Black Night

2006 Pontiac GTO
575rwhp corrected on Mickey Thompson ET Street II

441 c.i. (7.2 Liter) LSX block
PBJ Performance Nitrous Build

Top End
100mm MAF, 100mm Intake, Nick Williams 102 T/B,
102mm Fast Intake manifold with Nitrous Outlet Fogger.

Heads
PRC LS7 285cc CNC ported Heads
ARP 2000 Head studs

Lower End
Callies 4.125 Crankshaft, Callies Rods,
Wiseco Pistons

ATI 10% underdrive Super Damper

Exhaust
Kooks Signature Series Stepped Headers 1 7/8" x 3"
Kooks 3" Off Road Mid Pipes, X-pipe, Cut outs
Magnaflow 3" Competition Catback

blk00ss

iTrader: (66)

Not bad! Where's the dyno graph?

HCI2000SS

iTrader: (2)

Very cool!

Black Night

Didn't have one printed.

565rwhp uncorrected, 575rwhp corrected.

Here is a better video at KC Street Car Takeover.

blk00ss

iTrader: (66)

Cool. Any track times?

Rise of the Phoenix

iTrader: (27)

Did this car run in any of the class races at SCT KC?

Black Night

No times, strictly street. Dig and rolls in the Kill section.

Black Night

No, only the street at KC and Indiana Street Car Takeovers.

Dig races and rolls in Indiana on this vid. GTO is fully weight with competition audio system.

Black Night

https://flic.kr/p/xdGJ6P

Rise of the Phoenix

iTrader: (27)

After I posted that, I saw the thread you made on the Street Racing/Kill section. Very nice videos by the way.

gnx7

iTrader: (28)

does it have a baby cam? I'm surprised it isn't a little higher.

What compression?

Black Night

Cam is a nitrous cam, custom. Compression undisclosed.
Dyno numbers is not a big deal. You can loose 20rwhp with a drag radial easy if not more. 80+ degree weather don't help either. I'm more than happy with the result of the races the car has ran from digs and rolls.

Rise of the Phoenix

iTrader: (27)

So a car that dynos with lets say 18 inch wheels and regular street tires could dnyo significantly higher than the same car running a 15 inch wheel and 26" tall ET Street Radials?

Black Night

I can't speak on the difference of 15 inch wheels and 26 inch tires with drag radials. I have not had this type of setup on my car.

However, there is a difference between drag radial and street tires. Even air pressure makes a difference.

The taller tire and 15inch wheel may take gear out of the car which could be favorable to the dyno numbers, but the might be negated by the drag radial losses.

Most importantly, I picked up at least 100 hp and 95 ft-lb switching from a 6.0 LS2 heads, cam, fast intake/tb to the 7.2 liter LSX on the same Dyno with room to spray 400+ shot of nitrous.

It should be a fun time.