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      10-07-2008, 07:11 PM   #4
jgalaxy's Avatar

Drives: E46 M3
Join Date: Oct 2006
Location: Montreal

iTrader: (3)

Originally Posted by arter View Post
Great day, ran HPDE class 2 with my E90 335Xi. First time running this car on a race track and also first time running with my JB3 tune. Still had the factory runflats on, not bad but the car under-steered and could use something bigger than 225's up front. I am probably going to a square set-up with 245's all around. Brakes were surprisingly good. Oil temp only hit 250
( have factory oil cooler) but temperature only in 40-50's so maybe not a hard challenge.

The JB3 gave me all the power I could use, hit 135 in the back straight and 124 in the front, unfortunately I was sliding more than I would like on the turns.
Still working on my driving skills......

JB3 gives this car more power than the M3's present ( although modded Corvettes are a different matter).

Very pleasantly surprised by this car.
I was running a show wheel/tire setup. Simply aweful for the track (265/30/19 & 235/35/19 on GY F1 GS-D3 for track). I went to a square setup on 17's, 245/40/17 and was bloody happy. Dunlop Dirrezza Z1 SS. F'n awesome. Understeer was almost gone. Tried dropping pressure up front a pound or so to no avail, but will try to adjust with the KWv3 stiffness next event - which is Oct 25/26 at Watkins Glen. So friggin close on the balance - Not sure which way to go. Softer setting up front or Softer in the back a click or two.
"Our enemies are innovative and resourceful, and so are we. They never stop thinking
about new ways to harm our country and our people, and neither do we." - George W