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2000 grand prix GTP on the road to 400 hp

G

GRIZZLY505

New member
i have a stock gtp and i want to at least push about close to 400 hp and i was thinking about getting new pulleys for the supercharger headers and better exhaust flow, air intake and maybe a chip any other suggestions?
 


Better rethink your goal... Making 400hp on a SC is going to be hard better look at Turbos and E85

And then factor in $3k* your going to spend on a trans to hold that power.
 
GRIZZLY505 said:
i have a stock gtp and i want to at least push about close to 400 hp and i was thinking about getting new pulleys for the supercharger headers and better exhaust flow, air intake and maybe a chip any other suggestions?
Click to expand...



Yeah a helmet and some googles


VYgEDnZ_zps150f5809.gif
 


GRIZZLY505 said:
i have a stock gtp and i want to at least push about close to 400 hp and i was thinking about getting new pulleys for the supercharger headers and better exhaust flow, air intake and maybe a chip any other suggestions?
Click to expand...

1 pulley for the supercharger, headers, intake, and a proper tune would probably have you close to 220whp.
 
nobody ever asks this but are looking for 400 Crank hp or 400whp? big difference between the two. 400chp is easier to get then 400whp.
 


Why 400hp??

To really make that power with a S/C you're going to need a bigger more efficient setup, or absolutely max out a Gen V. Think more along the lines of excessively ported heads, matched LIM, headers and betterflowing cat-back, tiny ass pulley, E85, Intercooler, nasty cam setup to max out those heads, firehose fuel injectors, big ass maf and one hell of a tune.

And a 3K transmission.

Then you might be 400WHP.

Or slap a turbo setup on it and be done with it.
 
machinegunsquid said:
Why 400hp??

To really make that power with a S/C you're going to need a bigger more efficient setup, or absolutely max out a Gen V. Think more along the lines of excessively ported heads, matched LIM, headers and betterflowing cat-back, tiny ass pulley, E85, Intercooler, nasty cam setup to max out those heads, firehose fuel injectors, big ass maf and one hell of a tune.

And a 3K transmission.

Then you might be 400WHP.

Or slap a turbo setup on it and be done with it.
Click to expand...

Idk... I made ~450hp at the crank with a smaller roots blower.
And I did it on stock heads without an intercooler :)
 
xpz cam, zzp/intense stage 3 heads, gen v on a 2.6, e85, headers, 3" exhaust, 75mm tb, with a jesus christ tune, and you will be pretty close
 


machinegunsquid said:
What was the setup, and what was the dyno corrected to?
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TVS1320 with a 2.8 pulley (saw 12psi on the dyno with an open downpipe, should have run a 2.6 pulley to see ~14-15psi where the TVS likes to run), XP cam, 105# springs, SSAC headers, N* TB, 60# injectors, e60 ethanol, walbro255 pump, and I tuned it.
372whp corrected
374whp uncorrected (actual reading)
 
machinegunsquid said:
Why 400hp??

To really make that power with a S/C you're going to need a bigger more efficient setup, or absolutely max out a Gen V. Think more along the lines of excessively ported heads, matched LIM, headers and betterflowing cat-back, tiny ass pulley, E85, Intercooler, nasty cam setup to max out those heads, firehose fuel injectors, big ass maf and one hell of a tune.

And a 3K transmission.

Then you might be 400WHP.
Click to expand...

SWEET. Its only an hour drive to get E85!
 
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