JZA80 non turbo standard can it be turbo'd safetly?
Hi there from Dunedin New Zealand .
I'm looking at purchasing my first supra. I've always wanted on buy one but in NZ they are still expensive to buy the TT version but anyways i want a single turbo one.
So im looking at a JZA80 supra now my question how will a JZA80 non turbo hold out in terms of turbo power do i need to forge the internals etc? Cus if i buy one i want to turbo it asap. Id be looking at roughly a 600 hp turbo. I've talked to a few people and they seem to think that roughly 12 psi but that could be wrong.
Eventually i want to totally forge the engine and bore it out to 3.3L. Ill be looking at getting a big single turbo and aiming around the 400KW region but first of all i want a turbo one.
Well, the only way to get a JZA80 with a single turbo is to change out the twins. As I recall, there were no factory singles in the era we had imported here.
The 2JZ-GE has been turboed, and there are many kits out there for them, but as to the top power safely you could achieve on stock internals I couldn't say...never researched it.
PSI is not a measure you can use to estimate power. Every turbocharger will provide a different airflow when strapped to a specific engine, and then only with 2 identical turbochargers can one safely say that it will produce an estimated amount of power with a specific pressure. Different engines or different turbos result in different airflow at different pressure levels and so you get different amounts of power.
Another problem you will want to pay attention to is the transmission. The W58 is good for stock power of the GE, any extra power and it likes to chunk gears. The automatic transmissions are good and will hold power, and the Getrag V160's are great and awesome but often cost $2000USD++.
The biggest issue with the GE head is that the head flange is different, so there really aren't very many decent exhaust manifolds that bolt up, and even less intake manifolds. However, with enginuity it shouldn't be a problem.
@DubVipers, if you search for VVTi, you'll not that if you can avoid VVTi, it's probably for the best. It just adds complexity where it's really unneeded.
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1988 Mk3 Turbo Targa - 17.5psi, 486hp, 494tq.
[img]http://www.**********s.com/supra/rsw_sig_stupidTN.jpg[/img]
Who came up with this 500px wide BS?
You don't need new internals, oil squirter's, blah, blah, blah. You can safely run the 2JZ with a small low boost turbo kit and use a piggy back to do the fuel enrichment.
The thing of it is though, for the cost of a turbo kit you can buy a used GTE.
The tranny can be addressed with an R154 swap using 1JZ parts, or by going with an automatic model.
Quote:
Originally Posted by Jeeves
Well that's the thing, standalones aren't exactly cheap
Unless its a Megasquirt.
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Don't you SAS me boy.
Please wheel responsibly.
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