how much air pressure

Old 06-11-2008, 04:52 PM
  #1  
vega34
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Default how much air pressure

how much air pressure do you guy's run,its a 77 vega wagon,weigh 2600,tire size 29/12/15's,i ran last friday and put 9-1/2 pounds and i thought i spun so did my friend watching,didn't hook good,maybe around 8?,,,thanks steve
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Old 06-11-2008, 06:21 PM
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GotSomeRust
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I run 9 1/2 in my 83 cutlass. It plants pretty hard. I don't see myself ever going lower than 9. Are your tires getting warmed up in the box? What kind of compound are you running?
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Old 06-11-2008, 07:33 PM
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dak697
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If you can, Video tape the rear tires. Then play it back frame by frame to get the best results. I know from experience that it helps a ton. When we changed tire mfg's If was able to run way more air.
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Old 06-12-2008, 02:20 AM
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us7race
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If they are slicks (not DOT's) I think I'd start at 8psi go up 1/2 pound each pass until you get the best 60' But you will need to keep the Launch RPM. I run 9psi most of the time but on a slick track 8.5 works better..
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Old 06-12-2008, 02:40 AM
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vega34
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thanks,,there hoosiers do6 slicks,,,steve
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Old 06-12-2008, 06:54 AM
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john858
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you guys might think i'm crazy buy i run 10.3/4's in my 1432's , i talked to some tire guys & was told to run as much as possible.if the tire balls up when you leave you don't have enough air.add air until it doesn't ball up & then add 1/2lb until you lose 60' then back it down a 1/2lb.jmo.good luck
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Old 06-12-2008, 09:52 AM
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vega34
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a guy took a picture of my tire when i left the line,my tire did not wringle at all,thats the reason i thought i had to much air in the tire,i dunno,,,steve
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Old 06-12-2008, 10:33 AM
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kw89425
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i dont see alot of wrinckle in that s 10 standing on its ass
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Old 06-12-2008, 11:07 AM
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then i try the 8lb's go up from there if needed,good luck
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Old 06-20-2008, 04:04 AM
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vega34
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i ran 9.5 in the tires and pulled the front about 14" my friend said,so that might be about right,,thanks steve
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