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NASA TT Question

Old 12-18-16, 04:35 PM
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NASA TT Question

Looking to get into Nasa Time Trials when I make it out to Texas come June of 2017. I've been reviewing the rules for TT1-3 and I don't see any mention of restrictions on Aero (other than and correct me if i'm wrong, aero can't stick out farther than 6" from the widest part of the body and wings can not be higher than 8" from the top of the roof line), brakes and engine modifications.

So are aero, brakes and engine mods open? Does it really just come down to your power to weight, then points modifications for being a rotary and then whatever tire size I decide to run?

2016 Rules for quick reference
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Old 12-18-16, 06:13 PM
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the TT1-4 grouping is new to match the ST1-4 group. which is nice as the car will be legal for both classes.

the new ST/TT rule set is much simpler than the old PT/TT rule set. its literally just hp/weight with a max tire size. other than that, you can run anything.
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Old 12-18-16, 08:12 PM
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It's also average HP and not peak correct?

the points calculator also seems to be updated as well.
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Old 12-18-16, 09:34 PM
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Originally Posted by briansfd View Post
It's also average HP and not peak correct?

the points calculator also seems to be updated as well.
i haven't looked yet but yeah they take 3-4 RPM points and come up with a hp number.

part of this new class is less work for the guys running it. in the old PT class you could opt for a dyno reclass. you would send them a list of mods, or five, and they would give you max hp and minimum weight.

we'd take the 5 sheets and then build the car so it had the max hp for as much RPM band as possible.

this new class skips all the work the reclassing caused, and then presumably makes the HP thing more fair too.
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