getting + miles a gallon by changing gears in car?

Dedicated to discussion of the synchromesh, variable pitch dynaflow, and flight pitch dynaflow transmissions.

getting + miles a gallon by changing gears in car?

Postby HotRod58er » Tue Jun 17, 2008 9:25 pm

i read a story about a guy way back who modifiend his Chevy Nova and put very tall gears in the transmission and very small gears in the rear end and went from Miami to Los Angeles at 80 miles a gallon! Now About our Buicks. Since I have the sycromesh shift trans and economy rear end gears, I thought I would ask. What is the tallest gears you can stick in the transmission and the smallest rear end gear you can stick in the rear end of a 58-59 Buick?

Reverance for the past-ensures the future

1997 Buick Riviera (yes its supercharged)
1959 Buick LeSabre 4 door sedan (45,000 original miles)
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Re: getting + miles a gallon by changing gears in car?

Postby Resurrector » Fri Jul 20, 2012 12:14 am

Wow, I don't know if you could improve on what you have for gears already...I get what you are saying, interesting thought but as far as that story, it's a load of crap, keep in mind that- for example- a subcompact Geo Metro, with a fuel injected 3 cylinder and a 5 speed, driven with an egg under the gas pedal, can barely squeeze out 50 mpg in the real world, and it's much lighter and FAR more aerodynamic than a Nova!!

I used to get caught up in trying to improve mileage of a 2 + ton American classic, but ultimately realized that unless you are using the car every day, the difference between 17 and 24 mpg will not put you into the poorhouse :)
Once I put a Buick 3.8 V6 into my D100 pickup, in the hopes of improving mileage, only to find out it gets no better economy than a V8, just has to work harder and has less power!
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