the idea with a turbo for increasing mileage is to not use the boost, as mentioned earlier in this thread. The guy noted better cruising mileage with the turbo than without. At first seemed counter- intuitive as more pressure will result in more fuel = less mileage. If the turbo does nothing but ease the engine breathing by countering the pressure lost through ducting, filter, etc (which by iteslf should give a small effieincy increase as the engine does not have to use energy to pull the air, but instead recovers some power from the exhaust to do this) and providing an increase in air temp to aid vaporization. The turbo could do both, I just don't like the complexity of another wiget spinning at 100k rpm that will eventually have to be repaired.

 

wow i get about 24-26 city. the most i ever had was 35 when i did alot of highway driving. did u do any work on the engine b4 u installed the supercharger?

 

I was not asking for a lesson in supercharging theory. If you think by simply increasing intake temperature, you will atomize gasoline efficiently enough to make a noticeable gain in mileage, i advise you to move to a city bordering the equator to test your hypothesis. Even at neutral vacuum values, a turbocharger will aid in drawing air into the combustion chambers.

 

arust45,

I will test my theory as I see fit, and do not need to move anywhere in order to do it. If that is how youwould test this idea out by all means pack up and go.I was unclear as to your comments regarding why a turbo gives a boost in mileage. You were not being lectured to. Keep your rude remarks to yourself! I am finished with this thread!

 

As Bill O'reilly says, "i'll give you the last word." Even though he's an a'hole and never does . Even I have my moments.

 

all of this seems kind of ridiculess when you consider the fact that you would have to pay more for a higher octane of fuel when you add boost. unless you could find the happy median between a low enough level of boost to gain better fuel atomization without causing predetonation... wow didnt realize i just revived a nearly 3 year old post but it is interesting.

 

This thread is 6 years old...