Originally Posted by augiedoggy
I member of another forum posted 87 -89 and 93 octane dyno results before and after factory death flash tune was removed and replaced with the sct... the biggest improvement was with the 93 octane tune and as sean explained it because of pinging it was the best for maximizing hp and torque..... and on the dyno with two runs verifying this the increase with the 93 tune over stock is 20lbs of torque and 4HP...thats right 4HP... thought you were getting better results didnt ya?... the other thing like the torque management removal and such make it feel that way but at a cost..
I remember reading this post ( I am a member of that forum under a diff s/n)) and querying the owner about it. did not get specific answers to my questions so I started a dialogue with Sean. I challenged him to create an "ultimate 89 tune" that could be run on 87 gas but with more guts than the 87 tune. He claims he created this tune for me as a canned tune. Maybe he didn't.
I also know the owner of the truck involved in the dyno runs has an older second gen truck. I don't believe the 99 and older trucks benefit from tuners as much as the 99 and up trucks. Part of this is the amount of deathflashing and torque management upgrades in the later trucks. Since torque management was designed to limit lower end power to decrease driveline damage warranty claims you would not see that on the highend.
Having owned a '97 club cab 4x4 short bed with a 5.9 I can tell you that truck would burn rubber and run away from my 2000. It also averaged better mileage, but unlike this truck never had a lift or tires.
I'd like to state that if the tuner increases torque 20 ft lbs I'd like to believe I got that much and maybe more. Torque is needed to get things moving, horsepower helps keep you there.
I can tell you that part throttle acceleration is awesome compared to my non tuned truck. Holding a steady 65 going up a hill in a headwind is no longer a gradual pedal feed until kickdown occurs. At around 1500 rpm in OD/lu, I can gently depress the gas pedal and hit 65+ mph to pass in traffic without kickdown. Again, before the tuner my truck could not do that.
Lastly, the truck will light up the rears without flooring it on wet pavement. Again something the truck wouldn't do before the tuner. So I'm glad I don't have to use kickdown to get moving...we've had a lot of rain in the last few days!
Point: If I paid 265 bucks and got 20+ ft lb of torque right where I needed it this was a more cost effective mod than the price of my Catback, FIPK and coil combined, not to mention the fancy ignition wires. But I'm also looking for a mileage increase. No solid data has been compiled on mileage in all these other tests. The power increase is welcomed, but how long will it take to pay for the tuner in gas savings? So far I've got about a half mile per gallon. I was suprised at this based on the power increase, but as stated previously I blame a transmission out of adjustment.
I promise to try the 93 tune someday. But not tomorrow, or next week.