1stGenAllTrac":o37l6sbf said:
yeh i think i had a SCC or Turbo mag with a MR2/v6 swap they were going to super/turbo charge it for some god-aweful reason. they said the 3s and the 1m were close in weight.
it'd be different for sure, but what would the point be if you can get similar numbers out of the 3sgte's iron lump that's already in there.. if you wanted to make serious numbers with the aluminum block v6, it'd have to be sleeved. then toss a supercharger on it with decent flow and a truck diff (which i imagine weighs more too)..
it's so crazy it just might work
It's not so much the numbers, but the range of numbers. A larger engine will have a larger power band and for a street car, this is very important.
With tubular exhaust manifolds, aluminum block, and no turbo, the 1MZ-FE is pretty damn close, if not lighter than a complete 3S-GTE.
As for fitment, it would be interesting to compare the transaxle out of an AWD Highlander to see if you can swap the transfer case section over.
If anyone is interested, I'll see about snapping some photos of the underside of one for comparison purposes. My girlfriend's mother recently purchased a Highlander and we'll be visiting next weekend.
As for engine durability, from what I have seen, the only weak parts are the rods and pistons which seem good for about 300bhp. Unless you're doing something dumb, the crank and block seem to be fine all the way up to 500bhp or so. Brad's engine (Yellow MR2 that won SCC "street car challenge" last year) ending up having hairline cracks in the crank, but he was making obscene amounts of power anyway.