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daniel · Joined: 18 Jun 2009 Posts: 686 Location: Sydney, Australia

Hi All
If I add or remove washers under the system pressure regulator will this adjust the overall mixture or should I look for another method?

Cheers
Daniel
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet

Smoothie · Posted: Tue Mar 23, 2010 4:53 am Post subject:

No, that'll only increase/decrease system pressure. A:F adjustment is shown near the lower-left here -

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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

Joes924Racer · Posted: Wed Mar 31, 2010 4:44 pm Post subject:

You can raise pressure by changing the shim that goes along with
the spring, kind da fuzzy there but thats it.

You adjust the afr by turning the adjuster located on the top of the aluminum cover that the fuel dizzy is mounted on.

Theres a rubber plug in therepull it and use a long torx bit
still fuzzy here though I think counter clock-wise will richen and clock-wise will lean it out. Make adjustments with the car running, turn the
adjster in in small increments then waite to see the effects.

Some say to turn it one way till the motor falls off idle then the other way till the motor falls off idle again then go to the middle and richen it up a little from there. The best way is to go find someplace with a afr tester.

Again more fuzz though I believe the over all mix is set 14.3.

The afr tester is a taill pipe tester that reads the mix. If you do it on your own, running lean will destroy the motor,

richen it up from the middle a bit & if you get black sooty stuff coming out the exhaust lean it out a bit. Again the best bet is a afr tester.

You could be all the wiser and get a afr guage and install it in the exhaust.

afr= air fuel ratio.

Did I do good Smoothie.

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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Arvidw · Posted: Wed Mar 31, 2010 6:17 pm Post subject:

Fifty50Plus · Posted: Wed Mar 31, 2010 11:54 pm Post subject:

My Benz has K-Jet and we adjust for 12.8 reading with a wideband sensor for max power at wide open throttle under load.
Chuck
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1979 924 NA race car H-Prod SCCA
1982 924 NA race car - Sold
1981 924 Turbo sold
1982 924 Turbo sold
1972 911 E race car - traded for Cayenne Diesel
1975 914 1.8 Building for H-Prod SCCA