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Old 01-14-2008, 03:01 AM
Dessertrunner's Avatar
Dessertrunner Dessertrunner is offline
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Join Date: Jul 2005
Location: Griffith NSW
Posts: 2,156
Gear Ratio & fuel consumption

Can some one help me understand how rev's effect fuel consumption. It was suggested that my higher gear 5 speed box would give better fuel cunsumption then the 6 speed which has lower gearing for rally. I understand that the 6 speed will mean the engine revs higher for the same speed but how does that work against fuel consumption?
Tony
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1995 - SVX 700,000 K Mine, DMS Struts to lift car 2in. Tyres Wrangler Silent Armor 235/70R16, PBR Radiator. 6 speed with DCCD and R180 rer diff, Heavy duty top strut mounts front and rear. Speedo correction box fitted. New stero (gave up on the old one). Back seat removed and 2 spare tyres fitted for desert driving. ECUTune SC sitting in the box for the next SVX.
1992 - SVX 255 K Wife (Want to stay Married so not allowed to fit SC)
1992 - SVX Pearl with black roof race car roll cauge etc ready to race. Ex Tasman Targa car.
1995 - SVX Green low k mint condiation.
1995 - SVX Rally car, ex Matts car. Now to be used on track.
1992 - SVX red & Black being converted to Mid Engine.
1995 - SVX Red 143,000 bit rough.
Owned 5 others Subaru back to a 1974 1400 GSR.
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Old 01-14-2008, 06:29 AM
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TomsSVX TomsSVX is offline
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Location: Branchburg, New Jersey
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well under light load, the engine is going to base fuel consumption off of the rpms. But for the most part this is minimal. I mean, I still get over 20mpg in my silver with the stage 3 and the 6mt(JDM with close ratio gear set) Really depends on how you drive it. If you smash on it, its gonna burn more gas.

Tom
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