How to improve economy
Posted: Sun Dec 16, 2012 9:00 amHi guys! I'm making a line of engines designed to be economical (Like fuel-economy wise). What are the ways to improve economy?
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How to improve economy
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Posted: Sun Dec 16, 2012 9:00 amRe: How to improve economy
Posted: Sun Dec 16, 2012 9:20 amcam profile under 35 i believe, more compression and more ignition timing, valve system with least friction and low friction pistons.
Re: How to improve economy
Posted: Sun Dec 16, 2012 10:03 amAlright thanks!
Re: How to improve economy
Posted: Sun Dec 16, 2012 2:22 pmAll those things, plus keep leaning it out (at a certain point the loss of power will make economy worse, but you've gotta find that point)
Smaller capacity won't help much for effeciency at full throttle, but once you put it in a car, the ideal is a small engine that will be run on high throttle settings, as engines are most effecient at converting fuel into power at near full throttle (as they don't have to suck against a closed throttle)
Running higher octane fuel will let you run more compression, and compression basically gives you economy for free.
Run the best fuel system you can, the newer fuel systems make a big difference.
Smaller capacity won't help much for effeciency at full throttle, but once you put it in a car, the ideal is a small engine that will be run on high throttle settings, as engines are most effecient at converting fuel into power at near full throttle (as they don't have to suck against a closed throttle)
Running higher octane fuel will let you run more compression, and compression basically gives you economy for free.
Run the best fuel system you can, the newer fuel systems make a big difference.
Re: How to improve economy
Posted: Wed Dec 19, 2012 1:58 amAlso I think if money is no object, making the fuel system of the highest quality makes it more economical, and gives a lower octane requirement allowing you to run more compression and timing.
Re: How to improve economy
Posted: Wed Dec 19, 2012 2:32 am^That too
Re: How to improve economy
Posted: Thu Dec 20, 2012 3:03 pmDaffyflyer wrote:Running higher octane fuel will let you run more compression, and compression basically gives you economy for free.
Run the best fuel system you can, the newer fuel systems make a big difference.
Technically speaking, shouldn't running higher octane fuel hurt economy? Maybe not the actual economy figure, but something to compensate for the cost difference. At least here in the US, the higher grades are typically 10-15 cents more per gallon than basic 87.
Re: How to improve economy
Posted: Thu Dec 20, 2012 4:33 pmTyler wrote:Daffyflyer wrote:Running higher octane fuel will let you run more compression, and compression basically gives you economy for free.
Run the best fuel system you can, the newer fuel systems make a big difference.
Technically speaking, shouldn't running higher octane fuel hurt economy? Maybe not the actual economy figure, but something to compensate for the cost difference. At least here in the US, the higher grades are typically 10-15 cents more per gallon than basic 87.
Economy in terms of cost maybe, but in terms of straight fuel consumption no, also its increasingly common to see very economical cars that require premium fuel, but use enough less of it that its a net gain cost wise