies that force into the braking system. This is normal in power boosted and ABS based braking systems and it makes sense for normal street driving where the cars are not being subjected to the G-forces that are seen in racing conditions and with extremely sticky tires. Normal drivers don’t need to hit the brakes very hard to get to maximum braking and they are usually on street tires with much less grip.

In our conditions, what we’ve found is that this overly powerful brake booster contributes to the ABS system freaking out and potentially locking the driver out of the braking system. Not good! So to test this theory, we installed an AIM Brake Pressure sensor and a Sakebomb Garage Variable Brake Booster Vaccum Controller. This device in installed in-line between the engine and the brake booster and can adjust the amount of vacuum fed to the brake booster and thus adjusting the maximum about of brake boosting, the booster can provide.

Learnings

After installing the vacuum controller, we turned it all the way “off” in that it didn’t apply any adjustment to the vacuum levels, we hit the brakes (with ending running) with a 10/10 brake pedal effort hit and saw the impact to the brake pressure sensor —> 2,000psi! Holy moly! That is insane. Now granted, that took a massive pedal effort that frankly isn’t realistic in any conditions but our normal pedal effort braking still resulted in ~1,800psi of brake pressure. That is still insane – not even Motorsport ABS systems can handle those levels of brake pressure in a system. We then modulated the pedal effort to see what it took to keep brake pressure below 1,000psi (generally accepted as about the max range most braking systems can handle *and* slow the car down – anything above these levels will not only make the ABS system overwork but it won’t effectively further slow the car down). The result was that it was dang near impossible to repeatedly be that gentle with the brake pedal and the modulation window from 600-900psi was even more difficult.

We don’t know 100% that this is the root of the issue behind Ice Mode but this sure as heck isn’t helping things. So we found the adjustment level where the max brake pressure we could possibly hit was ~1,000psi.

We also tested 2-piece rotors from Paragon, which have a more Motorsport focus hat design for better heat consistency across the rings and hats and we experimented with different brake pads, with all of them being in a direction of less aggressive pads.

Catching the overall theme here? All experiments were around making it harder for the OEM ABS system to freak out from sudden spikes in brake pressure and/or changes in wheel speeds.

The results? We’re going in the right direction. Prior to adjusting the controller to max ~1,000psi brake pressure, we didn’t hit ice mode but were able to get the wheels to consistently lockup in “heavier” brake application. Interesting that a functional ant-lock braking (ABS) system, still allowed tires to lock up. Hhhhmmm….

After making the adjustment and going straight into a race due to the transmission failing during the last test day session, the brake pedal was MUCH better and finally allowed me (Gama) to start building confidence in the brakes.

I started at the very back of the Touring field (split start) in P24. By the end of the race, I’d moved up 13 positions total, finished in P8, right on the tail of the next few cars in class and ending with the 3rd fastest lap of the race! Starting to cook with some real fire!

For Sunday’s race, we’d start closer to the front but in full wet conditions. The start was okay, picking up a position but not able to be more aggressive because how bad the spray was in front – literally couldn’t see more than 10-15 feet in front. Once the cars started stringing out, made up some more positions and mid-way through second lap was in P2 in class. Then suddenly the electronic controls inside the car went dead but the car was still running – clearly water had gotten in somewhere and started causing shorts.

Gama Aguilar moving to P2 before an eventual DNF due to water in electronics.

Going into T17, I broke early and soft but with the amount of water on the track and how bumpy the track is, I ended up spinning along with several other cars and thankfully, came to a stop before making contact with anything. With no functioning electronic controls in the car, I wasn’t able to get it running again and had to DNF.

Making Lemonade out of Lemons

To top things off, a fellow competitor in Touring 3 decided to protest me in the 370Z for running an illegal part, even though we had been openly discussing and sharing the testing plan, as the goal was to figure out how to make these cars safe, not to achieve a performance advantage. We were prepared and okay with this potential scenario but it was still disappointing for someone to protest the car when the focus was on safety *and* that competitor finished ahead of me on both races – e.g. no impact to his or anyone in the podium position places.

Despite that, we leave Sebring optimistic about what we’ve learned to make these cars safe for people to race in Touring 3 class. We are not only going to make a rules change proposal to allow this non-in-car adjustable controller for the Nissan 370Z and we are looking at ways in which we can still limit the vacuum to the booster, without the addition of a controller in case that proposal doesn’t go through.

What’s next? Round 2 at NOLA Motorsports Park!

The next round in the 2024 SCCA Hoosier Super Tour is at NOLA Motorsports Park in New Orleans, LA in February. Dave and Gama will be there for sure. Simon is TBD based on the outcomes of repairing the Cup Car and Ann is targeting to join at NOLA. This will be a new track for everyone so lots of time in the simulator is in store for all of us between now and the weekend of February 18th!

Big shout out to the whole Racer on Rails crew who made getting the cars ready and transported across the country, happen!