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Kaefer Kaefer is offline
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Join Date: Sep 2004
Location: Central Va
Posts: 3,633
Want to raise boost AFR - I have a WUR adjustment question

Hey there Pelicans,

I would like to raise my boost AFR. I've got my CCP and WCP right where I want them however the engine is running too rich in boost. Right now my AFR goes into the low 10s or sometimes even high 9s under full boost. I'd like to get the AFR into the 11s or low 12s.

I think I can raise my boost AFR by pushing the plug in on the bottom of my stock '87 WUR. Is this correct?

I've already been adjusting the CCP and WCP plugs on the top of the WUR. I've got that figured out no problem. However before I move the plug on the bottom I want to verify with the Pelican braintrust that indeed by pushing in the plug on the bottom of my WUR my in-boost AFR should start to raise.

Here is a picture of the bottom of a WUR. Mine is similar except mine does not have the hole in the middle of the brass plug. The brass plug is what I'm thinking I can push in to raise boost AFR (adjusting boost control pressure).

Thanks for any help you can provide!

'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, 07:20 AM
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