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S4 and S-03s tire presssure.

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Old 07-14-2002, 04:48 PM
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Default S4 and S-03s tire presssure.

Already tried a search. No definitive answers. If you have stock size (225/45/17) what pressures are you running? Trying 38f/36r, but want to see what others have.
Old 07-14-2002, 04:59 PM
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Default 38 40

that's for street, if i'm running track it would be lower, maybe something like 34 36 or even 32 34 (cold tire pressure)
i'm running stock suspension and 19mm sway, (stasis going on this week!)
higher rear tires presure will help reduce understeering.
Old 07-14-2002, 05:00 PM
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Default I like to run 40f/38r. Depends how your drive...

I am on 235/40, but I use the same pressure when running 225/45.
Old 07-14-2002, 05:14 PM
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40 all around on 235/40/18s. Nice and tight.
Old 07-14-2002, 05:20 PM
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Default 38F, 36R

Tried higher and lower but found 38/36 to be the nicest.

BTW, my car is an Avant, which might matter.
Old 07-14-2002, 05:43 PM
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235/40/17, 38f/38r, on a sedan.
Old 07-14-2002, 05:48 PM
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36F/38R sedan with suspension mods
Old 07-15-2002, 02:54 AM
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Interesting...do you have a link to the suspension mods?
Old 07-15-2002, 03:36 AM
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Default susp

KW V2 coilovers
- rebound 25% from soft (F), 40% from soft (R)
- 25.75" F, 25.5" R ride height from fender lip

Neuspeed 19mm rear swaybar on stiff

CPP adj. links
- Camber -1.5, Caster 6.5, Toe .08 (F)
- Camber -1.5, Toe 0 (R)

for track use I increase the front camber to -2.5, set rear toe to 0.08 and drop the tire pressures depending on ambient conditions but always keep the rears +2psi more than the fronts.

Mild understeer going into and mid corner. Neutral attitude (4 wheel drift) during corner exit.
Old 07-15-2002, 04:43 AM
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Default Very cool, how long did it take you to get it dialed in the way you like it?

I assume you make your way to the track a fair amount?

-st


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