Thread: Have a few technical questions

Does anybody know the rocker arm geometry on a ve head . Also does anybody have the specs on non n1 sr16ve cams.

Intake cam:
Primary Intake Rocker Ratio = 1.62
Secondary Intake Rocker Ratio = 1.65

Exhaust Cam:


Pri Rocker ratio = 1.549
Sec Rocker Ratio = 1.595

SR16VE
Intake cam
Low Intake Duration: 200
Low Intake Lift: 7.1
Low Intake Center Angle: 100

Low Lobe Center Angle: 111
Low Overlap: 0

High Intake Duration: 280
High Intake Lift: 11.1
High Intake Center Angle: 100

High Lobe Center Angle: 105
High Overlap: 70

Exhaust cam
Low Exhaust Duration: 244
Low Exhaust Lift: 7.95
Low Exhaust Center Angle:122

High Exhaust Duration: 280
High Exhaust Lift: 11.1
High Exhaust Center Angle:110

The manual I have says clearance at the valve stem will be 1.548 times the clearance at the cam. Its all in japanese but this seems to line up with my measurements. What cam specs do you want? Duration at what lift? There are a lot of different figures that have been quoted.

Thank you very much .

What i need is the figures that have already been posted above but if you have anymore figures that would help me out i would greatly apreciate if you shared them.