04 dyno part 2

[RocDoc]

Headers, Vararam and vortex air bridge installed on Thursday. I put my 04 on the dyno at Fastech this morning. Not what I expected. My first pull last week was 313.37 rwhp with 330.45 ft. lb.s of torque.
With the headers, Vararam and Vortex air bridge it was 321.48 rwhp with 337.72 ft lbs of torque.
With the LS1 edit...it was 331.73 rwhp and 344.69 ft lbs of torque.
I guess my next step is heads/cam and high flow cats.


Happy New Year Ya'll
James "RocDoc" Goode
Garland, Texas

[bluecoupe]

Originally Posted by RocDoc

Headers, Vararam and vortex air bridge installed on Thursday. I put my 04 on the dyno at Fastech this morning. Not what I expected. My first pull last week was 313.37 rwhp with 330.45 ft. lb.s of torque.
With the headers, Vararam and Vortex air bridge it was 321.48 rwhp with 337.72 ft lbs of torque.
With the LS1 edit...it was 331.73 rwhp and 344.69 ft lbs of torque.
I guess my next step is heads/cam and high flow cats.


Happy New Year Ya'll
James "RocDoc" Goode
Garland, Texas

You must have seen an improvement in the power curve. Also your ETs must have improved. IMHO Peak HP and torque are just part of the story. I'm sure your Vette has a big "seat of the pants" improvement over stock. You are right about heads (and cam). They are the best way to get more power. More cubes would also wake it up nicely.

Have fun!

Frank (bluecoupe)

[Edmond]

But wasn't the Vararam designed for higher speed power?

[Mr. Lucky]

Your numbers seem very reasonable for those mods.

Remember...
Headers - Improvement will be minimal if they dump into the stock cats/catback
Vararam - No improvment on dyno unless there is a high CFM fan in front of bay
Air bridge - No performance improvement...period.

[Terry Holtz]

>>>>>>> My first pull last week on Dyno was 313.37 rwhp with 330.45 ft. lb.s of torque.
With the headers, Vararam and Vortex air bridge it was 321.48 rwhp with 337.72 ft lbs of torque.<<<<<<<<

What brand of headers? Were they long tubes? I've heard that short tubes don't make for much difference in HP. But either way, headers should weigh quite a few pounds less than the cast iron stock exhaust manifold. so there's always that advantage.

[RocDoc]

I'm curious....Would putting ZO6 heads and maybe a ZO6 cam in my LS1 void my warranty...only have 5000 miles on it.