 Toyo RA1 tire pressure?? |
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| retrotech |
 Oct 18 2005, 09:18 PM
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#1
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retrotech  Group: Members Posts: 470 Joined: 2-November 03 From: Mosier, Oregon Member No.: 1,302  |
Any recomendation for track, tire pressure for the Toyo RA1?
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| gregrobbins |
Oct 18 2005, 10:33 PM
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#2
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Member: Team NARP Group: Members Posts: 1,515 Joined: 23-March 04 From: Arizona Member No.: 1,844 Region Association: Southwest Region |
Depends on the temperature. Put some white shoe polish on you sidewall by the arrow. Make a run to get some heat in the tires and see where you are in relation to the arrow.
My first autocross was in 90+ degree day and I was running about 27 lbs. Tires worked well. The following weekend we had a night autocross and it was 15 degrees cooler. Car felt like it was on ice as the night cooled down. Those in the "know" were adding a little air through the night. Next time I will know better too. Hook up with a racer in the know who has experience with Toyos. A lot of the AZ PCA guys like the tire as it works well for autocross and track too. Post your experiences. We can all work through these thing. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif) |
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| smg914 |
Oct 19 2005, 10:30 PM
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#3
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Sahara Beige Steve Group: Members Posts: 1,962 Joined: 22-February 04 From: Tampa, FL Member No.: 1,695 Region Association: None  |
I had a discussion with a Toyo engineer who was involved in the design of the RA1. He said that this tires optimal performance is when the tire is at 42 psi hot. On my 914-6 race car with 205-50-15 RA1's I always put them somewhere between 35 and 37 psi cold.
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| retrotech |
Oct 19 2005, 10:51 PM
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#4
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retrotech Group: Members Posts: 470 Joined: 2-November 03 From: Mosier, Oregon Member No.: 1,302 |
Thanks for the reply. Thats just about what I had them [luckily] set at. So I will keep that for now.
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