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Old 05-31-2008, 10:28 AM   #1
Fredde
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Default My supra has about 50 hp:( whats wrong?

Hi!

my supra turbo revs slow, sputters when i hit the gas. and is really powerless. its been sitting for 3 years so i?ve changed all vacuumlines and some hoses. The bov is halso replaced scince it was stuck in open.

The idle is close to perfect, and i get 0,45 bar (correct) boost from the turbo.

I am not getting any codes.

Anyone got an idea?

/fredrik
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Old 05-31-2008, 02:10 PM   #2
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Check your timing.
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Old 05-31-2008, 04:39 PM   #3
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ok, i will do that, but i cant find out how to do it, i?ve searched the forum without succes, and tsrm says i need a strobe light, cant it be done without a strobe light?
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Old 05-31-2008, 08:58 PM   #4
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no you have to have a timing light to properly set the timing.
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Old 06-01-2008, 06:55 PM   #5
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You should invest in one of these.

They are around 50$ at your local parts house.

Maybe you can rent one for a day. But you're going to need one full time at the drop of a dime.
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Old 06-02-2008, 01:51 AM   #6
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what engine do you have? 7m? 1g? 1jz? check for loose connectors, vacuum hoses, and boost leaks. did you drain the old gas?
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Old 06-02-2008, 06:32 PM   #7
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check fuel pressure. but first since its been sitting for 3 years i would go ahead and change the fluids the fuel filter. spark plugs, wires, stuff like that then try it. i have seen a cars fuel filter stop up when nothing is going through it for a while kinda like gum up. but never stopped working. if your not getting enoguh fuel your not gonna get power. same with air check intake clean filter. or replace depending on what your doing. but i would recommend check fuel pressure on a 1989 toyota supra turbo 7mgte it should be around 35-45 psi running. when you turn the key it should go up to somewhere around there if it doesnt i would first change fuel filter then check agian.

parts you need:

fuel pressure kit
line dissconnect tool
metric set of wrenches
sockets and rachets

its very simple the fuel filter is located right next to the lsd ( limited slip differential) i dont remeber exactly where but close really close. then check it out agian with the fuel pressure guage.. also since its been sitting for 3 years the gasoline might have lost its volatility so you might wanna get some 93 octane and throw in there and see if that helps. or octane booster thats prolly a better price then 4 something damn dollars for a gallon. if that doesnt work post that it didnt work and i will try to come up with something else.
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Old 06-04-2008, 10:21 PM   #8
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Quote:
Originally Posted by tsupra89 View Post
also since its been sitting for 3 years the gasoline might have lost its volatility so you might wanna get some 93 octane and throw in there and see if that helps. or octane booster thats prolly a better price then 4 something damn dollars for a gallon. if that doesnt work post that it didnt work and i will try to come up with something else.
Great advice!!!
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Old 06-05-2008, 02:35 AM   #9
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well i try my best let me know if anything works. that i gave you advice on
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89 Supra Boosted 11psi
lexus afm
k&n air system
aeromotive fuel pressure regulator
walboro fuel pump
stage 3 weitght reduction
koki style tail lights
silver and black 2 tone paint
Enkei rs7 17" 17.5lbs each
hankook ventus hr2's 225/45/17
apc hood pins
yellow fogs
-----------------
Soon To be
Megan racing seats, roll bar, either takata or sparco harnesses
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