402 ls2 Firehawk dyno
402 ls2 Firehawk dyno Last week i had the Firehawk tuned at APS Racing in Oklahoma City on their Mustang dyno. I let them know that i wanted it to be as drivable on the street as possible as it would be my DD for now. They did great, and it really doesn't buck unless your under 1,500 rpm and it still makes great power.
Here is the specs:
2000 Pontiac Formula Firebird Firehawk production# 668
Trans- 6spd t56
Miles – 63,000 (13k on engine)
Engine-
1. 402ci LS2 block
2. Callies Magnum crank
3. Callies Compstar rods
4. Diamond Pistons
5. Vindicator Cam 240/244 .608/.596 112
6. High flow oil pump
7. Ported AFR 225 heads.
8. Ported LSX 90mm intake
9. Nick Williams 90mm throttle body
10. Underdrive pulley
11.Kooks headers and Y pipe, no cats
12. SLP Dual Dual exhaust
Suspension
1. Ground Control coil overs on front with 600lb springs, rear springs are custom straight 200lb rate springs with Ground Control height adjusters
2. Koni Double Adjustable shocks
3. Aluminum rear lower control arms with quality rod ends
4. 35mm hollow front sway bar
5. 22mm hollow rear sway bar
6. Aluminiun adjustable rear panhard bar quality rod ends
7. 17X10.5 280 Motorsports with Nitto 315s
8. Sub Frame Connectors
9. Drive shaft loop
10. 6 point roll cage
11. Battery relocated to right rear with required external cut-off switch
12. Tubular K frame
13. Tubular torque arm
Brakes
1. Brake ducting from lower spoiler to rotor hats
2. Hawk pads in front and rear.
3. LG Motorsports caliper relocation brackets. C5 Corvette rotors.
Interior
1. 6 point roll cage
2. Battery relocated to right rear with required external cut-off switch
3. 6 point harness
4. Programmable LED shift light
Axle is a 10 bolt with a TA rear girdle filled with 4.10 gears.
Best run was 444rwhp/412tq on their mustang dyno
And here is the dyno sheet:
Here is the specs:
2000 Pontiac Formula Firebird Firehawk production# 668
Trans- 6spd t56
Miles – 63,000 (13k on engine)
Engine-
1. 402ci LS2 block
2. Callies Magnum crank
3. Callies Compstar rods
4. Diamond Pistons
5. Vindicator Cam 240/244 .608/.596 112
6. High flow oil pump
7. Ported AFR 225 heads.
8. Ported LSX 90mm intake
9. Nick Williams 90mm throttle body
10. Underdrive pulley
11.Kooks headers and Y pipe, no cats
12. SLP Dual Dual exhaust
Suspension
1. Ground Control coil overs on front with 600lb springs, rear springs are custom straight 200lb rate springs with Ground Control height adjusters
2. Koni Double Adjustable shocks
3. Aluminum rear lower control arms with quality rod ends
4. 35mm hollow front sway bar
5. 22mm hollow rear sway bar
6. Aluminiun adjustable rear panhard bar quality rod ends
7. 17X10.5 280 Motorsports with Nitto 315s
8. Sub Frame Connectors
9. Drive shaft loop
10. 6 point roll cage
11. Battery relocated to right rear with required external cut-off switch
12. Tubular K frame
13. Tubular torque arm
Brakes
1. Brake ducting from lower spoiler to rotor hats
2. Hawk pads in front and rear.
3. LG Motorsports caliper relocation brackets. C5 Corvette rotors.
Interior
1. 6 point roll cage
2. Battery relocated to right rear with required external cut-off switch
3. 6 point harness
4. Programmable LED shift light
Axle is a 10 bolt with a TA rear girdle filled with 4.10 gears.
Best run was 444rwhp/412tq on their mustang dyno
And here is the dyno sheet:
444 even on a mustang dyno unless it was a hot humid day or its a real stingy mustang dyno. Track times will give you a better idea but with your setup it should be easily over 500 I would think
With a larger cam and a crappy tune it made 540rwhp on a dynojet. I decided that cam was WAY to big and opted for the one in it now.
This most resent tune, outside it was in the upper 70's and it was raining cats n dogs.
This most resent tune, outside it was in the upper 70's and it was raining cats n dogs.
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Resurrecting my thread since i've been away on military duties.
Can anyone give me some tips on what i should do in order to get these numbers up to where they should be? I do feel like this is way lower than this setup should be making. As soon as i return home I plan to get a 12 bolt or 9 inch rear as well...don't like the stock 10 bolt.
Can anyone give me some tips on what i should do in order to get these numbers up to where they should be? I do feel like this is way lower than this setup should be making. As soon as i return home I plan to get a 12 bolt or 9 inch rear as well...don't like the stock 10 bolt.
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Joined: Oct 2006
Posts: 2,608
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From: Webb City, MO...out in the garage
aftermarket rear ends will eat up a little power....take it to the track, dyno numbers are just numbers...good for reference if you're observing before & after a certain mod AND (most importantly) if you're using the same dyno. If you drive it well and run mid 12's, THEN i'd say there's a problem 
I will take you up on that when i get back in a few months. I am currently in Georgia training until sometime in August.
