Track: Buttonwillow Raceway Park CW#13
Lap time: 1:55.9
Car: E92M
Mods: KW clubsport springs 700/850lbs, Mini cooper battery, rear seat removed, OEM front seats, RPI xpipe + muffler, stoptech BBK front and rear with SR34 pads, RE rear toe link.
Notes/Comments: On apex 18x10 et25 with maxxis RC-1 275/35/18. Had predictions to do better laptime, but went off track 2 laps =(. Wanted to try 1.54 next time, but ended up selling the car.
PB is around 5min
Track: Buttonwillow Raceway Park CW#13
Lap time: 1.57
Car: Z4M coupe
Mods: jrz rs2, PFC BBK front and rear with PFC07 pads, rear completly stripped, recaro profi spg, momo wheel, turner toe arm, turner camber arm, solid diff, subframe, trans, engine mounts, stock tune, FCAB, RCAB, Supersprint headers + full supersprint exhaust, 13lbs battery.
Notes/Comments: On apex 18x9.5 with re71r 275/35/18. Got totally wrong spring rates for this car...first time trying the jrz.....had 700/850lbs, just like the e92, and noticed its too much for z4m so was dancing all over the place.....now I am running 500/600, but think its still stiff. Wanna go 400/500 lolol