Originally posted by machinehead
thank god someone agrees with me! the other day i was argueing with some kid with a v-tec civic that if you want flat out performance, v-tec is just a fuel saver, but if you need a daily ride thats when its a performance upgrade. I think JUN also makes a similiar kit.
VTEC is a system to improve engine breathing at higher rpms.
it is also a system that allows for a very flat torque curve.
the system was designed for NA use only and IS useable in drag racing.
DOHC VTEC has nothing to do with gas mileage.
explain why the h23a1 (non-VTEC) makes 160HP at about 6000 rpm, CR=9.8/1
and the h22a1 (VTEC) makes 190 HP at 6800 rpm, CR=10/1
both are DOHC
how did they gain 30 hp in only 800 extra rpm and .2 CR...
while losing a liter at the same time.
did the 30 HP come from better gas mileage? :fawk:
~boom