blackbird

[thomas]

anyone have any stats on the phase II blackbird? i think it had like 470 hp or something like that. I no the phase one was like 380 hp and ran a high 12 in the 1/4.

[Injuneer]

Keywords "GMMG Blackbird" googled the answer in about 5 seconds:

http://www.ls1tech.com/forums/showthread.php?t=124401

04-30-2005, 12:26 PM #17
Mike@Vengeance
LS1TECH Sponsor

Join Date: Jun 2002
Location: Atlanta
Posts: 470
Trader Rating: (0)

Thought I would clear this up for everybody interrested in these packages and what they come with exactly.

Phase II 435HP package (no longer avalible)

Phase IIX 475HP package
5.3 CNC ported and hand polished race heads (flow over 315cfm and 260cfm), cam (customer choice of about 5 different ones depends on driver and needs), Headers choice TTS or SS Dynatechs with cats, Hardened Pushrods, new gasket-bolts, Lightweight Flywheel, Red Valve Covers, LCA relo, Red Motorsports plugwires, NGK plugs, Red Powdercoated Brake Calipers, Different Lid stickers, documentation, GMMG window sticker Automatics get Yank TQ Converter (choice) and BM transcooler. Tuning and Install included

RWHP Range 420-450 auto slightly less due to driveline

Phase IIX6 Everything above except LS6 heads 10-15RWHP and TQ gain

Phase IIX6R Everthing above except ARP studs all around, ARP rod bolts, Notch Pistons for max camshafts. (Not recommend for daily driving or your wife) Revs to the moon for max HP.

We also offer all of our customers the ability to upgrade other parts of their cars as well like.

Subframes, Rollcages, Clutches, Bigger Brakes, Rims, Tires, And for guys who have the balls 427 CI Big Cubes!!!!

We constantly change these packages to keep up with customer demands and when better parts are avalible and have been tested by us. And we test alot of stuff!!!

We try to build something that will last a long time and can go anywhere with reliable performance and value. Hope everyone likes their cars and hope this clears up any questions for you guys.

Mike
GMMG INC.
__________________
Owner Vengeance Racing

2002 ZL1 #69 Solid Roller 427 "Grumpy's Toy" Sold
2007 Tahoe 5.3 Pedder Suspension Kit/Tuned
1993 Z-28 Evilz Needs another MOTOR LSX??
2006 Trailblazer SS LS2
2006 GTM SUPERCAR OH YEAH!!!

AND 3 or 4 or 5 BADASS GMMG Cars

[thomas]

hey thanks for the help but I was kinda lookin for the 1/4 mile times for that phase IIx or phase II. Any ideas?

[Injuneer]

475 flywheel HP should be good for high 11's at 115MPH. But their estimate of 420-450rwHP from a 475HP engine is not logical. 5-11% drivetrain loss is not correct.

[thomas]

475 flywheel HP should be good for high 11's at 115MPH. But their estimate of 420-450rwHP from a 475HP engine is not logical. 5-11% drivetrain loss is not correct.

should be 15% loss, right? thats pretty fast. Ofcours.e you have to pay an arm and a leg for the darn thing

[Injuneer]

Loss through an M6 at that power level should be a shade under 12.5%. An automatic (4L60E) would be in the range of 16-18%.

My 381 (486 flywheel) put down 426rwHP through an M6, and ran a best of 11.5@117MPH. But typically it will run 2/10's and 2 MPH slower.

[thomas]

hey thanks for all your help.