Originally Posted by
David2009
I will be using a GE exhaust cam and choose between GE or GTE inlet cams, I suspect the GE is the better?
I have adjustable camshaft gears and am informed that +1° inlet -3° exhaust are 'ball park' settings for stock cams on both 2JZA80-GE and GTE.
Is there a camshaft Guru here who could advise which inlet cam to choose and supercharger ball-park settings please.
Exhaust cam. (common)
Lobe separation 114° TDC
Exhaust Duration 236°
Exhaust Camshaft lift 8.4mm
Exhaust valve diameter 29mm
Exhaust Valve timing - Opening 52° BBDC
Exhaust Valve timing - Closing 4° ATDC
Inlet cam choices
GE 10:1
Lobe separation 114.5° TDC
Intake Duration 235°
Intake Camshaft lift 8.3mm
inlet valve diameter 33.5mm
Intake Valve timing - Opening 3° BTDC
Intake Valve timing - Closing 52° ABDC
J spec GTE 8.5:1
Lobe separation 113.5° TDC
Intake Duration 224°
Intake Camshaft lift 7.88mm
Inlet valve diameter 33.5mm
Intake Valve timing - Opening 3° BTDC
Intake Valve timing - Closing 41° ABDC
Export spec GTE 8.5:1
Lobe separation 113.5° TDC
Intake Duration 233°
Intake Camshaft lift 8.25mm
Inlet valve diameter 33.5mm
Intake Valve timing - Opening 3° BTDC
Intake Valve timing - Closing 50° ABDC
For reference;
1G-GZE 8:1 camshaft spec
Lobe separation 113° TDC
Exhaust Duration 240°
Exhaust Valve timing - Opening 53° BBDC
Exhaust Valve timing - Closing 7° ATDC
Lobe separation 112° TDC
Intake Duration 228°
Intake Valve timing - Opening 2° BTDC
Intake Valve timing - Closing 46° ABDC
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