MIVEC is decent, tuning it on Evo 9s with stock cams mostly helps lower-mid RPM performance. If you had some aftermarket cams ground with the lobe centers retarded too far, then you would have more room in the upper RPMs to play around with tuning the MIVEC up there. At least it doesn't have to be tuned in a way overly complication way like the variable cam stuff found on the newer K20 Honda motors. MIVEC isn't as cool or have the power potential of the old school Honda VTEC though.
Quote:
Originally Posted by Kracka
Yeah, my S2k VTEC lobes were huge.
|
Yea, VTEC lets the Hondas run huge cams without all the idle, driveability, gas mileage, emission, etc problems.
Stock DSM cams have around .349" intake/.350" exhaust lift. Most normal aftermarket cams will be in the .400"-.410" lift range on the intake. A bigger cam(like the Crower Stage 4 415 Race or the FP3x) that will still drop in without major modding done to the head will have around a .425" lift. A drag race only cam that requires moving the valve guides deeper into the head to keep the retainers from hitting the valve seals and some serious consideration about valve to piston clearance might be in the .450"-.490". Then you have a stock S2000 cam that has a .498" lift on the intake.