Sunday, October 17, 2010 - 09:30 pm, by: Scott Wilkes(Scottywilkes)
it will have 1, it will be squashed to buggery.
Basically its just a metal donut which will slot into a recess in the manifolds. Its worth replacing as it gets compressed so far that it wont seal 100% next time you torque the turbo up.
I replaced mine the first time i had them off with a couple from a exhaust shop, didnt bother the next 2 times though.
Tuesday, October 19, 2010 - 08:24 am, by: Jeff Bedsor(Jeff_bedsor)
Austen Menze wrote on Monday, October 18, 2010 - 09:26 pm:
Jeff, it doesn't look like you have taken much off the inside as the casting marks are still there? Did you just mainly work around the ports?
Austen - not sure what you mean, but I didn't enlarge the actual port just open up the inside. When I take then off to put the new turbo's on I might do some more.
Wednesday, October 20, 2010 - 05:35 pm, by: Scott Wilkes(Scottywilkes)
if they wernt opening they would spike to over 26psi as soon as they would start to spool up.
It would hold reasonably steady until about 5000rpm then start to creep upwards
Im having the same problem with my GT3076R now with a 38mm turbosmart wastegate, the gate is to small to control the exhaust gases and as such im getting boost creep. A 45mm tial gate will solve this problem