 Autocross tire pressures, Going to my first autocross on Saturday |
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| ken914 |
 May 19 2005, 01:33 PM
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#1
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Whole lot 'O 914/6  Group: Members Posts: 157 Joined: 15-November 04 From: Mount Pleasant, SC Member No.: 3,122  |
I am going to run my 914/6 in my first autocross this saturday. Everyone in racing seems obsessed with tire pressures. I have no idea where I should set them or if they should be set hot or cold.
Can anyone please explain the pressure obsession to me so that I can be equally neurotic. Thanks! |
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| xsboost90 |
May 19 2005, 01:52 PM
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Senior Member Group: Members Posts: 1,393 Joined: 2-August 04 From: cincinnati Member No.: 2,432 |
now i havent experienced much w/ the teener yet, but w/ my 944's and slicks more so than street tires, adjusting tire pressures can really help keep control of the car, which makes for better times. A tire w/ less pressure has more traction than one w/ more pressure, due to more tire making contact w/ the pavement. If the car is understeering, or pushing the front end into the corner, taking some pressure out of the front or adding to the rear can correct this. If the tail is whipping out alot-oversteer- then taking some from the rear or adding to the front can make a difference. THis is of course w/ a semi balanced car. I usually start out by making sure all the tires are equal amt pressures the first run. Say, 35psi-now this is just me here...make your first run, just try to stay smooth, but you can test you boundaries alittle in some tight corners and really stick it into the apex. See if she pushes or slides out. Adjust from there. You have to find your own happy place though. (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)
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Posts in this topic
ken914 Autocross tire pressures May 19 2005, 01:33 PM
jdogg What are you running for tires? My Kumho Victorace... May 19 2005, 01:51 PM Joe Ricard Dude what kina tiars?
What size a Tiar
How wide t... May 19 2005, 01:55 PM anthony Ken, I'm going to assume you are talking about... May 19 2005, 01:59 PM jdogg I see you are in Mount Pleasant, SC. I am geograp... May 19 2005, 01:59 PM Dave-O I'll ask the same question people asked me a y... May 19 2005, 02:02 PM ken914 Thanks for all the input.
The car is a /6 with a... May 19 2005, 02:42 PM URY914 Just for a point of referance,
I run 16 pounds in... May 19 2005, 03:14 PM messix nothing beats tuning tire pressures with a infared... May 19 2005, 06:01 PM messix p.s - use lap times as a refence not the way it fe... May 19 2005, 06:06 PM SirAndy May 19 2005, 06:09 PM xsboost90 you said your running 285 40 15's, any idea wh... May 19 2005, 06:22 PM SirAndy May 19 2005, 06:47 PM J P Stein There is an ideal pressure for max grip from every... May 19 2005, 08:44 PM nebreitling my 02:
for your first AX, set the pressures where... May 19 2005, 11:56 PM
sean_v8_914 Falken Azenis 205 50 15. I start at 25 psi cold. a... May 20 2005, 01:59 AM |
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