CMKworm

iTrader: (2)

My Z28 on the dyno. Not the highest pull but a good sound clip of the exhaust through a full Hooker system with muffler. Next time I'll try and get a pull with the cut-out open. Max HP 455/Max Tq. 408 Corrected for Automatic Transmission Drivetrain Loss is 546 Crank HP from a NA 383 LS1. Tuning by Justune. Dynojet Dyno. 90*F with 54% Humidity.

Docrocket1967

iTrader: (1)

Sounds gr8 man. Watd it do in later pulls?

cookba

iTrader: (10)

whats the build specs?

CMKworm

iTrader: (2)

455/408 was my highest. We probably did 6 back to back pulls while tuning and it stayed in the 450-453 range so I'd say that's a pretty solid number.

Engine:
383 CI LS1 V8 Rebuilt at 54,810 mi.
3.905 Bore
Callies Compstar 4” Crank
Callies Compstar 6.125” Connecting Rods
ACL Rod and Main Bearings
Diamond -2cc Flat Top Pistons and Rings
ARP Main Studs, Head Studs and Balancer Bolt
ASP Underdrive Pulley
LS7 Lifters and LS2 Lifter Trays
Cylinder Head Specialties Stage 2 - 5.7 LS1 241 Heads
(REV 2.02 intake, 1.57 exhaust valves, & Patriot dual gold springs(valve drop .105 and .135 milled .030 with 64cc chambers and flowing 299 In and 224 Ex at .600 lift))
GM LS2 MLS Head Gaskets (4.020/0.051)
Futral Motorsports .236/.244 (Dur.) .600/.595(Lift) 114+4 (LSA)
Comp Cam Chromeoly Pushrods
Rollmaster Dual Roll Timing Chain
Yella Terra 1.7 Roller Rockers
Energy Suspension Endlinks Set
Hypertech 160' Thermostat
SLP Heavy Duty Oil Pump
Thunder Racing Coil Pack Relocation Kit
Taylor 10 m.m. Plug Wires
NGK TR55 Spark Plugs
FAST Fuel Rails with FAST Mechanical Fuel Gauge
Racetronix 42lb./hr. Fuel Injectors
Racetronix 255L/Hr. In-Tank Fuel Pump with Hotwire kit
HP Tuners SD Tune by Justune

Intake:
FAST LSXR 102mm Intake
Nick Williams 102mm Throttle Body
SLP 85mm Mass Air Flow Sensor
SLP Flo-Pac

Exhaust:
Jet Hot Coated Hooker Headers
" " Y-Pipe
" " Exhaust
" " McCord Electric Race Ready Cut-Out

Transmission:
Stage IV Speed Inc. Max Evil Transmission
Energy Suspension Trans. Mount
TCI 3500 Stall Converter
B&M Supercooler

Rear End:
3.73 GM Motive Gears
TA Performance Rear End Girdle

Suspension:
Eibach Pro Kit
UMI Bolt-In 3-Point Subframe Connectors
UMI Lower Control Arms

Other:
Drilled & Slotted Ri Rotors
18x9.5 Y2K Vette Wheels
285-35-18 Nitto NT555 Extreme Performance Tires