Joined
·
2,630 Posts
Well here we go...
I took the car to A & A Corvettes in Oxnard for the dyno tune this morning.
The mods I have on the car are listed below in my signature. I didn't do a baseline run without the mods because I was so anxious to put all the stuff on when I got them.
So before the tuning the baseline run was;
351 rwhp and 351 rwtq max
First tune and run;
357 rwhp and 359 rwtq max
Final tune and run;
365 rwhp @ 6000 rpm and 363 rwtq 4300 rpm
I was told that there was a little more that could have been pulled out but it would have been on the edge of creating detonation. So I said, "No thanks".
At the crank;
430 hp and 427 tq (estimated drivetrain loss at 15%)
435 hp and 432 tq (estimated drivetrain loss at 16%)
I'm no sure what the drivetrain loss % really is because I've seen different estimates from different dyno shops.
Air/fuel ratio read 13:1 with a small dip to 12.5:1 between 3200 rpm to 6800 at wide open throttle for the final run. But for the most part, it was steady at 13:1.
I had the 1st to 4th, Skip Shift garbage removed and the redline raised to 6800. I didn't remove the torque management because I was told that the small performance gain, if any, is not worth the abuse you'll be placing on your drivetrain. When traction control is off, the torque management is there to prevent your drivetrain from taking a beating as you shift at full throttle (auto and 6M). I was told that it's function is so minimal that removing it won't make that big of a difference. Especially on a street car with little to no mods. A full on race car, well it's a different story. Since I didn't know much about this area, I didn't question it. Also I didn't mess with the speed limiter. There is absolutely no need for me to go any faster than 158 or whatever it's set at anyway. I've done 155 and I don't think I'll be doing that too often.
In my thread "Torque spec for headers" I predicted around 360/360. So when I saw the final numbers I was very pleased. The owner said that some have complained that his dyno gives low numbers. But to be honest, I don't care. I'm happy with the results. For $500 and 1.5 hours of tuning, it was definitely worth it.
![]()
I took the car to A & A Corvettes in Oxnard for the dyno tune this morning.
The mods I have on the car are listed below in my signature. I didn't do a baseline run without the mods because I was so anxious to put all the stuff on when I got them.
So before the tuning the baseline run was;
351 rwhp and 351 rwtq max
First tune and run;
357 rwhp and 359 rwtq max
Final tune and run;
365 rwhp @ 6000 rpm and 363 rwtq 4300 rpm
I was told that there was a little more that could have been pulled out but it would have been on the edge of creating detonation. So I said, "No thanks".
At the crank;
430 hp and 427 tq (estimated drivetrain loss at 15%)
435 hp and 432 tq (estimated drivetrain loss at 16%)
I'm no sure what the drivetrain loss % really is because I've seen different estimates from different dyno shops.
Air/fuel ratio read 13:1 with a small dip to 12.5:1 between 3200 rpm to 6800 at wide open throttle for the final run. But for the most part, it was steady at 13:1.
I had the 1st to 4th, Skip Shift garbage removed and the redline raised to 6800. I didn't remove the torque management because I was told that the small performance gain, if any, is not worth the abuse you'll be placing on your drivetrain. When traction control is off, the torque management is there to prevent your drivetrain from taking a beating as you shift at full throttle (auto and 6M). I was told that it's function is so minimal that removing it won't make that big of a difference. Especially on a street car with little to no mods. A full on race car, well it's a different story. Since I didn't know much about this area, I didn't question it. Also I didn't mess with the speed limiter. There is absolutely no need for me to go any faster than 158 or whatever it's set at anyway. I've done 155 and I don't think I'll be doing that too often.
In my thread "Torque spec for headers" I predicted around 360/360. So when I saw the final numbers I was very pleased. The owner said that some have complained that his dyno gives low numbers. But to be honest, I don't care. I'm happy with the results. For $500 and 1.5 hours of tuning, it was definitely worth it.
arty: 
