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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
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Originally Posted by Speedy Squirrel View Post
Can someone measure the valve stem diameter for the wastegate valve? The reason I ask is that the guide looks just like a 911 exhaust valve guide on the cross section drawing that I have. If that is the case, it would be quite inexpensive to replace. It would also provide some wear limit info.
Hi Speedy,
Can you provide the dimension and tolerance on the diameter of the bore in the valve guide drawing you have?

This would be useful info for a machinist to make new guides.

1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"
Old 12-02-2013, 09:42 AM
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