Blow through 5.3 MPG
08-29-2015, 03:44 PM
#1
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Join Date: Aug 2010
Location: Durham, NC
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Blow through 5.3 MPG Just curious what you guys are getting highway mpg. A friend of mine with a turbo 6.0 RC/SB Silverado only gets 12, although his tune isn't spit on. Right now my Chevelle with a big block and a 4l80e weighs 3950 with me in it. Are high teens possible?
08-30-2015, 09:02 AM
#2
When I had my 69 chevelle with a 6.0, blowthru carb, D1SC Procharger, 4L80E trans I got right around 20 MPG on the highway-I could have prob leaned it out a little more, but left it around 14 AFR
With the converter locked, I would roll around 2000 RPMs @ 60 MPG
With the converter locked, I would roll around 2000 RPMs @ 60 MPG
