Ecodiesel: 19.46 MPG Towing 7,020 lbs.

brulaz wrote:

Now after I agree to your definition of WOT above, you're talking about "full fueling without WOT". Doesn't matter, I understand what you're saying and it does makes sense, even if the terminology can get confusing.

Maybe it came across confusing, the computer can fuel at WOT (full fuel) without the pedal being on the floorboard. So WOT fueling can occur without a physical WOT input, make more sense?

On a carbureted, or older fuel injected engine, it wasn't the case. Newer stuff, especially forced induction, can get tricky.

Clearer?



I supposed you can talk about anything you want :D, but in a diesel thread even the low rpm torque of the ecoboost is still high rpm.. that was my point.

brulaz wrote:
And a tuned gasser would get much more HP at crank but probably not as good mileage.

I've never tuned gas, but have tuned quite a few diesel trucks.

Can you not setup the "cruise" region of a gas engine to stay the same, and only alter the upper throttle/rpm band?

I know on my truck I could go put my 505hp hot tune (minimal tuning, truck has about 550 available, but it's a tow truck so I spent my time tuning the 415/850 tune I run all the time) in the ECM and not effect my mileage on a day to day basis, as I have tuned it to only make the power above about 80% throttle and 2200 rpms.

It seems with modern gas technology you could do the same, but I don't know.. Maybe it has to do with gas requires more hard parts changes for hp increase than diesel does.. to a point.