ls vtec??
#1
ls vtec??
Today i was at a car show and i saw a boosted ls vtec. Wouldn't that be stupid to get a vtec head if you boost an ls motor? You don't need the powerband in a vtec with turbo and you have too much compression to run alot of boost with a vtec head. Am i wrong?
#3
RE: ls vtec??
ORIGINAL: DonkeyBalls
Today i was at a car show and i saw a boosted ls vtec. Wouldn't that be stupid to get a vtec head if you boost an ls motor? You don't need the powerband in a vtec with turbo and you have too much compression to run alot of boost with a vtec head. Am i wrong?
Today i was at a car show and i saw a boosted ls vtec. Wouldn't that be stupid to get a vtec head if you boost an ls motor? You don't need the powerband in a vtec with turbo and you have too much compression to run alot of boost with a vtec head. Am i wrong?
#7
RE: ls vtec??
Well, there are two schools of thought there. One is that vtec is tougher to tune and the non vtec has a smoother tourque curve. The other is that vtec heads shine in vtec (aka 5500+ rpm) and the ls motor isn't designed for those revs.
I would like to see some numbers on similar turbo set ups of the two configurations, but I would be willing to bet that the ls/vtec still makes more power due to head flow. Of course you are looking at over a grand for that head swap so it may not be worth it.
I would like to see some numbers on similar turbo set ups of the two configurations, but I would be willing to bet that the ls/vtec still makes more power due to head flow. Of course you are looking at over a grand for that head swap so it may not be worth it.
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