Probably a long shot, but does any have the detail below for the standard JDM 8MR Cams?

Inlet opening angle:
Inlet closing angle:
Exhaust opening angle:
Exhaust closing angle:
Overlap: (obviouisly I can work this out if I have the above info.)

I have the following details so far, but can't find the above:

Inlet Duration: 260 Lift: 10mm Peak Lift Angle: 113*
Exhaust Duration: 256 Lift: 9.5mm Peak Lift Angle: 110* (or 112*) depending which source you beleive.

Cheers

Keith

Assuming this info is correct ...

JDM EVO MR
Advertised Duration 260 deg Int / 256 deg Exh
Effective Dur ___ deg @ 1mm Int / ___ deg @1mm Exh
Lift 10.0mm Int / 9.5mm Exh
Lobe Centerlines 113 deg Int /112 deg Exh
LSA 112.5 deg

... the calculations are easy. If we know the advertised duration numbers and the lobe centerlines, we have everything we need.

Intake:
260/2 = 130
110 deg ATDC - 130 deg = Intake Open @ 20deg BTDC
110 deg ATDC + 130 deg = Intake Closed @ 60 deg ABDC

Exhaust:
256/2 = 128
112 deg BTDC - 128 = Exhaust Open @ 60 deg BBDC
112 deg BTDC + 128 = Exhaust Closed at 16 deg ATDC

Thanks for that,

I did think of working it out that way but wasn't sure if it would work as i don't know if peak lift was the same as the center line of the lobe. Thinking about it now it's fairly obvious.

Regards

Keith