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Discussion Starter #1 (Edited)
Or any of you guys in the 6 -7 sec. range
What tire pressure are you guys running? Anyone ever heard of running 4 - 4 1/2 lbs?
 

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we run 7-7.5 on m/t 33x16.5x15 stiffs
 

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I have heard of some that low (4-4.5) but most of the guys I know are in the 5.5-7 range depending on track conditions.
 

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Hoosier, 34.5 x 17 x 16, 6.00 psi.

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We do not have a pro mod, however with a stiff wall tire in most cases you need to run 6lbs of air and up. We run the good year 2078's on our 7 second beretta and I usually run 7-9lbs. Anything less and it will shake like no other. On the other hand a soft sidewall in most cases are designed to wrinkle and work with 4-6lbs of air.

Really it depends the car. and tire design.
 

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Pro mod team i used to crew with we were 5-5.5
 

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I run 6.25 on a loose track and 6.5 on a tight one !!!
 

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6.0 with MT 33x16.5 on 15x15 rim with bead locks
 

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The team I was on in Alaska, we ran 6-7 depending on how the track and weather was, or how old the tires were..........
 

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4 to 5 is not that uncommon on dragsters espically hardtail ones
 

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Alot depended on whether we were on beadlocks or liner rims. Screw blower promod anywhere from 5.5 to 7.5. This is all using 36 in Hoosiers.
 

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5.75 - 6.25 depending on track conditions - 33 x 16 Hoosier on 15 x 15 Weld beadlocks
 

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Too many factors to make a determination without the facts, i'll run 6.5 on an average track and 7 to 7.25 on a real sticky one:smt067
 
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