Why would STS base kit be making 10psi+ ????
Feb 22, 2005 | 06:12 AM
#32
Posted some wastegate pics for everyone to check out. See anything weird in these? I circled a irregularity in the diaphramg so it would not be missed. I don't think the ripple is a problem but who knows at this point. I sent allot more pictures to Allen at Nelson and Dave at STS. They are scratching their heads too. 
Feb 22, 2005 | 09:38 AM
#33
Some times the diaphragm gets pinched on assembly (some times they even come pinched from Tial). That could definitely be your problem.
The first pic is the valve seat.
Also, its hard to tell in a picture, but that spring looks kinda big. For reference, the .8 bar spring I have now is also red
If that spring looks like the max diameter that would fit in the wastegate, it may be the .8 bar.
I think I still have a .4 bar and a .5 bar to show the diameter difference. I'll hunt around tonight and see if I can post up a pic.
The first pic is the valve seat.
Also, its hard to tell in a picture, but that spring looks kinda big. For reference, the .8 bar spring I have now is also red
If that spring looks like the max diameter that would fit in the wastegate, it may be the .8 bar.I think I still have a .4 bar and a .5 bar to show the diameter difference. I'll hunt around tonight and see if I can post up a pic.
Feb 22, 2005 | 10:19 AM
#34
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Tim, on the last pic of the top of the wastegate you see two levels or places in the wastegate the spring could sit. If you sit your spring down in the wastegate, it should sit on the smaller lip on the inside just around the base of the cone. If its on the outside, it may be that the spring is too big. There are large and small springs for these wastegates.
Feb 22, 2005 | 11:02 AM
#35
I am clueless when it comes to FI so
this may be crazy
but could it be running so rich
that its wetting the cats
and causing a cooling effect in the exhaust
making boost increase?
this may be crazy
but could it be running so rich
that its wetting the cats
and causing a cooling effect in the exhaust
making boost increase?
Feb 22, 2005 | 11:43 AM
#36
Originally Posted by gamedawgx53
I am clueless when it comes to FI so
this may be crazy
but could it be running so rich
that its wetting the cats
and causing a cooling effect in the exhaust
making boost increase?
this may be crazy
but could it be running so rich
that its wetting the cats
and causing a cooling effect in the exhaust
making boost increase?
Running lean as hell.
TOO MUCH BOOST I THINK.
Feb 22, 2005 | 11:47 AM
#37
Originally Posted by trtturbo
Tim, on the last pic of the top of the wastegate you see two levels or places in the wastegate the spring could sit. If you sit your spring down in the wastegate, it should sit on the smaller lip on the inside just around the base of the cone. If its on the outside, it may be that the spring is too big. There are large and small springs for these wastegates.
