To much boost

[Rex13]

Pm sent

Thanks

[Rex13]

Before i take the gauge back i played with the dawes/needle valves.
With the needle valve all the way in, and the dawes valve all but say 2 turns in it now runs better but could be better.
Only getting about 13psi (no limp mode)but want to try for 15psi.
Any ideas?

[Rex13]

Just wound the dawes all the way in and no difference.
Then opened the needle valve a full turn and no differance.
Its a bit slubish down low but once revs get its better but still only 13psi

[BigRAWesty]

The Di motors don't like fast spool so you have that issue..
Set up the dawes again, get it into 3rd gear about 1500rpm and floor it with the needle valve shut.
Set max boost to 15-16. That's stock..
On a factory turbo and ecu you can safely run 18psi, the ecu can supply correct air / fuel ratios for that boost..
Once higher you need to start looking at chips or remaps to correct the AFR.

Once your happy with max boost slowly wind out the needle valve untill the arm just starts to drop away from the limit screw.
This should be pretty close..

But it does sound odd and gauge related..
I'd unplug the line that feeds the gauge (both ends) and give it a good blow out incase you have a bit of crap blocking it..

[Rex13]

Cant get more than 13psl

[Rex13]

Could it be the dawes valve faulty?

[mudski]

Cant get more than 13psl

Boost leak now by the sounds of it. Is it the original intercooler?

[Rex13]

Boost leak now by the sounds of it. Is it the original intercooler?

Yes

I cant see any visable signs of it leaking

[Rex13]

If its the intercooler would that make egt go high quiker?

[mudski]

If its the intercooler would that make egt go high quiker?

Yeah more than likely. Low boost and too much fuel will make the egts be higher than normal. I'm gonna say your intercooler is leaking, thats why you can't reach boost. when your winding in the dawes to increase your boost, all its doing it pushing that extra boost out of where ever its leaking. But. Open the Dawes up and see if the spring inside hasn't bound up and the ball it seating right while your there.
Edit :
I'm a little confused now, first your boost was too high, now you cant get it high enough?