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You ran a Forester? We have a 2.5X (2002? - First year of the new look) and it's an awesome dirt road car, and just a blast in the snow. I've often thought about autocrossing it. It's soft and slow, but still FUN. Is yours auto or manual? How did it feel on those sticky tires?


-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results
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Originally posted by moxnix:
Originally posted by Kremithefrog:
If you're not comfortable with oversteer, than don't do it.




I drive a miata a good bit. I know oversteer. I am comfortable with it. Either lower or higher pressures in the rear can give you oversteer. I prefer the oversteer you get with lower pressures in the rear (running 44F/42R on RA1's on the Protege) I ran 40/39 on 15" Azenis on the forester and I run close to the on the proteges with the azenis (15X7 wheels with 205/50/15 Azenis)



That was a blanket statement, didn't imply that you're not.
To get oversteer with lower tire pressure, wouldn't that cause a good bit of rollover on the tires? To get oversteer with a stock FWD (i.e. no big rear sway bar,etc.) you're going to have to cause the rear tires to lose some traction. That would be the point of pumping the rears up. To lose traction by lowering pressure, I would think you'd have to go lower than you are. But I reckon it depends on the car and tires.
In general, raising the rear pressure causes the oversteer that is desireable in autox.


98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15
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We actually stole my GF's mom's 1999 forester for the subaru challenge (don't worry we let her mom drive it there also)

I got 5th out of 11 in STS With it (wheels and short shifter put it there)
http://www.subaruchallenge.com/105.Final.htm

That day was the first and so far only time we ran it and it was a good bit of fun.

We have a set of wheels for the protege that are dual bolt pattern that fit the proteges (5x114.3) and the forester (5x100) so we tossed them on there since she was already in STS because of the short shifter.

It is suprisingly netural to drive and with my setup had a little bit of oversteer at just the right points.

Kremithefrog - I disagree with you in what oversteer is desireable in autox.

The rear tires can lose grip without as much rollover as you think because they are not taking of much force as the front tires are. The front tires need pressure to prevent them from rolling over on the sidewalls when you turn but the rears are not under as much turning force so do not need as much to stop from rolling over.

Yes most FWD cars need a little more difference in the pressures than I run. Like Auto-X-Fil posted try 45F/35R and see how it goes.

Kremit I think you should do a little research on the SCCA forums about rear tire pressures and oversteer. Yes both lower and higher work for AutoX but they have different breakaway characteristics and differnt people/cars find different ones work better for their driving style and car.


Beaten - 2003 MazdaSpeed Protege 29K <- broken hearted Daily/Weekend Beater - 1990 miata 138K - AutoX every weekend = Adult driven on weekends
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Wow, SM was huge at that event! Lots of turbo cars with boost control, probably, huh? Especially likely since you beat half of them in the Forester. Glad to hear the Forester is fun! I haven't had to take anything but the Contour yet, but when I do it's either that, a 2004 Passat 1.8T auto, or a 1993 M-B 190E auto. Lindsey is a little picky about me racing her car, so even though the M-B is my first choice it might have to be the Subie. The specs are actually the same hp/tq, displacement and weight as the stock 'tour!


-Philip Maynard '95 Contour [71 STS | Track Whore] '97 Miata [71 ES | Boulevard Pimp] 2006 autocross results
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Originally posted by moxnix:

Yes most FWD cars need a little more difference in the pressures than I run. Like Auto-X-Fil posted try 45F/35R and see how it goes.

Kremit I think you should do a little research on the SCCA forums about rear tire pressures and oversteer. Yes both lower and higher work for AutoX but they have different breakaway characteristics and differnt people/cars find different ones work better for their driving style and car.



I know what you're saying and I don't really disagree with it. Like I said, do what works for your particular car, tires, and driving style. I was saying what works for me and many others. I know running 45/35 would not work for me. I don't know if having less power/less weight plays into it or not, but I do have a zetec and less weight than stock.


98.5 SVT 91 Escort GT (almost sold) 96 ATX Zetec (i brake to watch you swerve) FS: SVT rear sway bar WTB: Very cheap beater CEG Dragon Run - October 13-15
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