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NC Miata Thunderhill East 2:11.5 2025-01-50
Phfong
Level:
Amateur
Phfong
Lap Date : 06 Jan, 2025
2min 11.522sec
Thunderhill (East 3 Mile w/ Bypass)
Mazda Miata MX-5 NC 2009 (Phfong/RE71RS)
Medium
Tire: 200 Potenza RE71RS
Brake: G-LOC R8
Tire Size: 215/45/17
Published on 25 Apr, 2025

3rd time at East, first time with new Xidas coilovers! Definitely sharper than stock suspension, but also means more precise inputs are needed.

* 215/45/17 Bridgestone RE71RS, 10th heat cycle
* 32 PSI hot all around
* GLOC R8 Front and Rear (8th track day)
* Xidas Race Suspension
* 7 clicks front, 8 clicks rear from full soft
* This setup feels underdamped and not stable
* Stock Sway Bars
* Stock LSD
* Rear Chassis Brace and Aftermarket X-pan brace (I.L. Motorsports)
* Stainless Steel Brake lines
* ATE Type 200 brake fluid
* Alignment
* Front
* -2.3 deg camber
* 0 toe
* Rear
* -2 deg camber
* 0 toe
Interior
* 2.5” seat lowering brackets
* Cipher Steering Wheel
Notes
* lower camera a little to see road more
* Try braking earlier and softer everywhere, so that there isn’t too much brake pressure during turn in. I had quite a bit of entry oversteer due to braking hard and not trailing off enough before turn in.
* A thicker front sway bar is needed to make this setup more understeery and stable for my current level of driving and driving style.
* Last session 8F/10R clicks from full soft felt better, but not completely settled still.
* Best to be somewhere in the middle for bypass, too much to right or left and car will be unsettled or track will run out.
* Need faster hands and be more active in countersteering.
* T2: Play with throttle more and be more active with steering.
* Turn 5: Car placement, and turn in need work, I’m missing the apex.
* T6: Had a lot of oversteer moments here.
* T9: brake softer and longer to be able to trailbrake in and carry more speed.

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