Running rich
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Joined: Feb 2018
Posts: 77
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From: Raleigh North Carolina
Running rich
Hi, Gents last week I had a BTR blower cam and Kooks long tube headers added on to my A&A blower. Had the tune done by the installers Now I noticed the car's tailpipe has black soot a good amount, It's running really rich and the gas mileage has dropped considerably. Somewhat in the neighboorhood of 8 to 9 miles a gallon just on the freeway, avg speed around 65 M.P.H..please enlighten me on the subject and course of action. Power went from 554H.P and 511 Trq to 645 HP and 572...Thanks
Le Mans Master
Joined: Jul 2010
Posts: 6,004
Likes: 723
Hi, Gents last week I had a BTR blower cam and Kooks long tube headers added on to my A&A blower. Had the tune done by the installers Now I noticed the car's tailpipe has black soot a good amount, It's running really rich and the gas mileage has dropped considerably. Somewhat in the neighboorhood of 8 to 9 miles a gallon just on the freeway, avg speed around 65 M.P.H..please enlighten me on the subject and course of action. Power went from 554H.P and 511 Trq to 645 HP and 572...Thanks
Race Director
Joined: May 2004
Posts: 16,667
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From: Raleigh, NC
St. Jude Donor '15
In closed loop just going down the interstate the ecm should be using the o2 sensors to correct fueling back to stoich so something is going on if it’s far enough off to not be able to do that
