Track Video Thread

[George Hill]

My buddy's wife was taking pics, I think this is your car Wernd ?

[Wernd]

Do you normally run with Driver's Edge? I normally do the 3.1 but I've got too many events coming up. Need a break.

No, I'm from Iowa. I just went down to get the car right before VIR

[bigjae46]

1500, wow!

Nice laps. I was there too, still learning my new setup, but very fun on the 3.1. And I didn't get any data all weekend, but a buddy caught me mowing the grass. 🤪

https://youtu.be/uGp24ie5COg

Dang...at least you didn't go flying off there sideways and out of control. That turn is scary.

[George Hill]

1500lb rear springs

1500, wow!

Nice laps. I was there too, still learning my new setup, but very fun on the 3.1. And I didn't get any data all weekend, but a buddy caught me mowing the grass. 🤪

https://youtu.be/uGp24ie5COg

[bigjae46]

Finally after 3 years I have the car handling close to how I want it! This was after talking to a fellow instructor from the Windy City chapter and making a trip to Doghouse Performance located at MSR Cresson.
Big changes were wavetrac diff, 1500lb rear springs, and a proper doghouse alignment, at which point they recommended I drop my MCS canister pressure to 170psi. Car was amazing but had a bit too much roll so they suggested taking the front canisters to 180, which fixed the issue.
Anyway here's the video of a few laps

https://youtu.be/2RssvjXNxi0?si=psy4R58UfvdEdEs0

Do you normally run with Driver's Edge? I normally do the 3.1 but I've got too many events coming up. Need a break.

[Wernd]

Finally after 3 years I have the car handling close to how I want it! This was after talking to a fellow instructor from the Windy City chapter and making a trip to Doghouse Performance located at MSR Cresson.
Big changes were wavetrac diff, 1500lb rear springs, and a proper doghouse alignment, at which point they recommended I drop my MCS canister pressure to 170psi. Car was amazing but had a bit too much roll so they suggested taking the front canisters to 180, which fixed the issue.
Anyway here's the video of a few laps

https://youtu.be/2RssvjXNxi0?si=psy4R58UfvdEdEs0

[bigjae46]

NASA at Motorsport Ranch in Cresson, TX. The Sat winning lap for TT4. I need a new suspension...bad!

[cali chase]

New "country club" track near Orlando, FL "Circuit Florida."


Z4M Coupe Racecar: Circuit Florida 2/14/26 1:25.79

[samthejam]

New PB at my local track, still on those used 245 A052s. They gave up the ghost a session after this one. I want to do a 1:45 here on street tires. Almost there.

Biggest slip and slide bloopers from that.

You can roast 3rd gear with 200tws!

How much track out? All of it

[cali chase]

Sebring 1/18/26 in cooler weather: 2:26.32

[bigjae46]

Good stuff, where do you make up the most time here, and where do you lose it? I'm thinking of trying cresson next season

Big bend and rattlesnake - have an easy second probably in each turn. Entering ricochet, I really need to left foot brake there because I'm not trying to scrub speed...just want to get some weight on the front tire so it turns. But that is not worth much time.

I am much more comfortable on the new side - 1.3 mile course.

The 3.1 mile course is awesome! I think it is the best track in TX. The 1.7 mile...it is hard to justify towing my car 4.5 hours from Houston to drive the 1.7.

[nytgamgingcs]

Good stuff, where do you make up the most time here, and where do you lose it? I'm thinking of trying cresson next season

[bigjae46]

Motorsport Ranch 3.1 - my favorite track layout! Not loving the car right now between the worn-out suspension which makes driving the car painful and the meh Falken RT660s.

[cali chase]

Tire puncture at Sebring at 115mph through Bishops bend!


A few others here: https://www.youtube.com/@CaliMotorsp...neering/videos

Z4m coupe racecar: 3150lbs wet, race fuel qty with driver

Square 295/30/18 Hoosier r7s
Euro headers: 1.625" Primary, 2" dual collector, Running to dual 2.5" catless midpipe/x pipe.
E85 conversion (walbro 450, 650 FIC injectors)
Turner motorsports CSL intake, with Intake Air temp sensor moved to bell of intake (not body where TMS has it).
12.5:1 CR CP pistons (87.25mm bore (.25mm oversized), CP rods (stock stroke 91mm) (3.26L displacement)
288/280 12.5mm lift Schrick Cams and DLC coated followers
stock vales, bmw performance 9k rpm springs (supertech SPRK-2521/BM 24)
ported/polished intake and exhaust ports (minor head work)
Bimmerworld Dual plate tilton clutch/ ltw flywheel

[samthejam]

New PB at Road Atlanta, finally in the 37s.

1:37.40 and 1:37.21

Temperatures were in the 30s, but the A052s were amazing. The 245/40R18 takeoffs were great, I think if I had 265s could take the heat better but still very impressed.