What would cause no boost. My car revs up to 7k rpms. I can hear the turbo spool up till aroud 4 k and hit 0psi but it wont go over 0psi. I dont even have a downpipe on my car right now, would that cause it not to gain boost or would it be more of a pipeing leak. Thanks

 

Check all your VAC lines and couplers for a leak.
Also make sure the bolts are tight to the manifold and the four bolts are tight holding the turbo onto the manifold..

Not having a downpipe is a good thing.
Less exhaust the better.. So thats not your problem.

 

Do you have your Wastegate/BOV hooked up? Either one could be opened and letting your air out. If nto do what ^^said.

 

yea i have them all hooked up. I am a noob to turbos. I have the boost gauge, bov and wastegate hooked to a vaccum line above the throttle body so i assume there closed. thanks, Jim

 

now the lines that hook up to the bov and wastegate, there suppose to have a vaccum sucking them right (not in a sexual way) just to make sure

 

Yes they should all be hooked up to a vacuum source. A good easy one to use is the brake booster line. Do you have pics of your engine bay? Might be easier to spot what might be wrong.

I have my Guage, BOV, and WG all hooked up to the brake booster line. You have to make sure the line has a good vacuum in order to get correct performance.

 

yes they have a sucking action to them hence the word vacuum...sounds like there is a vac leak somewhere...did you try what BOOSTFREAKS said to do?

 

sorry this is the best picture i got, its at a muffler shop so i cant get a good picture. Does anyone have a good diagram or picture of where there vaccum lines go, thanks. Jim

 

Dude, I didnt have a downpipe on my car and I couldnt build any boost eathier, get a downpipe on it and it will build boost, well it should if everything else is put togeathor right.

Good luck

Blaze

 

if someone can just get me several pics of where the bov, wastegate and gauge go please post here or send to my email classictimmy04@hotmail.com very much appretiated, thanks!

 

that would be awsome if it was just the downpipe.... i have nothing, my o2 isn't even hooked up but it will be tomorrow morning. thanks... anyone else got ideas?

 

it kinda makes sense that you would need some backpressure for that turbo to be able to compress air. If you have open exhaust, its just gonna release the air instantly and not hold and backpressure... thats just what i think anyways... im hopeing thats it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90AcuraIntegra04 &raquo;</TD></TR><TR><TD CLASS="quote">it kinda makes sense that you would need some backpressure for that turbo to be able to compress air. If you have open exhaust, its just gonna release the air instantly and not hold and backpressure... thats just what i think anyways... im hopeing thats it</TD></TR></TABLE>

defiantly not, you want the lowest amount of back pressure possible, why else wouldpeople run 4 inch downpipes?

 

are you driving the car or just revving it in neutral?

 

i was driving the car

 

what port do you have the wastegate VAccum source hooked up too? also go over EVERY single vaccum line on the car to be sure. while the car is idling look or feel inside the BOV opening and you should feel the plunger open(be careful not to put finger directly under plunger)
The BOV should close soon as you hit the gas. i'm almost 99.9% sure this is not the case but check it anyways to be sure you have a good vac source.

Check all your couplers, intercooler piping, basically check to be sure everything that could possibly be loose is not loose.

100% sure it's not the downpipe, you got either a boost leak or improperly setup wastegate.

And yes i know i mispelled like 10 things but who cares.

Brain

 

do you have an internal wastegate? If so, is it hooked up to the flapper right now, and is that flapper tight against the hole?

 

i got a external wastegate. I got it into boost today, it was the intercooler pipeing but my idle is 6k! I cant figure out why! it was like that before i boosted

 

air leak... take off your charge piping at the throttle body, and block it off, if the motor doesn't slow down, then its something off your intake manifold.

 

i got it, the intake manifold gasket was bad, thanks guys!

 

gad to see HT help for once

 

you can also try "pressure testing" the charge pipes/fmic/IM to find possible leaks...for example