ok...well after finding what caused the demise of my turbo(oil return pinched in half) and fixing the problem, the new 57 trim turbo still WILL NOT BOOST....there are no leaks ANYWHERE, they wastegate is not leaking, no leaks on the exhaust, no leaks on the turbo and no leaks anywhere in the IC piping...so why the hell won't it boost??? what could cause it to do this....the turbo spins freely....i am so damn frustrated, this is seriously going to make a grown man cry ;(

You cant even hear the turbo spool?

1997 Silver RS
Wiseco 8.8:1 Pistons(back to low compression!)
Eagle Rods
T3/T4 Turbo
Custom FMIC
Greddy Exhaust
440's
Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)

no, no spool.....motofool and i were talking...he came up with the idea that maybe one of the wheels is on backwards...i didn't look at them before i installed it....but could this be the case????

Is the wastegate stuck open?


95 Eclipse RS : 5 speed
15.901 @ 88.34mph
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

>no, no spool.....motofool and i were talking...he came up
>with the idea that maybe one of the wheels is on backwards...i
>didn't look at them before i installed it....but could this be
>the case????


The wheels only go on one way. They're bigger on one side (exducer) and smaller on the other (inducer).

Dude, i swear you've got a freakin boost leak. there is no other way. Pressure test your intake piping, you'll find it, i promise.

Hmmmm...I experienced similar problem after my rebuild. The car runs fine, except, there's no boost. I checked for leaks and couldn't find any. I even sent the turbo back to HRC and they determined it was fine. Finally, after about three agonizing weeks, I removed the front bumper to check my fmic and I discovered that one of the i/c coupler was loose, and the clamp was just dangling.

Do a leak test.

i checked all the pipes last night, and all were still connected and still VERY tight....i'll firgure it out eventually

>>no, no spool.....motofool and i were talking...he came up
>>with the idea that maybe one of the wheels is on
>backwards...i
>>didn't look at them before i installed it....but could this
>be
>>the case????
>
>
>The wheels only go on one way. They're bigger on one side
>(exducer) and smaller on the other (inducer).
>
>Dude, i swear you've got a freakin boost leak. there is no
>other way. Pressure test your intake piping, you'll find it,
>i promise.

the thing is, if it were a leak, you'd still hear the turbo spooling. if it's not spooling then it's gotta be sonething with the turbo/exhaust itself.

are you sure you don't have a huge exhaust leak in the mani or something before the turbo?

now i dont have a star downpipe in front of me but id bet that the turbo need to have the wastegate hole (for interngate) welded up or plugged...

cause if that was blowing the air out into the downpipe or leaking it would never build boost...

Bill

>now i dont have a star downpipe in front of me but id bet
>that the turbo need to have the wastegate hole (for
>interngate) welded up or plugged...
>
>cause if that was blowing the air out into the downpipe or
>leaking it would never build boost...
>
>Bill