calibur45

iTrader: (1)

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:

Detroitmuscle

iTrader: (16)

number seem a little low for a 6 speed car through a 10 bolt, but it sounds like a fun DD.

calibur45

iTrader: (1)

The tuner said on a dynojet it would be 500-510. Before it had this cam, it had a much larger one and made 540rwhp on a dynojet. Decided to go with something less crazy

Mazzenger

iTrader: (5)

So did you drive it 13k before tuning it?

reeperz28

iTrader: (1)

Have you ran it at the track?

smok'nZ

iTrader: (160)

ported lsx intake 90mm, ls2? or FAST 90? also i would get a custom cam that thing is tiny lol i had one in my stock ci ls1 a year ago.

also do you have a cut out? if not id get one my slp dual dual was costing me 20rwhp

nice combo any pics?

calibur45

iTrader: (1)

This most recent session it was at about 12.5k, so yes. However, the previous owner had it tuned when it was built and had a much larger cam. I'm assuming it didn't have many miles on it at that point.

I haven't, as i've only had it a week and a half. Previous owner had best time of 11.3 on the strip.

There are some details i'm not sure of, like the intake. I believe it is an ls6, but am not sure. It had a custom grind cam in it when i bought it (256/264 .609/.601 113) but it was WAY to big. I drive this thing daily and wanted something that makes good power but is actually streetable. As for the exhaust, the dual/dual does have a cutout just before the muffler. I've opened it a couple times, but there is no way i'm leaving that off for any period of time...it's insanely loud. I plan to get a different catback asap, most likely a magnaflow.

98blueSScamaro

iTrader: (14)

yea vindicator is a good cam for this setup. I would like to know what intake you have on the car as well. And also ihave been on md dynos and dyno jets. the mddyno seems to load the car more there for dropping the rpm peak. so mine on a dyno jet was 7200 then it would fall off. mustang dyno 6900 then fall off. so if you up grade the intake to a 102 i am sure you can gain a nice 8 to 10 hp if ported correctly across the graph. but your not doing bad with the setup you have.

Rob

smok'nZ

iTrader: (160)

unless its a mamo ported fast 90 i bet it would gain 20+ with a fast 102/102 set up

butler

Numbers are low. My 383 with afr 225 heads through a 5000 stall and moser 9" made 450 rwhp. Seems like more is left on the table.

calibur45

iTrader: (1)

On a load bearing mustang dyno?

mike c.

iTrader: (1)

seem way low. I have a 402ci with 540hp on a stang dyno with a 12 bolr and a steel drive shaft. My cam is a 247/2xx 111lob I ran near mid 10's n/a at 130.8mph on last cam. I have a Pat G cam and mammo ported my 102mm. I hope to run high 10.4's next time out n/a.

calibur45

iTrader: (1)

Sounds like i may need to upgrade my intake. I have bought a true dual 3" xpipe + catback and plan to get rid of the dual/dual setup. Pretty sure that thing is robbing some power as well.

Drew-Bot

My 383 Tsunami Cam and Heads made 490rwhp on a mustang dyno. With only a ls6 intake and throttle body. Its a M6 as well, Numbers seem low to me as well

calibur45

iTrader: (1)

Any recommendations on where to check or what to do to increase these numbers? I know numbers aren't everything...but this seems really sub par.

Mazzenger

iTrader: (5)

Cut-Out! - Would gain probably 10rwhp or more.
Nitrous?

I don't think your Ported 90/90 intake is holding you back much. IMO
I run a 90/90 on my 408 and it is doing well.

odarabla

iTrader: (1)

There's nothing wrong with your intake. I have a ported Fast 90mm intake and TB on my 402ci and have gone 10.39@129mph in a full weight (3540lbs) 2002 Z28..

odarabla

iTrader: (1)

Exhaust is one thing but you should spec your combo to work together. I would get another custom cam speced for what you are looking to acheive.

disc0monkey

iTrader: (10)

exhaust needs work, a magnaflow or anything like that will hold you back. would go with that spintech with the big pipe from the y back or true duals.

odarabla

iTrader: (1)

This is what I am running on my car.. 3" Nascar flat tubing with a X-pipe to 3" Magnapacks racing Mufflers dumped before the axel. Sounds good to..