Thread: GTP Build. Sub 13 Second 300whp goals!

Goals are to get below 13 seconds and achieve 300whp with this setup. Comments and advice would be greatly appreciated for this build.

Appearence:
Autometer ES Vacuum/Boost, Oil temp, & Oil Pressure in A-Pillar
Autometer DPIC in factory gauge cluster
Autometer Phantom II Volt and Trans Temp guages near shifter
AEM wideband (location TBD)

Performance:
180 degree thermostat
Colder spark plugs
3.4 Modular Pulley system from ZZP
Retuned PCM by ZZP
Cold air intake system
Header/downpipe catted
Stage 1 throttle body ZZP
VS Cam with #90 springs and retainers
Poly Engine mount
Alternator and water pump underdrive pullies


Rebuild:
Replace LIM gasket
Replace 4th gear clutch
Transmission and coolant flush
Replace spark plug wires

Think this is a good setup for sub 13 and 300whp? I'll post pics and the build comes along.

i woudlnt used a canned tune get a dyno or street tune. amd throttle body spacer wont do anything. port your s/c and port you throttle body

Get a street tune and not that mail order tune crap. TB spacers is useless. Make your own intake. Other then that your good.

Edit: to many gauges in my opinion. Go with a wideband, aeroforce scan gauge (you need something to scan at all time) and a oil pressure gauge. The aeroforce will watch a bunch of things for you no need for spears gauges.

No Gen V swap or spray?

Son, I am dissapoint!

Holy spaceship!

Cams aren't a big deal.

Assuming your GP is 97-03, a Gen V swap would use the more efficient Gen V supercharger from an 04-08

Go with an angrier cam, or run 1.7 rockers too.

A custom tune is a must. That will make or break your build.

Dont spend the money on a ported TB, do that yourself, or have someone on the forums do that for much cheaper.

Only need for a TB spacer is to tap it to spray.

Lastly, and most important. DO NOT BUY AN INTAKE SYSTEM. Buy a big ass cone filter, and make your own.

but you wouldnt wanna use a 3.25 then it would be the equivlement of a 3.4

What year is the car? A GenV is the newer Superchargers that come on the 04-08 Grand Prix. It retains less heat and is more efficient a common swap. For example if I was to run a 3.6 pulley it'll be just like running a 3.4 on a gen III (name of the prior generations SC)


I prefer to stick with the basics when it comes to gauges since the Aeroforce can be cycled. Only the major things like of course a WB and oil pressure I keep separate.

Uhh I been ninja'd

Because it's 200-300 for an intake.

You can spend $65 and get yourself the exact same filter, intake tubing and have the same results.

A expensive intake on these cars are rather pointless you'll see about the same gains from throwing a intake at the end of the TB or get fancy and use some PVC tubing with a slight bend.


On other platforms a nice intake can make a huge difference. On our grocery getter not so much

well a 3.4 on a gen v is the same as a 3.25 on a gen 3. and you need to mod the lim and a plate adapter for the throttle body

3.4 on a Gen V setup. 3.25 on a Gen III with those mods listed and a good tune. Best bet it to get a 3.4, tune for that, then drop pullies later on down the road.


Search for the Gen V swap threads. You'll either need to machine your Gen III lower intake, or get a Gen V intake (usually sold with the blower)