Thread: Msd 6al 6462
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mark houghton mark houghton is offline
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Originally Posted by NathanUK View Post
AFAIK the 930 does not have any mechanical boost retard. It only has vacuum advance.
So, when on boost there will be no vacuum so the ignition is retarded. This is why the 930 is very docile while waiting for boost to build.
Try putting pressure on your capsules/pods while you have a timing light rigged up and let us know if you do get any retard Doug.
Nathan, I seem to remember there being two "air" lines going to my '87 dizzy. One for vacuum, one for boost pressure....or so I assumed until now. I thought the one was to retard timing under boost and the other to advance in non-boost. to elaborate?
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 02-25-2009, 01:47 PM
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