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Kaefer Kaefer is offline
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Join Date: Sep 2004
Location: Central Va
Posts: 3,591
Originally Posted by Kaefer View Post
You mention wanting an adjustable WUR to adjust threshold AFRs. What do you mean by this?
Originally Posted by oilonly View Post
A thread to read on it Kaefer.

A WUR tuning mod
Good thread.

I guess 'threshold AFRs' is about adjusting at what boost level fuel enrichment starts?

If that is correct then I'm content with the stock threshold setting of my '87 WUR so I'll leave that alone for now. My understanding is adjusting threshold AFR is probably more critical with the early 930 WURs. The difference being fuel enrichment at boost onset (early WUR) vs. ~5 PSI or so (late WUR).
1987 911 turbo
In the past - '71 T, '77 S 3.6, '80 SC, '88 3.6 cab
Old 05-08-2014, 11:28 AM
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