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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster Racing Forum
NASA TT4 prep. Estimates of current hp needed

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05-12-2017, 07:31 AM	#1
truegearhead Registered User Join Date: Jul 2011 Location: Richmond, VA (The Fan) Posts: 978	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? __________________ 1997 Boxster 4.2L Audi V8 Bi-Turbo 2003 911 C2 NASA HPDE Instructor

05-12-2017, 09:32 PM	#2
thstone Certified Boxster Addict Join Date: Nov 2010 Location: Los Angeles Posts: 7,669	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. __________________ 1999 996 C2 - sold - bought back - sold for more 1997 Spec Boxster BSR #254 1979 911 SC POC Licensed DE/TT Instructor

Old

05-13-2017, 12:29 PM

#3

truegearhead

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Location: Richmond, VA (The Fan)

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Quote:

Originally Posted by thstone

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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.

Yep, 2.5 thanks.

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Old

05-14-2017, 08:17 AM

#4

jsceash

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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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* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust

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05-14-2017, 11:33 AM

#5

truegearhead

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Location: Richmond, VA (The Fan)

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Quote:

Originally Posted by jsceash

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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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