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I was messing with the aero and rolling resistance calculator on here and came up with needing about 35hp to propell the suburban down the road at 65mph.
Which seems correct to me.
It consumes almost 40hp/hr worth of fuel on average, the difference is from maintaining or trying to maintain speed on hills and a few stop and goes that come with highway trips.
2 to 2.5 horsepower isn't much only about 6%, but even on my suburban playing with the aero and hp numbers if I reduce a little under 2hp worth of engine load it should be good for almost 1mpg.
So it looks like I have some numbers to back up the reasoning to do the mod.
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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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