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Old 09-19-2011, 05:56 PM   #1
warmkop
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Default need advise

Il keep the head gasket on il just upgrade the fuel system.how strong is the stock clutch and flywheel.can you tel me what the diffrence is between e85 an ethanol.thanks for the advise so far you have been a great help.
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Old 09-19-2011, 07:54 PM   #2
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Originally Posted by warmkop View Post
Il keep the head gasket on il just upgrade the fuel system.how strong is the stock clutch and flywheel.can you tel me what the diffrence is between e85 an ethanol.thanks for the advise so far you have been a great help.
Then oem pressure plate will only hold about 400rwhp* long-term reliably. With an Act or RPS or South Bend pressure plate, the oem flywheel and clutch disc will hold about 600rwhp*. With a carbon-ceramic clutch disc, it'll hold about 700rwhp*. Above that point you'll need a double or triple disc clutch.

A lightweight flywheel will improve roadracing performance, but it will not affect holding power.

E85 is 15% gasoline. Pure ethanol can be the start of a great party!

* P. S. Clutches actually hold torque, not horsepower. If you'd like the upgrade points in ft-lbs instead, please send me a PM.
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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; 09-19-2011 at 08:23 PM.
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Old 09-19-2011, 08:27 PM   #3
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Default need advise

so ethanol with so 20% racing fuel sound like a good mix.wil replace the clutch kit put in the fuel system and boost as much ass possible safely.what degree timing is do you run on the supra iknow it depend on the fuel and stuff was just wandering.
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Old 09-21-2011, 12:00 AM   #4
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Originally Posted by warmkop View Post
so ethanol with so 20% racing fuel sound like a good mix.wil replace the clutch kit put in the fuel system and boost as much ass possible safely.what degree timing is do you run on the supra iknow it depend on the fuel and stuff was just wandering.
With E85 you need to flow about 50%+ more fuel, so the injectors have to be that much larger.
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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.
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Old 09-22-2011, 05:53 AM   #5
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sorry for butting in here, but remember as well that if you run e85 or e100 or any mix of that with gasoline (as in a flexfuel vehicle) you must have the appropriate fuel delivery components such as:

stainless steel tank or teflon coated fuel tank, stainless steel fuel hard lines, teflon coated rubber efi hose and a compatible fuel pump/injectors capable of flowing more fuel and combating e85/e100's corrosive nature.

dont forget that if you plan to run both at seperate times or a mix of the two, your tune must change if you run full e85 or full gasoline, or a mix.

e85 is great under boost, as its octane rating sits around 100ish, some say less some say more, i go by testing ethanol from my local e85 station. (god i love having freinds in the lab), and its cheaper than regular gas.

e100 is even more appropriate for boost, as the octane rating has been said to test as high as 120, but dont quote me on that.

anyway, just some pointers, good luck with it!
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Old 09-22-2011, 03:42 PM   #6
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Originally Posted by 87hilux7mge View Post
sorry for butting in here, but remember as well that if you run e85 or e100 or any mix of that with gasoline (as in a flexfuel vehicle) you must have the appropriate fuel delivery components such as:

stainless steel tank or teflon coated fuel tank, stainless steel fuel hard lines, teflon coated rubber efi hose and a compatible fuel pump/injectors capable of flowing more fuel and combating e85/e100's corrosive nature.

dont forget that if you plan to run both at seperate times or a mix of the two, your tune must change if you run full e85 or full gasoline, or a mix.

e85 is great under boost, as its octane rating sits around 100ish, some say less some say more, i go by testing ethanol from my local e85 station. (god i love having freinds in the lab), and its cheaper than regular gas.

e100 is even more appropriate for boost, as the octane rating has been said to test as high as 120, but dont quote me on that.

anyway, just some pointers, good luck with it!
Great post - very informative!
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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 10-17-2011, 08:01 PM   #7
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Default need help makin power

wat flywheel is better aluminum or act street lite steel flywheel need to buy new one
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Old 10-18-2011, 11:53 PM   #8
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Originally Posted by warmkop View Post
wat flywheel is better aluminum or act street lite steel flywheel need to buy new one
I assume you mean "what" when you said "wat". Please let me know if this assumption was not accurate. If you meant something else, this response may not make any sense (I've never heard of a "wat flywheel" - maybe that's a new brand? If so, please provide a link):

The decision depends what you're going to use it for. If you're going to be drag racing with high horsepower, a heavier steel flywheel makes a turbo car much easier to launch. If you're going to roadrace with a good traction control system (eg. RaceLogic), then as I already said above a very lightweight aluminum flywheel will let your driveline rev up much more quickly. For daily-driving street use, the oem dual-mass flywheel can't be beat...it's heavy which makes for foolproof smooth launches, and the dual-mass dampening keeps everything as quiet as possible.
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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; 10-19-2011 at 12:02 AM.
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Old 10-19-2011, 03:44 PM   #9
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Default Need help making power 94tt

I meant what sorry.I decided to build the supra for the dragstrip.
Took the clutch out last week but the flywheel has to much play/wear need to replace it.
Wil the stock ignition system be okay with the aftermarket managment.
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