New Cam
#1
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Thinking about going with a bigger cam, what would you go with?
1999 Pontiac Firebird Trans Am WS6 M6
ENGINE MODIFICATIONS:
Texas Speed & Performance LQ9 Gen III Iron Block 408 CID Stroker 6.6 Liter
Installed 9/14/2013 @ 27,000 Miles
Wiseco 4.030" Forged -10cc Dish Pistons
Wiseco Steel Top Ring Set, Napier 2nd Ring Set Piston Rings
Lunati 6.125 Forged H Beam Connecting Rods
Lunati 4.00" Forged Crank Shaft
ARP 2000 Rod Bolts
ARP Main Studs
ARP 12 Point Head Studs
ARP Cam Bolts
Comp Cams Custom Grid Camshaft
228/234 .588/.576 114+0 (Split Duration)
Comp Cams 26918 Valve Springs
Comp Cams 772 Titanium Retainers
Thunder Racing Stock Length Pushrods
Velocity Ported and Port Matched 5.3 Heads
Heavy Duty Double Roller Timing Chain
60# Semiens Deka Fuel Injectors 107961
NGK BR7EF Spark Plugs
INTAKE MODIFICATIONS:
Stock Ram Air Baffle Delete
Al Austin Super Sucker Ram Air
K&N Air Filter
Fast Toys Performance FTP High Flow Black 98 mm Air Lid
Descreened ZO-6 85mm Mass Airflow Sensor
Custom Intake Bellows
Nick Williams 90mm Throttle Body
F.A.S.T. LSX 90mm Intake Manifold Ported and Port Matched
EXHAUST MODIFICATIONS:
Jet-Hot Long Tube Headers
Jet-Hot Y Pipe
Hooker “Cat Back”
OTHER PERFORMCE MODIFICATIONS:
March Performance Pulleys
Walbro 465 LPH DCSS Twin Turbine Fuel Pump (E85 High Pressure Intank Pump)
Upgraded Fuel Pump Wiring Harness
NX Nitrous Express 125 Shot Wet Kit
NX Bottle Heater
MSD Window Switch
Dual Innovative Motorsports Wide Band O2 Sensors
Computer Tuning by Carl CJ Tunes
DRIVETRAIN MODIFICATIONS T-56 M6:
RPS Street Twin Full Carbon Clutch And Flywheel 9/13
Tick Performance Adjustable Clutch Master Cylinder Kit
Strange S/T Series 12 Bolt Rear End (Rebuilt 5/10)
33 Spline Axels
3.73 Gears
Al Austin Short Stick Shifter
SUSPENSION MODIFICATIONS:
Eibach Pro Kit Lowering Springs
Lakewood Rear Lower Control Arms
Granatelli Motorsports Signature Series
Panhard Bar
Edelbrock Torque Arm
BMR Boxed Subframe Connectors
WHEELS/TIRES:
Boyd Coddington Smoothie II 18x9
Front: BFG 275/35/18
Rear: BFG g-Force T/A Drag Radials 295/35/18
MILEAGE: 27,500 miles
PERFORMANCE:
499.75 Rear Wheel Horsepower NA
518.63 Rear Wheel Torque NA
625.19 Rear Wheel Horsepower 125 Shot N20
742.33 Rear Wheel Torque 125 Shot N20
1999 Pontiac Firebird Trans Am WS6 M6
ENGINE MODIFICATIONS:
Texas Speed & Performance LQ9 Gen III Iron Block 408 CID Stroker 6.6 Liter
Installed 9/14/2013 @ 27,000 Miles
Wiseco 4.030" Forged -10cc Dish Pistons
Wiseco Steel Top Ring Set, Napier 2nd Ring Set Piston Rings
Lunati 6.125 Forged H Beam Connecting Rods
Lunati 4.00" Forged Crank Shaft
ARP 2000 Rod Bolts
ARP Main Studs
ARP 12 Point Head Studs
ARP Cam Bolts
Comp Cams Custom Grid Camshaft
228/234 .588/.576 114+0 (Split Duration)
Comp Cams 26918 Valve Springs
Comp Cams 772 Titanium Retainers
Thunder Racing Stock Length Pushrods
Velocity Ported and Port Matched 5.3 Heads
Heavy Duty Double Roller Timing Chain
60# Semiens Deka Fuel Injectors 107961
NGK BR7EF Spark Plugs
INTAKE MODIFICATIONS:
Stock Ram Air Baffle Delete
Al Austin Super Sucker Ram Air
K&N Air Filter
Fast Toys Performance FTP High Flow Black 98 mm Air Lid
Descreened ZO-6 85mm Mass Airflow Sensor
Custom Intake Bellows
Nick Williams 90mm Throttle Body
F.A.S.T. LSX 90mm Intake Manifold Ported and Port Matched
EXHAUST MODIFICATIONS:
Jet-Hot Long Tube Headers
Jet-Hot Y Pipe
Hooker “Cat Back”
OTHER PERFORMCE MODIFICATIONS:
March Performance Pulleys
Walbro 465 LPH DCSS Twin Turbine Fuel Pump (E85 High Pressure Intank Pump)
Upgraded Fuel Pump Wiring Harness
NX Nitrous Express 125 Shot Wet Kit
NX Bottle Heater
MSD Window Switch
Dual Innovative Motorsports Wide Band O2 Sensors
Computer Tuning by Carl CJ Tunes
DRIVETRAIN MODIFICATIONS T-56 M6:
RPS Street Twin Full Carbon Clutch And Flywheel 9/13
Tick Performance Adjustable Clutch Master Cylinder Kit
Strange S/T Series 12 Bolt Rear End (Rebuilt 5/10)
33 Spline Axels
3.73 Gears
Al Austin Short Stick Shifter
SUSPENSION MODIFICATIONS:
Eibach Pro Kit Lowering Springs
Lakewood Rear Lower Control Arms
Granatelli Motorsports Signature Series
Panhard Bar
Edelbrock Torque Arm
BMR Boxed Subframe Connectors
WHEELS/TIRES:
Boyd Coddington Smoothie II 18x9
Front: BFG 275/35/18
Rear: BFG g-Force T/A Drag Radials 295/35/18
MILEAGE: 27,500 miles
PERFORMANCE:
499.75 Rear Wheel Horsepower NA
518.63 Rear Wheel Torque NA
625.19 Rear Wheel Horsepower 125 Shot N20
742.33 Rear Wheel Torque 125 Shot N20
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#2
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Location: Howell & Fenton MI
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What kind of 5.3 heads are you running. I run PRC stage 2.5/5.3 heads on my 370 LQ9 with a cam quite a bit bigger than yours, and it's none to big IMO. Mine is 612/612 lift, 236/244 duration, 113+4 LSA. I'd go bigger than that on your 408
#3
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I know there is more left on the table.
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