GTO build : Cams ?
Car is an auto, it will not be a daily driver.
I do not care about dyno numbers at all, I want the car to run well on the street and at the track.
I will not go larger then a 3600 stall, probably go with a Vig 3600 because I do not want to be scraping pieces of the IRS off the ground. This is my tentative plan:
Vig 3600 (underrated, probably will flash to ~ 3900)
Tranny cooler / shift kit
Headers (Kooks?)
Pulley
Cold air w/ throttle body
Cam
75 Shot
Tuning
Thats it. I would like to keep the stock cat back to keep the car quiet, perhaps a cut-out would work.
As far as a cam, the car will weigh a tad over 3800 with me in it. I was thinking something like the Magic Stick is too big, but the normal old school stuff like Thunder 224 or T1 is too small. Any good suggestions for something in the middle?
I would like the car to run 12.6s on motor, and have a chance to dip into the 11s on spray....
Cam & header advice ?
If you're at 13.6 and adding the bolt-on mods described (and hopefully drag radials) you won't need a big cam to acheive 12.6.
FWIW, a Vig 3600 is likely to stall over 4000.
If you're at 13.6 and adding the bolt-on mods described (and hopefully drag radials) you won't need a big cam to acheive 12.6.
FWIW, a Vig 3600 is likely to stall over 4000.
I'm on the fence with the convertor. A smaller Vig 3200 would probably work better especially with a small shot. Will the convertor flash much higher then it would in an FBody because of the weight? I was thinking the GTO's gears (3.47?) would keep the convertor a little tighter as opposed to my old Formula's 3.23s. The stock cat-back on the GTO is supposed to be pretty efficient....
Up front you can hear the headers and valve springs, but running down the track or street it's nice and quiet from behind. Sounds good in the car though. Didn't lose any performance on the 1/4, actually gained a tenth on my best run and the DA was the same or higher that day.
On the camshaft side, I went with a custom grind by EDC.
Last edited by GTO_Scott; Sep 4, 2005 at 12:57 PM.


