Compare 1/4 times for same setups

Posted by: vmschumacher

Compare 1/4 times for same setups - 07/11/05 03:15 PM

I have a 00 gtp with 3.25 sc pulley, NGK plugs, Taylor wires, DHP PCM, HushpowerII catback, transcooler, CAI.
What should I be running at the 1/4?

When I had my 97 gtp, all I did was plugs, wires, catback, ram air (headlight rig up) and a 3.4 pulley and I ran a 13.99. (it was about 50 degrees out)
Posted by: GTPADAM

Re: Compare 1/4 times for same setups - 07/11/05 03:34 PM

You should not be running a 3.25" pulley with those mods. Have you checked your KR. I bet it's through the roof. You would go slower with the 3.25 if you have a lot of KR vs a 3.4 with no KR. Just my 02 centz.


01 GTP - 3.4",DHP PCM, Dynomax w/U-Bend removed, Wizaired CAI, NGK TR6 Spark Plugs good for a 14.0 in 1/4 mile.
Posted by: HercMan(Rob)

Re: Compare 1/4 times for same setups - 07/11/05 04:43 PM

Your gonna need some more KR reducing mods. Like a drilled 180 Tstat or a 160 tstat, one to two range colder plugs what about that Ubend is it still in? If so then have that removed and there's probably a couple more I'm forgeting. But I'd get it scanned to see just what kind of KR you are getting. I'm with adam I'll bet your power would be better with a 3.4 on instead of that 3.25 with your current mods.
Posted by: AustinGTP

Re: Compare 1/4 times for same setups - 07/11/05 06:23 PM

D/P, do you still have the stock D/P?
Man, you got some work to do to run a 3.25.
I'd get the plugs, T-stat, U-bend delete, and 3" D/P.
Will stock internal parts (cam/rockers/etc...) be okay with a 3.25" pulley, or will he need to work on those too?
And by the way, welcome!
Posted by: vmschumacher

Re: Compare 1/4 times for same setups - 07/11/05 06:54 PM

I am running ngk tr55? plugs i think and I still have the same d/p but took out the ubend and the exhaust is very free flowing, the muffler replaced the resonator. 2.5 inch past cat. I am running a 180 therm. but what do you mean drilled?
Posted by: vmschumacher

Re: Compare 1/4 times for same setups - 07/11/05 06:55 PM

I am also getting water injection later this year.
Posted by: AustinGTP

Re: Compare 1/4 times for same setups - 07/11/05 07:34 PM

If you've still got the stock D/P, your exhaust isn't very free flowing at all.
Get a 3" D/P and you'll notice a huge difference.
Posted by: HercMan(Rob)

Re: Compare 1/4 times for same setups - 07/11/05 07:39 PM

drilled means drill four holes about 1/8 inch in diameter evenly spaced to allow a small amount of coolant to flow while the tstat is closed. This helps to prevent hot spots and temp spikes.
Posted by: Kwik Wun

Re: Compare 1/4 times for same setups - 07/11/05 09:17 PM

Yea, I know I had a lot of KR before I put my cam in... my fastest 1/8 time was 8.85 ..

I think that translates to like 13.71 or something