Just got back from the dyno. Pretty pleased with the results. It is running pretty rich, think I'll send it back to JL and get it leaned out a lil bit. A/F got as rich as 9.6....you can really see where it affects the curve.

right click save-as.....
Dyno Run 1
Dyno Run 2
Dyno Run 3

 

nice truck, that's definately a safe tune with 9.6 A/F ratio, your hiding a bunch of power with that tune I would think. your numbers seem a bit low for a 5lb pulley, mostly the torque numbers, but it's safe so that's good. sounds nice!

 

I like the 2 speeds at which it looks like the wheels are not even spinning.

--Joe

 

wow 9.6 is way to rich....i would lean it out to the 11s.

 

Michael: We have similar(see sig.) mods. You are leaving some hp/tq numbers in that 'fat' chip. My a/fs were in the 12.5 range with no detonation.

Dan

 

Yep, you are safe, but at that rich I would worry about fouling plugs. With similiar mods I am at 505 ft/lbs of torque, with a safe 4 gas reading... a slightly richer chip cost 30+ horsepower and hurt torque even worse, so there's a narrow line of good tune between pig rich and time for a new engine.