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Old 05-12-2017, 06:31 AM   #1
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NASA TT4 prep. Estimates of current hp needed

I'm trying to fit my car into a NASA TT class. I'm trying to estimate my power to weight. I'm currently running headers, cat deletes, aftermarket pipes, and an underdrive pulley. Is anyone running a similar setup? Any ideas what kind of wheel hp I can expect?

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Old 05-12-2017, 08:32 PM   #2
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What year/motor is your car?

If its a 97-99 2.5L engine, then I'd think that you should see around 190-195hp at the rear wheels.
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Old 05-13-2017, 11:29 AM   #3
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Quote:
Originally Posted by thstone View Post
What year/motor is your car?

If its a 97-99 2.5L engine, then I'd think that you should see around 190-195hp at the rear wheels.
Yep, 2.5 thanks.
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Old 05-14-2017, 07:17 AM   #4
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Aren't you going to have to get a dyno test to turn in on your book?
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Old 05-14-2017, 10:33 AM   #5
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Aren't you going to have to get a dyno test to turn in on your book?
Sure am, I'm trying to see how close I'll be though before I pull anymore weight. It seems like the Boxster is a pretty good TT4 fit.
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