Well many of you know that I recently bought a 1998 Grand Prix GTP 4-Dr with 74,000 miles on it as my new daily driver. When I bought the car it was totally bone stock….even down to the original spark plug wires (which had to be replaced within 30 mins of owning the car…Thanks to the help of “scottydoggs”). Well long story short I had planned on doing some simple flow mods and running a simple 3.4 pulley setup (Headers, 1.9 RR, GenV) but lets face it, that quickly snowballed due to running across a deal on a turbo kit I couldn’t turn down. So the car ended up going from bone stock to a full blown cammed turbo build thanks to the help of Jason “hitman92499”, the peer pressure of Bill “no name required”, and for Brian “Swiggles” who called dibs on supervisor during the build process.
Now that the back story is out of the way it’s time for the reason of the post. I’m going to have the car up on the dyno this next week and wanted people to chime in on what numbers you think it will put down on low boost and what it will be on high boost.
Mod List:
Cartuning Turbo Kit w/PT61 Turbo
Cartuning Intercooler Kit
Stattama ST2
L26 Intake
Crow Cam 105#
Manley Retainers
Racetronix Fuel Pump
60# Injectors
NGK TR6 spark plugs
180 t-stat
Stock exhaust manifold
Stock cat-back
Everything else stock unless specified
Dyno will be done on 2 different settings and will be done with 93 Octane pump gas:
Low Boost – 9psi-10psi running off WG spring alone
High Boost – Not sure but my guess is going to be 15psi-17psi
Let the guessing begin.
