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      01-22-2013, 09:48 PM   #46
Apex Everything!
radiantm3's Avatar

Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

iTrader: (6)

Garage List
2011 E92 M3  [4.80]
2013 BMW X5M  [4.33]
2014 BMW i3  [0.00]
Originally Posted by CSMRX7 View Post
I have to admit that my experiences are very different. A little background, I have over 10,000 laps at my local track, where I was an instructor (which closed last summer ). I have done probably 600 laps in an NA M3 and probably 1100 laps in a SC E90 (575 and 625 kits) on this track. I never had any overheating issues, although our ambient temps way up North are lower than California.

I have been able to do much better laps with the SC. I saw appeciably higher speeds on both the front and back straight with front straight speeds increasing by 30kph on the front straight. The only place I saw any slower times was on the entry to the front straight that was a 2nd gear turn, so traction is an issue here with street tires. On r-compounds this was not a problem, so beyond requiring early braking points I didn't see any deterioration of lap times.
Are you 6MT or DCT? Both of the 600 kit cars I know are DCT. Not sure that has anything to do with it, but just curious. Regardless, I'm glad the intercooled kits are performing well for you guys. I guess there aren't many guys with 535 kits doing many track days. I'd love to hear more from those guys.

OEM M3 GTS Splitter/Wing/Harness Bar/Rear Seat Delete, Ohlin R&T, Brembo BBK, Akrapovic GT4, Alekshop Oil Cooler, ESS Tune/Pulley, Recaro SPG, 18" BBS FI, CAE Shifter, Vorschlag Camber Plates, Bimmerworld Toe-Links/End-Links/Motor Mounts, RD Sport Front Sway, Turner Solid Subframe/Diff Bushings, Awron Gauge.

Last edited by radiantm3; 01-22-2013 at 09:56 PM.