What's the most HP I can get out of a GT? After all Mods.

[JoeJoe231455]

I would either put 4g's together and purchase this -

http://www.zzperformance.com/zzp/pro...gal_sc_kit.htm

along with headers and a catback

or purchase this

http://www.nitrousexpress.com/ART/pr.../StageOneL.png

along with headers and a catback

fyi - the dynomax catback is pretty much a stock exhaust system with super turbo mufflers...stay away.

[1990v6z24]

The fastest naturally aspirated GT in North America is owned by Wes Blair and runs a 13.352 quarter mile.

[1990v6z24]

I don't know about HP tho.

[Brandon Budd]

Wes Blair does not have the fastest GT, Vanessa (insert last name here cuz i dont know it) has the fastest GT I thought? But she had to have a modifiyed 3.8 that was turned into a 4.1 liter.

[1990v6z24]

He has the fastest naturally aspirated, she may have added a turbo or supercharger.

[The Burning Rom]

I thought she had a Monte. Either way..whatever car she has does have the prototype stroker kit in it, IIRC.

[GTPCatz]

Originally Posted by kilroypr

I have a GTP and now what you mean people, but aslo have a Z-34 for which there is nothing and you know there is nothing to enhance it.
SO without modifying the engine internals added a bigger fuel pump, bigger injectors and opened the intake a little(got rid of the box) and the car improved like 15 hp.
And the investement did not reached $450.00

ADDING A BIGGER FUEL PUMP AND INJECTORS WON'T DO CRAP!

Stock injectors are fine....They will not be maxed out unless you are heavily moddified

adding more fuel to an engine will just slow it down if it is not needed.

[Brandon Budd]

No Vanessa has a black gt I seen it when I was picking up and engine at zooomers shop.

[kilroypr]

Originally Posted by GTPCatz

ADDING A BIGGER FUEL PUMP AND INJECTORS WON'T DO CRAP!

Stock injectors are fine....They will not be maxed out unless you are heavily moddified

adding more fuel to an engine will just slow it down if it is not needed.

You are correct(If the fuel volume pumped on the injector open cycle is a little more and no additional air flows in).
GP VIN 1 vehicles are equiped with a higher PSI/VOLUME fuel pump than VIN K because they get more air in the combustion chamber by means of the SC.
But if you install a higher VOLUME/PSI fuel pump and wider mouth injectors on N/A vechicle more fuel will flow in the combustion chamber even tought the injector open cycle time stays the same. Now if the higher VOLUME/PSI and wider mouth injectors are installed then more air has to flow in by means of a less restrictive pasage, cooler air(denser air) or other means into the combustion chamber(Cone Air Filter Maybe) so the higher fuel amount has enough air to burn effectively and therefore get a little more power.
What I installed on my Z-34 did not gave me ~35 to ~50 hp increase. Just a modest ~5.

Thanks for your comment.

[GTPKLR]

who makes the stroker kit for the 3.8 and how much $$$$$ are we talking?

[kilroypr]

GTPKLR: Send a PM Message to Ripn12s or The Burning Rom or even GTPCatz. They are verse on parts like that and costs.
Usually there are sites like www.3800performance.com that might have the parts you need

[Ripn12s]

ZZP is coming out with the stroker kit

[98GPGT]

I have a 98 GT (obviously by the name) and I've looked into gp mods pretty heavily. And the L67 swap is your best call. There are so many possibilites for the l67 than the 36. It has all the same mods and more. Plus its a 40 hp gain for anywhere from 700-2000 bucks, depending on where u get the motor and if u install it urself. Plus not having the P on the side of ur car will make it a nice sleeper.

[Lastweak]

ZZP has a kit out to "take your daily drivin L36 into the 14's" now it's only 600 bucks now is it too good to be true? or will this kit preform?

[bcreverend]

it all depends on howmuch money you want to pay...here is my research so far, since i have a gt as well...

Naturally aspirated
Rocker Arms (ZZP): +15 hp $350
High Velocity Throttle Body (ZZP): +7 hp $180
Reprogramed PCM (ZZP or PFYC) +20 hp $295
GT2 Cam (ZZP): +30 hp $300
Fender Wall Intake: +15-20hp $varies
Total + 87-92 hp $ 1100-1200 (rounded)

Bolt on Centerfuga SuperCharger Kit (ZZP):
Stage 1: +60-79 hp $3149
Stage 2: +80-90 hp $3499
Stage 3: +100 hp $3899
Stage 4: +285 hp $4899

Various Nitrous Systems can be added for varying hp gains and prices
Zex (PFYC): 75 hp $515

L67 swap can be done for about $1000-$1200 through ebay if you get the auction at the right time (this includes a whole engine and the tranny)