06-26-2006, 03:57 PM
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Stock
Join Date: Jun 2006
Location: Colorado
Posts: 3
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Questions about the oem fuel system
New here with some questions...
A little background on me and my car, I've owned 1 turbo car, and that's my WS6. I basically had to learn everything that I could about the forced induction world through trial and error, that being said it's got a 402ci (6.6L) stroker and a PT88 with all the suporting mods making a little over 920/900 on 20psi. I've done as much searching as I could and I couldn't come up with some solid answers. From what I've read the stock bottom end is extremely durable and that might be an understatement, I've also read that the stock twins are good for around 550-600rwhp.. or I might be a little off? My main concern is the fuel system, at what RWHP do you need to start worrying about the fuel pump/lines/injectors/rails? Also about what psi (I know psi is relative, but I don't know how well the 2JZ's flow compared the the LS1's) can the stock fuel system take with 91-93 octane? Sorry for all the questions, just trying to do some research and gain some knowledge before I go out and buy a Supra. (BTW I got my first ride in a supra. My friend has a t78 single and I was more than impressed!) -Trevor
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1998 Formula WS.6 2006 GSX-R 1000 |
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06-27-2006, 02:03 AM
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#2 |
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Stock
Join Date: Jun 2006
Location: Colorado
Posts: 3
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No one knows?
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1998 Formula WS.6 2006 GSX-R 1000 |
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06-27-2006, 09:09 AM
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
Quote:
You'll also need to run race fuel or meth injection for any boost level above 16psi on 93 octane. This is not dependent on the fuel system...it's dependent on the oem ecu's timing curve and a simple boost vs. octane caculation. In other words, even if you had 1000cc injectors installed, you still wouldn't be able to boost more than 16psi on 93 octane pump gas. P.S. I only check the forums about once a day, so please bear with me if I don't respond immediately. You can also try emailing me at pwpanas@comcast.net.
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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; 08-21-2007 at 01:56 AM. |
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06-27-2006, 12:10 PM
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Stock
Join Date: Jun 2006
Location: Colorado
Posts: 3
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Thanks man, you answered everything I needed to know. If I have any other questions I'll shoot you an email...
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1998 Formula WS.6 2006 GSX-R 1000 |
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08-19-2007, 01:22 PM
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#5 |
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Stock
Join Date: Aug 2007
Location: Manama
Posts: 4
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J Spec Supra
Hello Guys, i am new here and i am new with my 94 supra. i am having a problem with starting the car, i was troubleshooting and i found the fuel pump not working, i conected it direct and the car started nicley, one more thing 5 day before the problem the car dosent go after 3000 rpm today after i connected the pump directly it was exellent.. so please can you guys send me the wiring digram for a 94 supra j spec. thank you.
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08-19-2007, 03:39 PM
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#6 |
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Stock
Join Date: Aug 2007
Location: Manama
Posts: 4
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hello, can i get the wiring digram for the fuel pump mkIV supra please. thank you
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08-19-2007, 03:49 PM
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Supra Owner
Join Date: Oct 2005
Location: GA, USA
Posts: 2,209
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Quote:
http://www.mkiv.com/manual/1995_elec...ual/index.html
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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; 08-19-2007 at 04:01 PM. |
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08-19-2007, 04:40 PM
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#8 |
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Stock
Join Date: Aug 2007
Location: Manama
Posts: 4
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Thanks alot.....
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