I have a bit of a problem.
My Aussie split last weekend, and after a bit of searching MAT_H from the OC had a xspower DP that i could use until i got a replacement.
The fit of the pipe pulled the flexi over to cause the exhaust to rub on the propshaft, which in itself isnt too much of a problem, but i have another problem in that i can only get 0.65 bar max. I have tried different settings on the boost controller but this makes no difference.

Im a bit stumped, could the wastegate fouling issues i have read about cause this? Or could it be something else connected with the DP fitting?

Im lost...

any help will be great!
Cheers
Rob

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."

possibly, i suppose the wastgate could be getting stuck open but then surely you wouldnt get much pressure at all.

I think the wastegate fouling issues normally cause overboost not under boost that you are experiencing if there is such a thing.

Im not sure tho, i'm sure some1 techy will be along in a moment!

_________________
Chris
ST205 with a little help from a ST215...

This is what i thought - i cant see anything that might cause a leak or similar?

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."

Robbie - is it coming on boost real late in teh rpm range and slowly building to a max of 0.65 bar? if so then it is probably the wastegate stuck open. It is about the only thingh that can cause it unless teh turbo has lost its turbine wheel blades !

_________________
JP
GT4DC Treasurer

Grey St185 RC
Silver BMW E46 M3
Multicolour yawn Honda VFR400
Silver Honda Civic Type-R

Is it an aggressive 0.65 bar (lol) at sub 3000rpm or a really laggy 4k+rpm 0.65
What is your actuator rated at

If the actuator is stock then I would hazzard a guess that the boost controller if knackered or disconnected

What you should be able to do:-
Locate the pressure sensor for the EBC.
Connect the trusty air pump you have left over from yourr first round of knackered actuator diagnosis
Connect this to the EBC pressure sensor. Check that the EBC is able to see pressure. when you pump it up to say 1 bar you ought to hear the solenoid clacking away trying to control boost. If you can't then there's something amiss in the electronics somewhere.
I can guarantee that you would not be the first to leave the solenoid disconnected

I'd have to say that if you disconnect nothing other than the down pipe in the install that it sounds a bit like a blocked exhaust or a restriction.

I'd be disconnecting the flexi from the DP and running it down the road quickly to see if boost come back.

unless you can read boost stationary with this set up in which case split the pipe and give her some throttle check boost on ya gauge.

if the flexi is pulled across enough then it could be restricting flow, causing back pressure which the waste gate will dump.

MAYBE

_________________
1990 JDM ST185 Grey.
ST205 head gasket.
ARP head bolts.
ST205 Koyo Rad. (almost)
Front mount intercooler.
Colder plugs.
3" decat pipe.
4 Branch manifold.
Nitrous Oxide Steroids for Cars!

I'll go and check the suggestions.. the exhaust was pulled over by about 15mm, hence the rubbing on the prop. I didnt check when boost was coming in - i'll let you know when i take it out in a bit..

cheers everyone!

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."

i found the problem - i feel a bit stupid the EBC was disconnected .. doh!

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."

LOL - atleast it was cheap m8

_________________
JP
GT4DC Treasurer

Grey St185 RC
Silver BMW E46 M3
Multicolour yawn Honda VFR400
Silver Honda Civic Type-R

So you had to disconnect the EBC when you replaced the DP?.....or were the two entirely unrelated.......was your EBC ever connected...

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

\o/ Me for teh win lol

Sorry Steve, I claim the prize....once got my Four back from service with the EBC connected up the wrong way round , took me a while to suss out why I was only getting actuator boost!

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp

the ebc is on a bit of a dodgy connection, it looks like there is no hold on pin musta just slipped out . Now i'm back to 1 bar and loving it.. for a while anyway till something else snaps.. god im making myself so popular with the misses

well lesson number 37 learnt.. as you say at least its cheap!
cheers people!

_________________
ST205




"And God said, Let the earth bring forth grass, and the earth brought forth grass and the Rastafarians smoked it."