like the title says..im looking for the ABDC valve closing degree for all the stages of skunk2s and the spoon cams. thanks.

 

... its all greek to me.

 

 

supposedly the skunk2 1s are 43 degrees, but that seems odd since ITR cams are 45 degrees. I would think that the skunk2 1s would be greater than ITRs.

gsr - 40
itr - 45
skunk2 stage 1- 43?
Skunk2 stage 2 - 49
Skunk2 stage 3 - 52
Toda A - 45
Toda B - 50
Crower 63400 - 36
Crower 63401 - 40
Crower 63401T - 33
Crower 63402A - 40
Crower 63402 - 41
Crower 63403 - 46

 

ABDC Closing = Intake Cam Duration - Intake Valve Opening
> Crank Angle BTDC - 180. It's just that no one seems to have this spec
even
> though it is very crucial.
>
> the intake cam's abdc closing degree can be plugged into a dynamic CR
> calculator to find the ideal compression ratio for the specific cam. its
> the degree at which the valve closes while the piston is on its way up to
> compress. the higher the degree, the more compression that is lost. i
hope
> that clarifies which spec i was looking for. thanks alot.


gsr - 40
itr - 45
skunk2 stage 1- 43?
Skunk2 stage 2 - 49
Skunk2 stage 3 - 52
Toda A - 45
Toda B - 50
Crower 63400 - 36
Crower 63401 - 40
Crower 63401T - 33
Crower 63402A - 40
Crower 63402 - 41
Crower 63403 - 46


if you have any other VTEC cam specs...please post.

 

good info here