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Topic Review (Newest First)
08-19-2009 01:46 AM
MVent 30 psi in the front and 35 psi in the back for the time in my sig.

But, if you're just going to run it once it doesn't matter at all cuz you're just going to stink up the place.

EDIT: Just noticed the original post date. Why did this even get brought back up?
08-19-2009 12:51 AM
djblackout ive got my 215/40/17's @ 50psi. full KW suspension with focus sport stress bar and strut bars and bla bla bla list goes on.

i hook very well
08-01-2009 10:35 PM
ChillinZX I've set mine to 25psi in the front (don't care about the rear) and hooked real good out of the hole.
06-19-2009 10:54 PM
ffwturbo It does help to lower your tire pressure but not to the point where it will endanger your high speeds at the top end. I lower my street tires to 20 PSI and have been fine. But I also have a 40 tire rather than the 45 stock SVT tire. My tire is a harder tire vs the 45. for sure stock air pressure will not help launch.
05-13-2009 10:13 AM
djo90 no th temp will be in the 50's I have thhem at suggested 32F 29R
05-13-2009 06:14 AM
focusmaniaczx3 gah i was trying to go to sleep and i might have been out for 10 minutes and my sister calls and wakes me up. my brother in law backed over their puppy on the way to work this morning. lol i hated the menace anyway, and i told her that for waking me up.

suggested tire psi varies from tire to tire. my 00 ranger has mustang wheels on it and the tires suggest 52psi. the tires on my focus suggest 35 with a max of 50. most regular tires with average size sidewalls have a max suggested psi of around 30-35. rim tires are usually higher.

i also had a senior moment earlier and would like to apologise for being arguementative (if thats even a word). lowering the psi to around 20-25 on rims might get a slightly better launch. might shave .05 seconds off your 60ft time. a common misconception is that the lower you can get the psi the better the tires will grip. this is true... on ice.
05-13-2009 05:38 AM
djblackout what psi should the SVT's be at? the dude has them @ 50
05-13-2009 04:45 AM
focusmaniaczx3 eh er uh no. rim tires + low PSI does not = hook up and go. that equals wear the outside edges of the tire and possibly some rim and lots of spinning.
10psi slicks yes! rims no!
05-13-2009 04:28 AM
Originally Posted by djo90 View Post
I'm racing Friday night. I'm gonna prep my car before, I've heard you can launch better with less tire psi, if this is true, what should I drop it to? I't on a SVT focus with 215/45/17 BFG Gforce sports temp will prolly be in the low 50's
05-13-2009 02:48 AM
focusmaniaczx3 no worries m8! we all started somewhere and its kinda hard to learn without asking some questions! glad to help
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