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Max size turbo in Texas for Outlaw Drag Radial Class?

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Old 05-21-2010, 11:01 AM
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Question Max size turbo in Texas for Outlaw Drag Radial Class?

I've done some research, and it seems mixed. Some say max is 76mm, others say 88mm. Which one is it? Each individual race track website does not specify.

Also, are the sheetmetal intakes allowed? I've seen mixed rules. One says any intake allowed (MIR), another says cast intakes only.

Last edited by fasttagurl; 05-21-2010 at 11:04 AM. Reason: another ?
Old 05-21-2010, 01:37 PM
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Originally Posted by fasttagurl
I've done some research, and it seems mixed. Some say max is 76mm, others say 88mm. Which one is it? Each individual race track website does not specify.

Also, are the sheetmetal intakes allowed? I've seen mixed rules. One says any intake allowed (MIR), another says cast intakes only.
A lot of the Texas True 10.5 guys also run radial classes locally. I'm not sure of any radial class rules but TT5 has an 88 limitation on the turbo and F1R maximum for supercharger. The radial classes should be close if not identical but like I said, I don't know for sure.
Old 05-23-2010, 10:13 PM
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true street = 275 only
76mm or f1r or one plate with specific pill sizes

extreme street = 29.5/10.5 or smaller. one guy runs 275/60s and I think 295 tire is allowed.
88mm or f1r or 2 kits on small blocks

There is also a race that we are frequent at which is outlaw drag radial 5.30 race
heads up closest to 5.30 with no restrictions except 275 tire.

They run TTT5 once a month
There is a radial 5.30 thing at each track once a month so there is alot more 5.30 racing then TTT5.
Just in DFW. There is the same in Houston,Oklahoma,Arkansas, and Lousiana.
Old 05-24-2010, 08:31 AM
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Originally Posted by GueSS Who
true street = 275 only
76mm or f1r or one plate with specific pill sizes

extreme street = 29.5/10.5 or smaller. one guy runs 275/60s and I think 295 tire is allowed.
88mm or f1r or 2 kits on small blocks

There is also a race that we are frequent at which is outlaw drag radial 5.30 race
heads up closest to 5.30 with no restrictions except 275 tire.

They run TTT5 once a month
There is a radial 5.30 thing at each track once a month so there is alot more 5.30 racing then TTT5.
Just in DFW. There is the same in Houston,Oklahoma,Arkansas, and Lousiana.
My friend is interested in the Outlaw Drag Radial Class. Is this the one you mention above with no limits but the tire? I read on one of the dragstrip websites (one in Texas) that had the 88mm turbo rule and a couple of other stipulations. Where do you race at? I believe he's mainly concerned with the DFW tracks. Thx for your help.




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