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Old 01-30-2006, 08:31 AM   #1
Veilsidesupra
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Unhappy turbo

Hello everybody. I want to install a sigle greddy turbo on my car but i dont know which one is the best of them. I have an automatic 1994 supra twin turbo. Can anybody help me please. Thank you
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Old 02-02-2006, 01:54 PM   #2
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Originally Posted by Veilsidesupra
Hello everybody. I want to install a sigle greddy turbo on my car but i dont know which one is the best of them. I have an automatic 1994 supra twin turbo....
Unfortunately, the best one is probably not a GReddy. The level of turbocharging technology in GReddy turbos is severely out of date. Even the smallest GReddy turbo (the T-78) has tons of lag, and when boost hits, it comes on like a freight train. This usually leads to wheelspin instead of acceleration.

In addition, ALL of the GReddy turbos are too big to run on the stock fuel system, so you'll need to upgrade your fuel system FIRST. Again, the smallest GReddy turbo is a T78, and if you install cams it can put down over 750rwhp through a 6spd (680rwhp through an auto). All of the other GReddy turbos are T88's and they're all good for over 750rwhp through an auto. Again, they're all too big to run unless you upgrade your fuel system first.

Also keep in mind that your oem torque converter's stall is much too low to run with a T78, and your oem auto transmission can only reliably handle about 500rwhp unless you get it 'built'.

What is your horsepower goal (max)?
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Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.

Last edited by pwpanas; 02-03-2006 at 02:10 PM.
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Old 02-03-2006, 03:28 AM   #3
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you know everything
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Old 02-03-2006, 01:12 PM   #4
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Originally Posted by Thecure634
you know everything
I wish, but thanks!
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Phil '94 Supra Turbo, 6spd, 'APU'+
Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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Old 02-06-2006, 01:59 AM   #5
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you are welcome
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