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hmong337 · 08-07-2007, 05:42 AM

this is going pretty good so far.......

this is what i'm coming down to. from my information digging, the 3vzfe seems to have a less fussy ecu and is pretty much "in-detonable". there isn't factual scientific data that says that the heads flow better on the 3vz but from what a lot of people are saying, they do flow better. the only downfall that i see with the 3vzfe is that the manifolds make it a pain in the ass to hook up a turbo system. as well, it's 0.4 liters less than the 5vz.

further, with the 5vzfe, it has more displacement- enough said. and, the exhaust manifolds are angled in such a way that the flanges are pointing towards the transmission casing; making it easier to hook up a turbo system like on node's cars. i don't see very many downfalls with this engine other than the internals being weaker and maybe the heads not flowing as much. yet, forged goodies would replace the internals and a good porting and polishing job should do the trick.

so as of now, i'm leaning towards the 5vzfe. not sure on the ecu situation of this engine but if i'm going to take this car that far, it will be going stand-alone... and as far as i know, weasy2k is hooked up with stand-alones from hydra.

a really big negetive about both engines... the intake manifolds look like crap and would have to be thrown out in place of a custom one like node's to make it more "turbo plumbing friendly".

08-07-2007, 05:42 AM	#5 (permalink)
hmong337 Emperor Jspec Join Date: Jun 2005 Location: Ontario, Canada Posts: 928 Thanks: 103 Thanked 48 Times in 47 Posts iTrader Rating: (1/100% )	this is going pretty good so far....... this is what i'm coming down to. from my information digging, the 3vzfe seems to have a less fussy ecu and is pretty much "in-detonable". there isn't factual scientific data that says that the heads flow better on the 3vz but from what a lot of people are saying, they do flow better. the only downfall that i see with the 3vzfe is that the manifolds make it a pain in the ass to hook up a turbo system. as well, it's 0.4 liters less than the 5vz. further, with the 5vzfe, it has more displacement- enough said. and, the exhaust manifolds are angled in such a way that the flanges are pointing towards the transmission casing; making it easier to hook up a turbo system like on node's cars. i don't see very many downfalls with this engine other than the internals being weaker and maybe the heads not flowing as much. yet, forged goodies would replace the internals and a good porting and polishing job should do the trick. so as of now, i'm leaning towards the 5vzfe. not sure on the ecu situation of this engine but if i'm going to take this car that far, it will be going stand-alone... and as far as i know, weasy2k is hooked up with stand-alones from hydra. a really big negetive about both engines... the intake manifolds look like crap and would have to be thrown out in place of a custom one like node's to make it more "turbo plumbing friendly".