Go back to previous topic
Forum nameTurbo/Nitrous Tech
Topic subjectjust went turbo need help
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i8&topic_id=38118
38118, just went turbo need help
Posted by bomex, Jan-27-03 06:22 PM
just put the custom turbo setup on, a t3 with a smic. everything looks good. it start up good fuel presure 45-60 at ildel, vuc 15-20 but cant boost higher than 2 are 3 pounds check all the vucum hoses looks good check the intercooler all tight. wat im thinking is my exhust piping im still running on stock pipe with a muffer. bout to get the muffer shop to make me a 3in piping but that wouldnt stop me from boosting higher than 2 are 3 pounds would it.
38125, RE: just went turbo need help
Posted by pn0ymahal, Jan-27-03 07:03 PM
you could have your idle fp about 47-55psi is good. hmmm bigger exhaust piping will help, and get a boost controller to up the boost up a bit. re-check all your intercooler piping for leaks.
good luck
Michael 99gs
HRC Stage 2
Stage 3 process begins gathering parts for rebuild

http://www.dreamwater.net/purplebeast
38126, RE: just went turbo need help
Posted by RoboTechDSM, Jan-27-03 07:04 PM
A small exhaust piping can restrict you from making more boost. Also, there's gonna be some type of pressure drop along the intercooler and piping.
38130, RE: just went turbo need help
Posted by Matt_95tgs, Jan-27-03 07:34 PM
If you can only build 2-3 pounds, youdefinately have a big leak somewhere. The stock piping is not even close to that restrictive.
38131, RE: just went turbo need help
Posted by RoboTechDSM, Jan-27-03 07:38 PM
Wasn't there some type of ghettofied device, that you can make outta Home Depot shit to test for piping leaks.
38132, RE: just went turbo need help
Posted by RoboTechDSM, Jan-27-03 07:41 PM
aaaaahhhhhh.............here, I forgot I had the sites saved under one of my e-mail folders!!!!

http://www.vfaq.com/mods/ICtester.html

http://www.stealth316.com/2-pressuretester.htm

http://store.yahoo.com/machv/jkleaktester.html
38154, RE: just went turbo need help
Posted by whodatt1, Jan-28-03 05:36 AM
here is what it should look like... just plug the air compressor to one side and listen for leaks! :thumbsup
38165, RE: just went turbo need help
Posted by ner947, Jan-28-03 07:54 AM
do the boost leak check, if that doesn't work you can always do the "wastegate boost signal hack" to the back of the intake manifold instead of the compressor housing. i got much better spool up that way, and when i was at stage 1 i got exactly 5 psi instead of 3 to 4.
38211, RE: just went turbo need help
Posted by RyaN95i4, Jan-28-03 05:05 PM
>If you can only build 2-3 pounds, youdefinately have a big
>leak somewhere. The stock piping is not even close to that
>restrictive.


When i was stage 1, i got 8psi w/ open downpipe, and only 3psi with the stock exhuast.

stage 1, so there was no where for boost to leak, and as soon as the downpipe was unhooked, 8lbs...