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Originally Posted by 90lexus
...I was going to replace the heads and pistons, make my own intake, and get a new intake manifold, and from what i understand those are the only things that are different from the 2JZ-GTE and the 2JZ-GE...
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Wrong...very wrong. There are MANY other differences, as detailed in many threads in this and other forums, as well as the original 'yota docs:
http://www.mkiv.com/specifications/ncf/ncf93/
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Originally Posted by 90lexus
...Okay, well would the connecting rods and crank be able to handle the load?...
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Crank yes (same in 2jz-gte and 2jz-ge). Rods I can't say 100% for sure (since I don't work on very many n/a's), but I'd guess that for only 600rwhp: yep.
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Originally Posted by 90lexus
...Well I'll just get a 2JZ-GTE head. How much are the gains from a port/polish and all that?...
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Whoa hold on there. You do realize the 2jz-gte head requires a totally different ignition system, and a different exhaust manifold (due to the port spacing), right? I'm pretty sure that the ports for the intake manifold are different as well...
A 2jz-g
te head will flow 600rwhp no prob, with no porting & polishing.
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Originally Posted by 90lexus
...What is the highest comp. ratio i can go with a turbo?...
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With pure methanol you could probably run 11:1 and turbo it too. Pump gas is a totally different story. It all depends how much boost you're going to run.
Normally, the way you make 600rwhp with a 2JZ-G
TE, you run 8.5:1 pistons, about 25psi of boost, and 100 octane race fuel.
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Originally Posted by 90lexus
...Thanks for the help, even though you haven't even touched on specifics your information is extremely helpful for planning out my project.
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I'll get into as many specifics as I can...ask away...