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10-23-2010, 11:41 PM
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#1 |
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Stock
Join Date: Oct 2010
Location: Canada
Posts: 27
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okay well lets just set it up so 800-900whp is possible, the parts may be more expensive now but I'm not into the inconvenience.
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10-24-2010, 12:51 AM
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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:
After we get that nailed down, I'll need to know your application. Oh, and is your Japanese-spec Mkiv Supra Turbo an auto or a 6spd? By the way, have you read these two threads from the MKIV FAQ?Lastly, it's not only that the parts are more expensive for 800+rwhp...you have to upgrade many more of them. Examples: For BPU, you don't need a new exhaust manifold, but for aftermarket turbos, you do need to replace the oem exhaust manifold with an aftermarket exhaust manifold/header. For BPU, you use the oem ecu. For 800+rwhp, you'll need to replace the oem ecu with an aftermarket ecu. Etc., etc., etc...
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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. Last edited by pwpanas; 10-24-2010 at 01:13 AM. |
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10-24-2010, 11:01 PM
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#3 |
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Stock
Join Date: Oct 2010
Location: Canada
Posts: 27
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I decided I'll just go with 500 approx rwhp, give or take fifteen but 500 would be nice... Then if I want to go bigger later I can. Is this possible with bpu++++? And still reliable.
Nevermind you clearly said 450 was possible with good compression bit not 500. If I was to go with 500 still would it involve turbo upgrade? Last edited by pwpanas; 10-24-2010 at 11:29 PM. |
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10-24-2010, 11:31 PM
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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:
If you want to go with the goal of 450rwhp+ and bpu++++, that is only achievable with a just-like-brand-new engine, just-like-brand-new turbos, and a 6spd. Are you willing to swap out these oem parts, depending on their mileage/hours/condition? If not, 425rwhp (with a 6spd) is probably the max you can shoot for - and even that level depends heavily on those same components already being in very good condition (but brand-new condition isn't necessary for 425rwhp). If your compression numbers are low, or your oem turbos have a lot of miles/hours on them (or they've been driven very hard), and you've got an auto transmission, 375rwhp or so may be the best your setup can achieve. Again, it's all a matter of $, time and experitise. Again, are you 6spd or auto? Again, what is your application?
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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. Last edited by pwpanas; 10-24-2010 at 11:40 PM. |
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10-25-2010, 01:05 AM
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#5 |
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Stock
Join Date: Oct 2010
Location: Canada
Posts: 27
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6 speed manual trans, I don't think I would want a single turbo would it be possible to stay twin and reach 500whp? I just driving the car as a summer car and take it to the strip sometimes to race other people, it's like a Friday night thing at a local drag strip.
if I was to go with the 425-450 rwhp how much would it cost for the new turbo's, etc. that I would need to be brand new again? okay I made my decision, i'm gonna go bpu++++, we will get whatever whp out of it we can without turbo upgrade, if i want i can do that and change everything later but as a daily driver 400whp approx, should do.. thanks for the help and if you could let me know what I'd need, that would be much appreciated, thanks. Last edited by pwpanas; 10-25-2010 at 04:44 PM. |
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10-25-2010, 04:49 PM
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#6 | |||
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
Quote:
Quote:
I've never bpu'd a Japanese-spec Mkiv myself. I believe you'll also need a speed limiter defensor. We may also need to find a way to get your downpipe connection made larger so you can run a full 3" US-spec downpipe.
__________________
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; 10-25-2010 at 04:53 PM. |
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10-25-2010, 05:01 PM
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#7 |
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Stock
Join Date: Oct 2010
Location: Canada
Posts: 27
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So would it be cheaper to just go bpu++++ and make what I can, like 400whp or 425 or whatever I'll get or single turbo and make 500whp?
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