Thread: Dialing Cam gears on 20V cams

what about for boost applications, any sense of what direction the 20v cams should be dialled to on a regular sr20ve head? or 0,0 would still be the order of the day?

I guess I am trying to understand the need to advance and bring the 20v cams to 20VE centerlines if they are both 2L and both use the same orientation cam gears.

On a uncut head/block, advancing the intake cam that far will close the intake cam early and kill power after the cam change. There is a reason for the different lobe centers.

I have tested the 20V's that were sent to me from Happynole back to back against N1's with adjustable gears on a SSAC header 20VE setup. In almost every case, 0,0 yields a better overall graph. I can share some of the results with cam gear settings/graphs. Maybe we can start a new thread in the future.

I like these discussions.

I would like to see the graphs with settings!!

We here in PR were in the same line of thinking of 0,0 for best cam gear settings with SSAC until we change to the B18 Tri-Y header even with OBX and Pasesetter (better headers than SSAC IMO) then best results proven on the Dyno and track came down to +3,-5 on both SR16 reg and N1's and huge gains all over the palce with the combination of course tuning for the changes made. Everithing comes down to the header used on the motor I think

With all the different opinions on the best cam setting for the 20V (whether it’s 0/0,+5/+3,+3/-5), prove a point. There isn’t a one best setting for all engines.

Each recommended cam timing is specific to an engine combination. With different engine combination, you will get different optimum cam timing. Unless you have the exactly the same engine combinations as the suggested cam settings, don’t assume they are correct for you. The only way to know is go to dyno and find out for your self.

No, the opposite. In order to achieve the exact lobe center of the 20VE, you would need to advance the 20V intake by +10 and +6 EX.




One of the reason for the different lobe centers is because the two engines(20V,20VE) have different intake and exhaust manifolds. They are different length.

Hrm, so is it even possible to dial out some of the overlap on SR16 cams for boost without sacrificing power? I realize there has to be a sacrifice somewhere, just would like some opinions...

I will be starting with my 20v cams 0,0 on my turbo setup. I have already have info on my setup because its been done before.

Are you using a log mani? If so, I don't think you will be able to take enough out