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Originally Posted by TRAFIK
I don’t really want to get into this hp battle (although very informational).
But I really don’t see the stock twins pushing that much psi and rwhp...
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You're correct. They can't. Not even close.
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Originally Posted by TRAFIK
...It’s not impossible...
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Omg not you too!? It's not possible! Really! Not even close! Hundreds of people have invested thousands of $ and literally years of time. There's just no way to get them to push more than very close to 500rwhp. In fact just getting to about 450rwhp (bpu++++) already costs at least a thousand $ (probably a lot more), AND you have to have a low-mileage Supra to get even that high.
Upon what data do you base your statement?
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Originally Posted by TRAFIK
...but who the hell would want to stress the car so much?...
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It really doesn't "stress the car" at all. With a mid-size or large single turbo and race fuel, an Mkiv Supra can handle 650rwhp without any problem.
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Originally Posted by TRAFIK
...Pushing the stock tt limits it’s not good even with bpu's. I would probably start thinking of single or bigger tt upgrade around 500. Just my $0.02...
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I agree that pushing the oem twins to their limit of 450+rwhp will be hard on them. Getting them past 500rwhp is near-impossible; getting them to 650rwhp is both impossible and rediculous.
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Originally Posted by TRAFIK
...Just for my info…anybody who is running stock twins,
How much are you pushing? What is your limit? Where would you say “No More”.
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When I was running stock twins, I made about 400rwhp before I went to a single turbo, and that was full bpu+, with about 20 or 21psi of boost and race fuel. It doesn't matter where I would say "No More", because the stock twins do it for you. They say "No More" at about 25psi of boost and about 475rwhp at average-best, assuming your 2jz-gte is in very good condition and your turbos are low-mileage (ideally, less than 25,000 miles on them).