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Old 11-13-2012, 12:25 PM   #19 (permalink)
EcoModding Apprentice
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Join Date: Sep 2009
Location: Northeast
Posts: 147

Silver Bullet - '86 Chevy Camaro Z28
90 day: 19.74 mpg (US)

New Blue - '96 Chevrolet Camaro Z28
90 day: 20.46 mpg (US)

Diesel - '96 Chevrolet Tahoe LS
Last 3: 13.56 mpg (US)

Tahoe #2 - '95 Chevrolet Tahoe LS
90 day: 13.05 mpg (US)

SuperDuty - '08 Ford F-350 dually Lariat
90 day: 9.34 mpg (US)

Fundai - '09 Hyundai Elantra
90 day: 26.45 mpg (US)

HRV - '17 Honda HRV LX
90 day: 31.39 mpg (US)
Thanks: 7
Thanked 18 Times in 12 Posts
I've heard raising compression helps efficiency as well. On the '93 DX/VX I had the head on my d15z1 shaved and got a 3-angle valve job at the same time (had the car apart anyways).

Unfortunately I did a lot of other upgrades at the same time so no before/after mpg results, but the seat-of-the-pants felt nice after - was very happy with its ability to stay in lean-burn on small hills and headwinds (didn't have to step on it). Passing power was decent for such a small engine - the d16z6 car I now have doesn't seem much better FWIW.

Last edited by tim3058; 11-13-2012 at 12:32 PM..
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