4_door_teg

Ok I'm still stumped

My wastegate (hks) has a 9.7# spring but it seems the most boost I can ever make is 6.5#'s. I've even unhooked the wastegate line and still 6.5#'s. I'm 95% sure there's no leaks in the piping/exhaust.

Is there anyway to narrow down what could be wrong? Here are the few idea's I have, think they'll work?
-Remove the wastegate and see if I notice anything wrong (dont have much to compair it too though)
-try blocking the wastegate off on the manifold and do an easy run without a wastegate.

If I run w/o the wastegate and it still only make's 6.5#'s is there a way to tell if it's the turbo or if it's a leak somewhere? I know it could overspin the turbo but I don't have any other ideas.

Any help is appreciated as I'm pretty stumped

TypeSLO

what boost controller and how do you have the vac lines hooked up?

4_door_teg

I have all my vacuum lines hooked up to a vacuum manifold t'd off the break booster line.

I do not have a boost controller. That just reminded me that the nipple on the top of my wastegate isn't hooked up to anything. I remember reading somewhere that it didnt matter. Does it?

093turbo16

iTrader: (2)

You don't need the top port hooked to anything. Check all your charge pipes for leaks first, don't assume.

4_door_teg

Tonight I popped a vacuum line off and hooked my compressor up to it. Put pressure in the system and didn't hear/feel any leaks at all. You can hear the wastegate clicking open and also feel air shooting out of the top nipple.

Any thoughts?

4_door_teg

I also just thought of this. I bought the turbo with the internal wastegate flapper thing welded closed. Possible that this was screwed up and is causing my problem?

TypeSLO

you should definitely check that then. lol.

importdude2000

im having hte same problems
i been checking for leaks all week
cant find one yet
i need to pressureize the system


7.25lb spring>4lb
3.6lb spring>2lbs





Modified by importdude2000 at 11:33 PM 6/25/2006

ryan89crx

are you running a filter or anything over the inlet of the turbo?

if so, take it off and see what happens

4_door_teg

no filter, just a cut out strainer lol

ryan89crx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 4_door_teg &raquo;</TD></TR><TR><TD CLASS="quote">no filter, just a cut out strainer lol</TD></TR></TABLE>you have a boostleak somewhere

AbitAvenger

boost leak yo!

4_door_teg

is it possible that the weld job on the internal wastegate screwed up or something?

I can't find a leak ANYWHERE. Whats the best way to find a leak? and how big is a 3# leak gonna be?

turbinteg

if u unhook the wastegate line and u only get 6 psi it sounds like to me you have a boost leak somewhere in the ic piping or the turbo is no good but it still should make more with the wastegate source unhooked

importdude2000

im geting 6lbs now with 8.7 spring...!