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patkeefe patkeefe is offline
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Join Date: Apr 2004
Location: Ringwood, NJ
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boost check

Quote:
Originally Posted by jcc911 View Post
No, How I check on boost timing?
Thanks
Jeremy:
I am assuming you are speaking of boost enrichment onset. If you have an SC ignition distributor, you can't change anything other than static timing. You need to get a pressurization device, like a mighty-vac. I have a mighty vac with a vacuum and pressure gauge setup. you pump some positive pressure into your wur, and watch to see what the control pressure does. Of course, you need to have a CIS pressure tester on the system concurrently. At least that's how I check mine. So, whatever WUR you have, there will be a spec for when it starts boost enrichment at what pressure. I start enrichment at 4 PSI, I believe.

Maybe one of the 930 guys will chime in here. I have a Leask WUR, and it has adjustability the stock ones don't have.
Pat
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Patrick E. Keefe
78 SC
01 Boxster
Old 09-06-2011, 04:20 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #40 (permalink)