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I have to pile on the love fest for this course design. It was really fun to drive and diabolically difficult to figure out (at least for me). I couldn’t get an error free run once on it.
Thanks for the detailed replied. I have been ruminating on it for a week. I really like the stiff ride of the 335i, so I am a little wary about going to non-RFT’s now. I suppose I could swap out the control arms to make up for it, but that might bump me up a class in AutoX. I am not too sure what that would do to my extended warranty coverage either.
There was a good article in one of BMW auto parts magazines in the past year that covered and entire 335i to M suspension swap. It’s supposed to be pretty easy to interchange those parts. Did you swap out only the control arms,or did you do the sway bars as well?
[quote] The newer BMW non-M suspensions are tuned for the stiffer sidewall run flat tires. They do that by softening up the bushings on the control arms (wishbones and tie rods). Soon after I bought the car I changed from the stock 135i control arms to the M control arms. The ride got noticeably harsher. Then when the RFT were toast, I went to regular tires. The ride returned back to before I swapped out the original control arms. The difference was that the stiffer control arm bushings provided a better feel and less slop in cornering. You would be surprised how soft the stock bushings are to make up for the RFT.
You can use either RFT or regular tires. If you go with regular tires you should get a mobility kit like they have on the M cars (as they have regular tires and do not have a spare).[/quote]
Nice bit of coding. It is quite useful as a visual comparison against the rest of the field. Now I can graphically see how much slower I am in both real and adjusted times.
Blech…scratch my previous comment about it being wear from AutoX/Tracking. I took a good look at my tires in the sunlight…it’s uneven wear all right. Probably from mis-alignment. Damn new San Francisco garage door is too narrow, and I have bumped the edge a few times. My front wheel is almost certainly out of alignment.
For those of use running stock run-flats on E90’s, what tire would you recommend changing to? I am perfectly fine with going to non-run flats, but I have heard, apocryphally, that E90 suspensions are tuned for the stiffer run-flats. Is there someting intrinsic to the stock E90 wheels that will only accept run-flat tires?
I have 17k miles on my tires, well above the wear bars, but the BMW service techs are starting to harangue me about wear on the outer edge of the tires, suspecting misaligned camber. I actually think it is wear from 5 auto crosses and a couple of track days.
As a newbie last year (and this year), I would say that the Car Control Clinic is nearly mandatory before hitting the Autocross course. You’ll get a lot more out of your AutoX if you have some fundamentals behind you. Before I had even heard of auto cross, I was taken to a mini-Auto cross event at Infineon for my bachelor party, and while wildly fun, I really didn’t know what I was doing and had no idea of how to improve my times.
I am not too sure how to edit tracks on Forza, but on Forza 2, some of the really tight, fictional infield test tracks, like Diamondback, offer a lot of tight turns as oppose to long sweeping turns on the other tracks. The thing about Forza is that there isn’t a slalom element. I;ve been playing Forza III, and Dirt III (rally).
Do you have a recommendation for a racing wheel and a mount? I have been thinking about getting one. My racing sim buddies are pushing me into F1, and I am getting burnt out on driving with thumb sticks.
