Ramp speed?

[troubles brewing]

Does anyone know if the difference between advertised duration and duration@ 0.050 equals the ramp speed?
That being the greater the difference the faster it ramps.
Does that make since, or did i just make it up.
Thanks; Rick

 

[troubles brewing]

I think i my have that backwards.The greater the difference the slower it ramps?
Correct me if you know.
Thanks; Rick.

 

[Marcohotrod]

the greater the difference the slower the ramp, the less aggressive. over the years cams have gotten more aggressive, but they can be noisier and wear faster

 

[moper]

No. That only tells you about the very early stages of the lift cycle. If you really want to get an idea, compare the .050" duration vs the .200" duration.

 

[troubles brewing]

Thanks fellas,i can put up with the noise running straight 2inch headers. I don't think i'll
hear it.I did have it backwards.
That's a good idea comparing it at .050-.200. I will try and find out on this voodoo-288/296 cam.Then compare it to the XS290S cam for ramp speed.
Thanks a lot; Rick.