360 Advice Needed - Autocross / Street Engine Build
No worries, it's nice to hear a comparison to a pretty similar setup / usage, still on-topic... :)
I've been trying to wrap my head around cam timing, but struggling a bit here.
It seems like the key event for DCR is the intake closing ABDC. That changes the dynamic stroke length and this the amount of compression.
As far as DCR is concerned, the longer duration cam just delays that event in the cycle?
I could achieve a very similar effect by installiing this cam at 110° ICL, instead of the as-ground 106° ICL
That drops the DCR by nearly 0.3 points. (8.52 from 8.79)
What I can't picture though, is how that changes powerband, peak RPM, and what happens on the exhaust cycle and overlap.
Anyone know some good links to clearly / simply explain Cam timing and it's effects?
Thanks!
No worries, it's nice to hear a comparison to a pretty similar setup / usage, still on-topic... :)
I've been trying to wrap my head around cam timing, but struggling a bit here.
It seems like the key event for DCR is the intake closing ABDC. That changes the dynamic stroke length and this the amount of compression.
As far as DCR is concerned, the longer duration cam just delays that event in the cycle?
I could achieve a very similar effect by installiing this cam at 110° ICL, instead of the as-ground 106° ICL
That drops the DCR by nearly 0.3 points. (8.52 from 8.79)
What I can't picture though, is how that changes powerband, peak RPM, and what happens on the exhaust cycle and overlap.
Anyone know some good links to clearly / simply explain Cam timing and it's effects?
Thanks!
