Headers and UD Pulley Gains on G8 GT, with Track Numbers
09-15-2011, 02:34 PM
#1
Headers and UD Pulley Gains on G8 GT, with Track Numbers Round 1 mods included a Vararam Intake, Solo Performance Axleback's, and a dyno tune for 335 rwhp and 346 rwtq.
For round 2 I went with American Racing Headers 1-7/8" long tube headers with catted x-pipe and an SLP underdrive crank pulley, along with a dyno tune. The tuning was done with the car in 4th gear and then the final pull was done in 3rd to keep the numbers consistent with my previous numbers.
Round 1 vs Round 2 dyno graph, both pulls in 3rd gear:
And if anyone is interested, here's the 4th gear pull:
I took the car up to Lebanon Valley Dragway last night and ran a best of 12.708 @ 110.4 mph with a 1.954 60'. My best mph was 110.71.
For round 2 I went with American Racing Headers 1-7/8" long tube headers with catted x-pipe and an SLP underdrive crank pulley, along with a dyno tune. The tuning was done with the car in 4th gear and then the final pull was done in 3rd to keep the numbers consistent with my previous numbers.
Round 1 vs Round 2 dyno graph, both pulls in 3rd gear:
And if anyone is interested, here's the 4th gear pull:
I took the car up to Lebanon Valley Dragway last night and ran a best of 12.708 @ 110.4 mph with a 1.954 60'. My best mph was 110.71.
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09-16-2011, 08:56 AM
#10
Thanks for the comments!
Like I said, I couldn't be happier with the car, and I'm glad that I'm finally doing a build up on a vehicle the way I've always wanted. Taking small steps and getting dyno and track numbers at each step.
Next up I should really do gears/stall/tires and work on getting the 60' down, as the mph shows how much more is in it without adding power. On the other hand, I've been thinking about converting the HSW nitrous kit from my Z28 for use on the G8. I could jet it for a 75 shot and buy a 15# bottle and go a long time between fills
Thoughts?
Like I said, I couldn't be happier with the car, and I'm glad that I'm finally doing a build up on a vehicle the way I've always wanted. Taking small steps and getting dyno and track numbers at each step.
Next up I should really do gears/stall/tires and work on getting the 60' down, as the mph shows how much more is in it without adding power. On the other hand, I've been thinking about converting the HSW nitrous kit from my Z28 for use on the G8. I could jet it for a 75 shot and buy a 15# bottle and go a long time between fills
Thoughts?
