Quote:
Originally Posted by Big Dave
Coupla things:
Somewhere in the archives of The Diesel Page - for the 6.2L, 6.5L, and Duramax 6600 (6.6L) GM Chevrolet and GMC diesel engines. there is a story out of GM about a 6.2 normally aspirated diesel with a 700R4 and 2.73 gears that got 30 MPG without hypermiling. IMO this thing would be so slow any driving it would be virtual hypermiling. Look for the story.
Back in the 80s and 90s I had a 6.2 diesel with a 700R4 in a K2500 pickup. Not much heavy work unless you count hauling my fat butt around. Good truck - got about 23 MPG but went through transmissions like a teenager goes through potato chips. By time I got rid of it at 305,000 miles it had trashed its seventh transmission. spectacular failures with parts and tranny fluid scattered down the road.
My advice to a good mechanic: Transplant in a manual. NV4500s fit well. T5s are too light.
Also a manualwould enhance MPG. |
Oh these are well known to a lot of people in the 6.2L/6.5t world.
Its usually a C5 blazer, with a 6.2L, an after market gale banks turbo, 5-speed with 3.08 rear gears.
I could see a N/A 6.2L doing it with 2.73 gears as long as you didn't have any where you needed to be in a hurry.
I would like to do a manual swap some day I just cant do it now.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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