After trying my two stage setup on the street, I quickly found that the truck hooked up well enough in first that it needed more N20 to get this 5K # beast going. I had it jetted at a 25 shot dry and a 150 wet which netted 606WHP/762WTQ. I decided to change to a 50 and 125 keeping the overall package at the same 175 HP increase. We also changed from a VEC2 to a VEC3 to get rid of the 1.5 second delay that the factory has built into the trucks 02 sensor curcuit (going from open loop to closed loop). After some retuning we came up with this (NA and both stages shown on chart):
I was expecting to lose some torque because generally a dry shot will yield less than a wet shot and I went up on my dry and down on my wet setup. Final #'s are 485/525 on motor (gained 13HP and 8 TQ from previous #'s) and 641/789 on the bottle (+35/27!). We fattened up the N20 tune from 3K-4K but didnt print another chart. I am super pleased, Joe Donovan at PBJ once again came through with some killer tuning, he is without a doubt the worlds best VEC tuner!!!
Justin
I was expecting to lose some torque because generally a dry shot will yield less than a wet shot and I went up on my dry and down on my wet setup. Final #'s are 485/525 on motor (gained 13HP and 8 TQ from previous #'s) and 641/789 on the bottle (+35/27!). We fattened up the N20 tune from 3K-4K but didnt print another chart. I am super pleased, Joe Donovan at PBJ once again came through with some killer tuning, he is without a doubt the worlds best VEC tuner!!!
Justin
