Forum Discussion
dodge_guy
Aug 13, 2018Explorer II
wilber1 wrote:dodge guy wrote:Lynnmor wrote:dodge guy wrote:
You wouldn’t think so, but looking at my throttle position parameters on the tablet throttle opening and engine load are approx. 12% less at 75 as opposed to 65!
So you go faster with less throttle? How do you slow down?
Just trying to be funny, but your math doesn't take into consideration that the engine is taking 16% more gulps per minute. It also doesn't take into consideration that the fuel air ratio might be different to provide the needed horsepower to maintain the higher speed.
All I am trying to say is that it takes more power to push thru the air as speed increases. It takes fuel to make that horsepower and higher torque (which is just higher cylinder pressure from an increase of air and fuel).
That all makes sense, but the fact is when the engine is running at its peak torque that’s where it’s most efficient. When going slower the engine is lugging which means more throttle opening and more fuel being dumped in to try and maintain that momentum.
What matters most is that at 65-67 or so I get less mileage than at 75!
Then you would be better off using a lower gear and going slower. You would get the higher RPM you want without having to overcome the extra drag. Overcoming drag requires HP and HP costs fuel.
Not now. I would have to run slower in 3rd which I`m not going to do. My setup is very capable and very stable the way it is. not going to change a thing I`m happy with it the way it is!
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