...That is why stiff ramps on old Skunk2 cams were so harsh on tensioners
Yes
deibral, that's a good point. Drag Cartel's profile technique is different as S2, TODA and that stuff. They have a more flat opening ramp, therefore they have great max VTC potential on short stroke engines, but their closing ramp is steeper than other stuff. This is good for high speed engines, as the closing ramp gradient get's more significant, but increase the forces on the keepers, valve seat wear and spring damping effort, but is very smooth to the tensioner, as this guy seats on the pull side of the timing chain.
DC 3.2 or Elite have higher lifts.
Not to say a questionable high lift.
They are maybe less stiff byt you have significant VTEC kick on those cams
The bigger the difference between low and high speed lobes, the bigger the torque, noise and handling difference. It's always a compromise between idle roughness, smoothness in VTEC transition and high end performance. DC has a special interpretation of doing that compromise
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Next 2 weeks I should have comparison of TODA D and DC Elite from my dyno on the same engine. But just right know I can say that VTEC crossover is like 400-600rpm higher on DC Elite what shortens effective high torque range on K24 engine much. However DC Elite may give like 5-10HP more on the top.
Great, I am looking forward to it. I don't believe DC's Enduro camshaft will make more power than the TODA D. In that case you need bigger intake ports to give the shorter duration but higher lift cams a chance to produce an higher VE than the TODA D (267 °ca of TODA D vs. 257 °ca of DC EE). I am curious what your engine will tell us about it.
Markus
