2004 GTO Cam Only Dyno Numbers
 

I decided to put my 04 on the dynojet and I was quite happy the mods to my car are in my signature. a vid and pic of the sheet should be up soon. The results were 387.94rwhp@6,300 and 372.73rwtq@5,000 Next mods are ported LS6 or Street warrior and Pro Products 85mm Throttle Body ...with those added looking to try for 400 wheel

Then later add PRC stg 2.5 5.3 heads or another type of heads and UD pulley with around 11:1 compression and try for 440+ wheel What do you guys think ?

Not bad. How are you only cutting a 2.0 60' with DRs? I did that on street tires.

The stock clutch with 388 wheel that does not like the radials lol new clutch is going in and then i can really launch car hard if i get my 60 ft down ill be 12.5/12.4 I could only launch stock clutch around 3,500 and it seemed to slip a tad :confused: Time will be better with new clutch that i can launch yea i did 1.9 on all seasons when car was about stock
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Very nice numbers! I think you definitely have a good shot at hitting 400 rwhp with a couple more bolt-ons.

Very good numbers for a cam only setup.

Thanks guys I was pleased especially because the IRS cars like the GTO usually put down lower numbers than like the Trans Am and Camaro ( someone correct me if im wrong)

nice results for the mods

You sure it is the clutch slipping and not the DR's slipping? Can you smell the clutch burning?

I guess what I'm getting at is some dr's actually need to be heated up quite a bit before they grab (nitto's for example).

Also, make sure you are completely out of the waterbox before you light them up or you'll just throw water up into the wheelwell and then it will drip down onto the tires while you are lining up.

Yea i usually can smell clutch and the pedal wants to almost stick to the floor at the end of the run on 3rd to 4th shift then pedal comes back after cooling and normal driving its just fine only acts up on hard shifts
388 rwhp on stock clutch is prolly pushing it esp since car has over 63k on her my buddy had same prob and replaced clutch and problem went away

Just got my 04 6speed at the dynojet... 319hp 329tq slp headers and exhaust only mods

Nice! You know this is a 10 year old thread, right?