I'm running .3 bar spring, tial wastegate.. my gauge reads a little over .2 bar.. depending on how i punch the throttle i can notice it jump to almost .3bar for frame of a second and then stay at .2 bar.. this is consistant once i'm in full boost..

everything seems connected well together.. no strange sounds i could think off..

 

I have the .45 bar spring in my wastegate, and I wasn't running a filter on my turbo, I was running screens, not allowing the turbo to fully spool so it only made 3psi. So something could be amiss. Good luck

 

i'm using a filter. a small one but sufficient enough

 

ttt

 

where are you getting your vac/pressure source from? before or after the intercooler? the intercooler has a pressure drop. run vac line from throttle side of ic to you wg. you should see .3 bar now.l

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ffgeon &raquo;</TD></TR><TR><TD CLASS="quote">where are you getting your vac/pressure source from? before or after the intercooler? the intercooler has a pressure drop. run vac line from throttle side of ic to you wg. you should see .3 bar now.l</TD></TR></TABLE>

wastegate and boost gauge reads from the top of intake manifold.

 

that happened to me and i had a leak through one of my vacuum lines. I replaced that then no more boost leaks

 

damn.. but how can you tell? everything was installed recently and looks all together..

 

home made bike pump leak down test...
I bought some home depot hoses, a couple fittings...
I hooked it up the hoses to a bike pump and the turbo then pumped away..
found the leak by spraying a mist of soap and water and saw bubbles...
also heard a light hissing sound...

really easy to make.. only cost me 5 bucks minus the bike pump i already had hehe

edit: even if the problem isn't a leak.. it will be useful in the future to determine problems.. i was at .2 bars when my spring is rated at .45

 

cool.. thanks for the info.. going to try that out..

 

maybe turbo maifold is cracked. or turbine flange on mani isnt flat and is leaking. did you get it working?

 

the manifold is inline pro.. i hope it woudln't crack on the first days of mild boost.. i've tried the vacuum test, no hoses are leaking.. other than pressure is consistant, i can't think of nothing else..

 

tried pressure test on vaccum hoses again.. also attached another gauge to the setup.. it read 3psi.. damn..

could it be that i have 3psi spring? this is on tial 35mm wastegate, i dont have the box - but remember it said .3bar - 4.35psi spring. i don't recall them making 3psi springs for 35mm wastegate - can smaller spring be fitted into one by accident?

 

i'll put it in shorter/simpler question

can .2bar spring from Tial 46mm wastegate fit Tial 35mm wastegate?

and.. can .25bar spring from Tial 38mm or 40mm wastegate fit 35mm?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote"> i'll put it in shorter/simpler question

can .2bar spring from Tial 46mm wastegate fit Tial 35mm wastegate?

and.. can .25bar spring from Tial 38mm or 40mm wastegate fit 35mm?</TD></TR></TABLE>

anyone?

 

ttt