everything is working on my motor but im not building any bost anyone got any ideas

 

boost leak? no wg spring? what is it tuned on, what engine, what turbo, what exhaust?

 

exhaust is thermal motor 91 si block 93 vtech head turbo is a t3t4 out of a saab waste gate is internal running 255 high flow pump and fmu dont think there are any leaks but how do you check for it

 

Are you running a boost gauge?

How about some pictures...

Did you rebuild the turbo before install?
Did you check the turbo before install?

Do you have any info that would actually help us figure out what your problem is? Because right now you are very vague and we can't read minds.

 

yes im running a boost gauge. turbo had no play or anything spins fine. only thing is the turbo has oil and coolant in and out but the guy i bought it from never had the coolant lines hooked up. i can put up pics if u wanna see how its hooked up

 

pics would help.

 

The coolant lines are there keep the turbo cool, thats why alot of manufactures run oil & coolant cooled turbo to prolong the life of the turbo. Hook them up, although that is not the reason your not building boost. Pics would help out

 

can anyone help me with uploading pics please

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TRE_ &raquo;</TD></TR><TR><TD CLASS="quote">Photobucket and Imageshack seem to be the most popular for picture hosting. Create an account at a hosting site, upload according to their instructions then get the direct URL for the picture(s) uploaded and place it in these little brackets: Or just click the button and insert your picture's URL between the tags.</TD></TR></TABLE>

 

LOL that failed.....


Use http://tinypic.com It will load pics right out of your folder on your computer. No fee, no membership, no account.....

 

heres the pics if more are needed let me know

http://tinypic.com/view.php?pic=os8x79&s=4
http://tinypic.com/view.php?pic=bz2q&s=4
http://tinypic.com/view.php?pic=2ishxl4&s=4
http://tinypic.com/view.php?pic=2rpv8eg&s=4

 

(That turbo isn't out of a saab.)

 

is that electrical tape on your piping, i'm hoping its just covering rust, also, your using worm clamps, you should upgrade those to t-bolts, the worm clamps could be a source for a boost leak. also, check your exhaust manifold, looks like its seen better days, make sure there are no cracks. there is also a good bit of rust on that wastegate, are you sure it's still working proberly and not stuck open? turbod16.com could help you some more. gl

 

yeah, that duck tape looks questionable, as does the wg and manifold, you could unbolt the wg from the turbo, and try to move the lever by hand, it should move fairly easy. you could also connect your wg to a compressor, and see if it pops open, you may want to turn down the pressure tho, 20 psi or less.

 

checked wastegate its ok. uic pipe where the duck tape was had bad welds and couple of cracks in it. u think that would cause a problem?

 

well it all depends on how bad the cracks are, but if theya re any bigger then a few pinholes i doubt it would hold boost. you could build a presure tester by putting endcaps on the pipe by the TB, and by the turbo, and hook up an air compressor, and it should hold the presure without leaking

 

rewelded the cracks and still same thing. any other ideas?

 

bov stuck open? when you are driving arround in 2nd or 3rd and floor it, you dont built boost, but do you hear the turbo spool up at all?

 

turbo is spooling and bov bo everytime i shift. maybe a bad turbo?

 

well if it is blowing off with any kind of force it is prolly building some kind of boost, what does your gauge read from? does it read vacuum and boost? if it reeds vac, do u see it move to -20 or -30 ish when u are idleing and then go to 0 when u accelerate?

 

when you say its not building boost, are you refering to the guage or the butt dyno...might just be a busted guage

 

check your charge pipe

 

yes it does read vac. it goes to about -50 at idle and the first mark above 0 when u here the turbo spooling thats it.

 

something is wrong........... your boost/vac gauge should show no more than 18-20 psi of vaccum, your saying yours is showing 50psi........

 

if that's the case ~30psi on a stock motor...hmmm...doesn't sound like fun unless you like to gamble, maybe you got lucky and just toasted the rings or a head gasket, how's your compression reading?

why's the boost guage reading 50 vacuum??? where did you tee it in? just to make sure you did use a vacuum source after the throttle body right (intake manifold side)