who did it and how..i remember seeing where someone won a fuel economy test with a modded supra.. what a/f r?
anyone have a link?
did a search and got nothing
anyone have a link?
did a search and got nothing
29mpg turbo mkIII
- Thread starter dav_dman
- Start date
Not sure what you're talking about with the fuel economy test...
but when I first picked up my Supra down in Southern Indiana...driving back home, I got 26.8mpg (Yes, exactly 26.8
) Thank you, Super Monitor.
Jeff
but when I first picked up my Supra down in Southern Indiana...driving back home, I got 26.8mpg (Yes, exactly 26.8
) Thank you, Super Monitor. Jeff
29 in the city or highway?
friend dallas near me gets pretty good gas milage he gets in the mid 20's in the city
friend dallas near me gets pretty good gas milage he gets in the mid 20's in the city
Is it because when on decel most of the fuel in the engine is cut? And idling it puts out a certain amount to keep the engine going?
Not hard on a thoughtfully modded turbo car -- especially if you have a standalone. You can run way leaner than stock under just about every condition (highway cruising included). The reason Toyota couldn't run that lean from the factory is because leaner mixtures makes a hotter combustion chamber. A hotter combustion chamber means more NOx emissions... Keep in mind that huge wheels/tires will bring down the mpg.
Back in the early 80s when NOx wasn't as regulated, Honda made the CVCC Civic. It basically had a pre-combustion chamber that would ignite a small amount of a normal air/fuel ratio -- then the flame would spread and ignite a much leaner mixture in the main combustion chamber (the mixture in the main combustion chamber was so lean, it could not be reliably ignited by spark plugs).
PS, the article you're looking for is the SCC ultimate car challenge from 2 or 3 years ago...
Back in the early 80s when NOx wasn't as regulated, Honda made the CVCC Civic. It basically had a pre-combustion chamber that would ignite a small amount of a normal air/fuel ratio -- then the flame would spread and ignite a much leaner mixture in the main combustion chamber (the mixture in the main combustion chamber was so lean, it could not be reliably ignited by spark plugs).
PS, the article you're looking for is the SCC ultimate car challenge from 2 or 3 years ago...
starscream5000 said:
When you're over ~1600rpm (If I recall correctly -- its in that ballpark) and the throttle is completely closed, you are not injecting any fuel into the engine. That is one of the beauties of fuel injection. However, engine braking slows your car down, so unless you're coming to a stop anyway, it isn't best for gas mileage because you'll just have to accelerate again
starscream5000 said:
What ma71supraturbo said. If you are over fuel cut RPM and have no throttle applied, zero fuel is being injected into the engine. Going down a hill in gear uses no gas, if you are in neutral, you are using gas to keep the engine idling.
gixxer750 said:
Ever watch a truck driver get pissed when a big hill is coming up and people jump in front of them and slow down.
then people wonder why traffic is slow as hell.:biglaugh:
^Ever notice how fast they slow down if your stuck behind a big rig with no one in front of him and he's getting ready to head up hill? Sucks, bigger turbo and more boost FTW .
.
starscream5000 said:^Ever notice how fast they slow down if your stuck behind a big rig with no one in front of him and he's getting ready to head up hill? Sucks, bigger turbo and more boost FTW
LOL
left lane FTW. hehehhe
They aren't allowed in the far left lane during rush hour here in TN.
werewolves182 said:
Level out the HP/Tq/Speed/Weight and you can do that. Highway I always try and keep it to where I barely have to give any gas, this is like 80 for my NA. does wonders for gas mileage.
