My opinion (and yours?) on New Posi-Quiet Brake pads and Goodyear F1 235/40/ZR17's - Page 2 - Saturn ION RedLine Forums
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post #11 of 15 (permalink) Old 04-05-2009, 01:38 AM
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I have the F1 GSD3s also. They are way better than the stock Dunlops as far as traction. The only thing I don't like is that they seem to be wearing a little too quick for me. What are you all running for tire pressure in them?

To the orginal poster, is that a picture of your underhood with the polsihed supercharger? Looks nice
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post #12 of 15 (permalink) Old 04-05-2009, 01:54 AM
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Pressure will depend on size, driving habits, and alignment. I'm running the 235/40/17's, alignment slightly more aggressive (more camber, about -1.5* front) than stock - soon to be MUCH more aggressive when I get her set up for autocross (over -2* and more toe out) - and I don't drive hard in a straight line much, but I corner like all hell (every turn is practice...). I run 37-38 in front, 34-35 rear. Harder cornering, more pressure to keep them from rolling under. Normal drivers with this size would run 32-34 front and 29-31 rear.

For "normal" street driving and the stock size (215/45) I would recommend 35-36 psi front and 32-33 or so rear. When I ran the 215's, I kept them at 40-41 front, 36-37 rear for hard cornering (larger tires use lower pressures, narrower ones higher).

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post #13 of 15 (permalink) Old 04-05-2009, 05:59 AM Thread Starter
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Originally Posted by 05RedlineS2 View Post
What are you all running for tire pressure in them?

To the orginal poster, is that a picture of your underhood with the polsihed supercharger? Looks nice

Don't know on tire pressure yet. Whatever they put in when they mounted them. I need to check.

BTW, yes that is my engine.

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post #14 of 15 (permalink) Old 04-05-2009, 04:06 PM
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i run mine 33/34 psi all around. i'm all street driven (i do 38 psi on a track) and i attack curves too.

unfortunately i have to keep the pressures a little lower because of all the potholes and frost heaves in the area.

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post #15 of 15 (permalink) Old 04-05-2009, 04:54 PM
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Well I am running 34 in them. Maybe its just the nature of these tires
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