ok so i just got my supra stared today after replacing the fuel pump and i had boost for about 30 seconds then i wasnt reading any boost and couldnt hear the turbo should i buy another stock turbo or get it rebuilt or upgrade witch is more cost effiect

Aaahhh...alabama....explains a few things to me.

Thanks for giving us details about what else you hear, why you don't have boost, how it drives, how it idles, if it leaks, if anything is disconnected....among any other useful information. It's so easy to diagnose your car, hundreds of miles away, while you say 'its broken, fix mah cahr'.

Go look everything over, tell us what you find. After, go drive the car, and tell us what you feel. And don't say your steering wheel.

sounds like a boost leak. search the online tsrm for vacuum diagrams and make sure they are all hooked up on your car. also check the ic pipes

first i didnt ask you to fix anything i asked about rebuilding or buying a turbo but since you asked it wont idle and i sound like it has an echaust leak it idled for about 3 min then died and when i drove it it ran weak till high RPM's then it was like a burst of speed throwing me in the seat and a cloud of smoke poured out the back so today i am doing plugs and wires and checking the compression and for leaks

so i pulled the plugs out and they were covered in oil and i was only getting 20 psi on 2 cylinders and 170psi on the rest so i just thought i would buy a new motor would any 87 to 92 turbo motor fit or is the a differance

Good to hear!

Do it and then check everything twice. Spark plugs on a turbo are not as chalenging as the NA. Take a bunch of pics of before, during, and after you do this, that way you know what it looks like to put it all back together. I replaced the spark plugs and wires on mine with NGK, I love them, they look good and are very nice. The wires looked like they were from the junkyard, check this pic out, these are the plugs that came out: -NASTY-

http://img135.imageshack.us/img135/6820/img0532lk9.jpg

so now i am shopping for a new 7mgte for under 1,000 hitting every junk yard i can find that has one that runs and dont smoke i found one with no head of a 90 model i guess i can get my head worked and it will fit right i guess this is what you get when you buy a $500 car at least the body is in good shape with little rust and no dents any ideas

Yea that could work, have a machine shop take a look at the bottom rotating assembly to make sure you get the correct bearings and rings.

i am going to send the head off to make sure it is still good so am not stuck with a good block but a bad head

7mgte to 1jz
 

chamber, i got new 1jz today for my 89 supra and i was just wondering that what changes do i need to make to my car's speedometer and to other body parts.:x:. its pre 89 with square mount.