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Kaefer Kaefer is offline
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Join Date: Sep 2004
Location: Central Va
Posts: 3,631
Originally Posted by fredmeister View Post
Tapping in the top plug for warm control must be a *****. Mine is tight.

Definitely the way to go is turn the allen screw thru the hole in the brass plug. You have much finer control over warm and boost pressure this way.
After getting the hang of adjusting the small top plug for cold pressure adjusting the big plug isn't too bad.

One more question - if I drill a hole in the bottom plug (boost enrichment) to be able to adjust the warm pressure via allen screw --- do I need to then plug the hole I just created or just leave it open? My guess is I can leave it open.

Also to summarize - I can adjust boost enrichment by tapping in the lower plug (raising boost pressure/AFR) and this adjustment does not affect warm control pressure/AFR. However adjusting warm control pressure affects both warm AFRs AND boost enrichment pressure/AFR.

This is good info. Thanks.
'87 911 turbo, '10 Cayman S
In the past - '71 T, '77 S 3.6, '80 SC, '88 3.6 cab
Old 12-16-2013, 01:16 PM
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