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Registered User
Join Date: Apr 2015
Posts: 4
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need help with 3.0 sc motor with weber carbs
Hi, can anyone tell me what the HC & CO on this motor with this set up?
My set up 34mm main venturis 145 main jets F3 emulsion tubes 180 main air correction jets 60 idle jets Carbs were done by Paul (Performance Oriented) Thank You in Advance Can you please email me victor@morgadosinc.com |
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05-13-2020, 07:02 AM
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Under the radar
Join Date: May 2007
Location: Fortuna, CA. On the Lost Coast near the Emerald Triangle
Posts: 7,129
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Really good question. Why do you ask?
You may want to install an AFR meter. 
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Gordon ___________________________________ '71 911 Coupe 3,0L outlawed #56 PCA Redwood Region, GGR, NASA, Speed SF Trackrash's Garage :: My Garage |
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05-13-2020, 01:17 PM
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Registered User
Join Date: Apr 2015
Posts: 4
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Gordon, Thank You. That is the best way to go. Didn't think of it. I have a lot of time and money in my car and need to know where its running
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05-14-2020, 02:58 AM
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Registered
Join Date: Jun 2009
Posts: 1,244
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What size carbs?
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05-14-2020, 05:27 AM
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Registered
Join Date: Feb 2008
Posts: 1,438
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An AFR gauge is good for monitoring mixtures assuming idle adjustments (Lean Best mixture and air flow balancing) and on-throttle balancing of air flows have been adjusted. If air flows are not balanced then AFR readings will be an average of both carbs. This does assume one AFR gauge is used in one of the exhaust collectors. Also, float levels in all four float bowls must be checked for correct setting since fuel levels in float bowls determining when fuel begins flowing in the main circuit and will affect mixture readings.
In conclusion: AFR gauges are very useful in checking your jetting for new carb setups but basic tuning must be performed correctly to baseline the readings.
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Paul Abbott Weber service specialist www.PerformanceOriented.com |
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05-14-2020, 09:09 AM
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My Garage
1971 Porsche 911
Baja Bug
