Dyno #'s on my car ... (funny story)

It's about time I got a dyno to see where I am ....


I am pleased with what I got

I got a best of

347.52 rwhp

334.24 torque (really flat)

Guy said that pcm for less did a good job with my tune. The air and fuel looks really good.


That was with my engine pretty hot. The funny part is that through the crappy flowmaster the hp was 20 less than with my cutout open! Flowmaster robs me of 20 rear wheel horsepower!

A certain internet mailorder company that sells both flowmaster and Hooker Aerochamber had a similar experience where they were dyno tuning a built-up LS1 motor with Flowmaster muffler that wouldn't respond to dyno tuning. In a last ditch effort, they popped the Flowmaster off and added a Hooker Aerochamber muffler and picked up 30 HP. They also saw similar gains when swapping in a Hooker for a Spintech in a Mufflex system. PM me for the contact at the mail order shop if you want the story first-hand.

So, are those numbers (347.52 rwhp, 334.24 torque) with the cutout open or closed?

Dan

open

20 less when closed