can anyone tell me all the problems of why my car isn't boosting...



i know IC pipings is one...
Vacuum line..
open waste gate.. are there any more i can double check in my car.. my car spools but not that much... but it doesn't seem to build enough pressure to make the waste gate bump.. anyone know what can be the problem...

BTW im running a t3/t40e turbo.. 57 trim.. 450 CC DSM... walbro 255 fuel pump.. Blitz BOV. Golden Eagle Vacuum Manifold..


Modified by em1 Ziggy at 2:26 PM 5/9/2006


Modified by em1 Ziggy at 2:27 PM 5/9/2006


Modified by em1 Ziggy at 2:27 PM 5/9/2006

 

is your turbo ok? last time my turbo stop spinning

 

its a brand new turbo.. i just bought it.. i took the filter out and it looks like its spinning

 

Check your IC pipings again, recheck everything u did make sure everything is tighting.. I had the same problem, went back to check wat was wrong.. One of the ic pipin wasnt tightin enough..

 

everything seems to be tight still no boost my boost guage reads at 18 in vaccuum i've sprayed water everywhere anyone live in LA to check it out! This thing is a headach

 

do you have the wastegate hooked up correctly....if you have the vac line on the top port, you will have problems

 

ill take a picture of everything

 

there pictures up are my vacuum lines retarded or anything someone help!

 

The vacuum lines look ok, make sure the diaphram in the wastegate isn't torn. I used a wastegate line kit and the fitting tore my diaphram, I looked for a long time and finally tore it apart and found that. Also check and make sure the wastegate is sealed to the manifold. Just move your hand around the flange with the car running to see if you feel any air. I never run the wastegate gasket because I used to have problems with them blowing out.

Larry

 

dude, plug your open port on the vacuum manifold

 

^^^ why? he prob didnt drill a hole through it.

 

yup didn't drill a hole im about to take my wastegate apart.... and see what happens.. but i think its my turbo cuz it spools... but i've seen smaller turbo's spool harder then this....

 

was it boosting right before?

 

u need a plug in that vacuum mani

 

i would put all my money on your wastegate. I bet its not holdin anything.

Try another one.. or open that sucker up.. nothing is inside that you can mess up.. opent he wastegate up..

Sounds to me the wastegate is stuck.. or you have a whole in your intercooler or something..

Does the boost gauge try to read boost 1 or 2 pounds?

 

do you have a valve seat on your WG?

 

its something im getting no boost at all on the boost guage

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostincoupe &raquo;</TD></TR><TR><TD CLASS="quote">do you have a valve seat on your WG?</TD></TR></TABLE>

yea do you have the fire-ring in there?

 

i was thinking the fire ring too. but i thought he was was boosting before?

 

i was never boosting at all... yes the fire ring is one look this is how it looks second picture.. what u guys think about my waste gate? is it good?

 

it looks fine, when the spring is in there is it hard to puish up the plunger?

 

yeah really hard

 

i had a similar problem, my filter was to restrictive and it wouldnt make boost. all so check for pre turbo exhaust leaks.

 

how do i check for pre exhaust leaks?

 

well my downpipe has a leak cuz i don't have a gasket inbetween in but i heard you don't need a gasket ..