1G-GZE camshaft specifications

[David2009]

I have just about finished building an Eaton M112 supercharger conversion for my 2JZA80-GE and plan to use the stock exhaust cam and either the GE or GTE inlet cam.

I am looking for 1G-GZE camshaft specifications to help choose between them and work out ball park settings using adjustable cam gears.

Does anyone have 1G-GZE OE cam specs please.




2JZA80-GZE.jpg

[big_zop]

That looks very nice there, I look forward to seeing some results for it.

I have the Japanese 1G-GZE manual but unfortunately I dont know any Japanese so I have also posted up the English 2GR-FE information as I would suspect they would use the same format and you can work out the specs.


1G-GZE





2GR-FE

[David2009]

The figures I wanted to see are shown in English.

Thank you very much.

[David2009]

I will be using a GE exhaust cam and choose between GE or GTE inlet cam, 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 233°
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 50° 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