Stop the creep!

[scott_s]

Chris (TU), was very nice and explained to me how to test the can. I will do that when I am able.

[scott_s]

Quote:

Originally Posted by Marcus86GLHS "Could be a leak in the wastegate actuator diaphragm." yes. boost creep is most usually related to a weak MAP signal reaching the wastegate can, due to a leak in the line, or the can itself. run a new line to the wastegate can, make sure all connections are tight and leak-free.

The lines are newish silcone ones. The go from the wastegate to the g-valve to the TB nipple. I will check the connections.

[Aries_Turbo]

Quote:

Originally Posted by Putter Enlarging a wastegate hole bigger than necessary to mask the problem of a mis-adjusted wastegate actuator is both more work than necessary, and not fixing the root cause.

But sometimes the said hole just cant flow enough... so you port it.

I had this problem on the k car when I first fired it up.... crept like crazy with the arm totally open. I ported the hole and the creeping stopped. no other changes.

Brian

[Putter]

I know you can overwhelm them, but from what he said, I don't think he was to that point yet.

I've ported turbo wastegates before...a twin turbo rx7 comes to mind...

[Aries_Turbo]

gotcha. i dunno... it sounds like "hole too small" creep to me... that or the diaphram is torn or leaking a little. he could unhook the wastagate totally and open the arm the whole way with a spring and drive around... if the boost rises to cutout, he has creep. this is what my issue was. i wouldnt get boost till 3rd and 4th but it would crank the whole way up to 18psi lol.

Brian

[scott_s]

One of my lines to the g-valve was a little loose. I tightened it up. Testing so far still show creep. I my set boost in all gears and then some

[als]

do you have the restickter in the vac line / don,t you just change the hole size ? like 30 up till 50 on the hole size.ALS