06-08-2010, 06:50 AM
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#1 |
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Intake
Join Date: Apr 2010
Location: Tulsa, Ok
Posts: 36
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Boosting an MK4
Hey so I had a quick question, with bpu parts on a 94 supra with stock tt's, 6speed, and stock intercooler, my question is, is 14,15 psi safe with the stock intercooler on 93 octane and what kind of hp will I be looking at with bpu mods at these boost levels thanks in advance!
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06-08-2010, 03:21 PM
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#2 | |
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
16psi is safe* with fresh 93 (r+m)/2 octane fuel with the oem ecu, but no more. 17psi+ will slowly but surely damage the engine and reduce compression. *Disclaimer: Ymmv 
__________________
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. Last edited by pwpanas; 06-09-2010 at 04:11 AM. |
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06-08-2010, 03:35 PM
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#3 |
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Intake
Join Date: Apr 2010
Location: Tulsa, Ok
Posts: 36
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It has 107,000 miles on it I'm not sure on compression but it drives great, was never beatin on it pulls very strong , no turbo smoking or anything like that. If you could give me just a ball park average until I get compression tested but what I'm mainly concerned about the psi my stock intercooler can take than how much hp I'm getting
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06-09-2010, 04:00 AM
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#4 | |
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
The stock SMIC can easily take 15 or 16 psi. Although the end-tanks are plasic, you could hold them on with a metal tie-down strap if you had to (it's been tried and it works - but only necessary at 20psi+ on race fuel).
__________________
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. Last edited by pwpanas; 06-09-2010 at 04:10 AM. |
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| Tags |
| boost, bpu, horsepower, mods, psi |
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