Just completed a 24X TORQHEAD conversion on my 1997 Firebird, it came with a custom tune to get me started with my new engine. I cannot seem to break in the engine without the headers glowing red! HP Tuner says the timing is at 41 degrees at light throttle and 2000 RPM ? Seems a bit high.. I tried added more fuel pressure but no improvement. Any suggestions on how to get the timing more in line with low speed light throttle for new engine break-in?
Make and Model: Pontiac Formula
Engine Size (L):6.3L
Transmission Type and Model: Tremec six speed
Transmission Spec (Stock or Built): Stock
Rear End Gear Ratio: 4:10
Current Tire Size: 275/40/R17
Desired Shift Firmness (Slight, Moderate, or Very Firm):N/A
Torque Converter (Make/Stall): N/A
Injectors (Make/Model/Size): Accel ? 150836 36 lbs I will be running the fuel pressure at 50psi they will act like 42lbs
Fuel Octane: 93
Thermostat (Stock/160/180/195): 160
MAF (Stock LT1/3.5” LT1/Other): Granatelli 350331
Ported MAF (Yes/No): No
De-screened MAF (Yes/No): No
MAP Sensor (stock, 2 bar, 3 bar): Stock
? Throttle Body Size:? 58MM
Cold Air Intake (Yes/No): Ram Air
Intake Manifold (Stock LT1/Ported LT1): Ported Lt4
Exhaust Manifold (Stock/Other ?): Kooks Long Tube 1-3/4 Headers?
Catalytic Converters: Kooks High Flow
Cat Back Exhaust: Kooks 3 inch True Dual Exhaust
Nitrous (Yes/No): No
Camshaft (Make/Model/Specs): Comp Cams 280 XFI cam duration @ 50 is 230/236 Lift is 570/571 LSA 113
Cylinder Head Specs: AFR Heads 1101 ? 210 competition Heads flow Rate @.550 Lift intake/310 Exhaust/229. @.600 lift intake/318 Exhaust/236
Rocker Ratio: 1.65
Compression Ratio: 11:32:1