2004 Pontiac GTO M6
Mods at time of baseline dyno:
K&N Cold Air Intake
MSD wires
Gripforce Stage 2 clutch
18lb Lightweight flywheel

290.6rwhp/304.4rwtq

Added:
Torquer V.2 Camshaft
LS2 Timing chain (Yields no gain of course)
Stock 243 heads from "03" Z06
PAC .650 Beehive springs
Gutted stock convertors
Deleted Rear O2 sensors
Dyno'd to 6500rpms, limiter set @6800rpm

Finals #'s 384.6RWHP/374.0RWTQ

 

Those are some pretty sick numbers on stock mani's.. congrats

 

Thanks, lol I was impressed too. I knew the stock manifolds were going to be a huge limiting factor. There is still a few things with the idle I would like to get tweekd but I need to drive the car some more and see how it acts. The only thing so far is that now my transmission is being real stubborn to shift so I have to check it out.
I have a print out, I didn't wanna take a pic of it and put it on here so hopefully in like the next week he'll email me a graph of it. He was kind of in a hurry to get out, he started at like 1pm and was done around 5pm. Said the did all the stuff on the dyno then drove it a few and got all that stuff right.

One thing I can say - I am not impressed with, is that you can be rolling along in first at whatever speed and stomp it, it will not break traction. Idk I am going to have to fix the shifting problem and take it to the track to see but you would think 90rwhp and 70rwtq would be noticeable on making the car faster but it honestly hard for me to tell. Maybe I've been riding/driving my buddies 464rwhp C5 Z06 too much.

If the numbers at the track are noticeable I'll be happy for now. Once I do brake upgrades & a few suspension mods, I def want more power.

 

Spinning aint winning. Youll likely see a great gain in MPH at the track.

 

Very nice!

 

swap the UD Pulley and you'll be knockin on 400's door

 

First shall be headers and exhaust. Should put me over 400rwhp. Then all the other little goodies.... Need a second job or a sugar momma though lol.

 

oh wow my bad, i didn't realize you don't have exhaust lol. yeah your heads/cam are breathing through a straw right now! some LT's alone might put you past the 400 mark, midpipe and cat-back (or cutout) i'm guessing will put you @ the 410-415 range with a good tune. i'm doing a cam swap on mine soon, hoping to put down similar numbers that you're making!

+1 on the sugar momma

 

Awesome numbers man! That cam is a proven performer but on the stock intake manifold, and stock exhaust, that's impressive! Congrats.