hydro

Your EB also makes more torque and tows better. Seems like a good trade to get the same mileage and make more power.

Mike Up

hence back to other threads where I have said the 13 doesn't seem near as powerful as other EB (prior years I have driven). a lot of people on these threads say that there truck never downshifts even very little while towing. mine does empty going up a small hill. I think Ford has obviously done something with the 13's. my truck more than most with 3.73's should not downshift going up a less than 1% grade at 70mph. I have only towed my boat with my EB once last fall. in all honestly I really didn't feel like it towed much better than my 5.0 did. esp towing up hills. the 5.0 was quicker to regain the 2-3 mph that I lost on the incline.


if they did in fact do something like de tune the engines that will help explain some of the drop in mileage that I and others are experiencing. Problem as a consumer is how to find this out- without having to spend a lot of time and money on dyno's etc?[/QUOTE]

I don't know who you quoted but that comparison is apples to oranges. That 2011 Ecoboost Screw was a FX2, 2WD that has a lot less weight and less driveline loss, so it should be faster.

That 2013 Ecoboost Screw is an XLT 4WD that's heavier with more driveline loss. In fact it's only .1 seconds faster than the same truck with a 5.0L from 0 - 60 seconds, from 2011.

Adobe2X

Originally Posted by EODK9Trainer
The issue I have, and I really do like my truck, is that my 6-cyl F 150 gets almost the mileage as my recent 07 Tundra with the V8 and 5.7. Although I did not do a lot of research, if any really, on mileage, I did expect better from a V 6 with something Ford puts on there called Ecoboost. I believe the average person would expect better.

Trainer.........when your little 3.5 liter V6 has both turbos pumping at 14.7 psi --- your "little" V6 just became the equivalent of a 7 liter engine....so if your EB gets the same as your previous little 5.7 liter V8, then it really is doing so economically...........

Hemirunner

Please stop with the common sense and rational thought pattern. It's not as much fun as whining about mileage

mikeyfitz

Oh and I have a 13 EB and my truck has yet to get out of 6th when cruising and there is an incline.

Pool Runner

I don't know who you quoted but that comparison is apples to oranges. That 2011 Ecoboost Screw was a FX2, 2WD that has a lot less weight and less driveline loss, so it should be faster.

That 2013 Ecoboost Screw is an XLT 4WD that's heavier with more driveline loss. In fact it's only .1 seconds faster than the same truck with a 5.0L from 0 - 60 seconds, from 2011.[/QUOTE]


So glad I'm not the only one who notices this with their '13. Grant-it, my comparison is not an apples to apples comparison, as my previous truck to my 157", Max Tow, EcoBoost was a 5.0, 145", Scab, 2wd and it was very quick for what it was.


I have no doubt my '13 EcoBoost, 3.73 would spank it after about 30-40 mph, but my 5.0 just felt snappier off the line, and in those moments where a car in front of you slows your momentum and you need to punch it and go around.


I also read on here and other F-150 related threads/ forums and guys are constantly bragging that their EcoBoost holds 6th gear pulling a 3-5% grade WITH A TRAILER behind it?? My '13 EcoBoost 3.73, will down shift from 6th to 5th at 70 mph on a 2-3% grade EMPTY.


It doesn't bother me, as my 5.0 would drop all the way down to 4th on the same grade, but it wasn't struggling, just annoying if that makes sense? It's just baffling to hear people say their EcoBoost, some even 3.31 & 3.55 gears, never come out of 6th to pull a grade, yet mine does. I specifically wanted the 3.73 gearing because of this, but I'm kind of wishing I would have got a 3.55 or 3.31 truck instead, as I am taking a huge fuel penalty for having 3.73's.


Also, I notice the EcoBoost is tremendously amazing off the line, and in mid torque situations. But it's not as aggressive feeling as my 5.0L truck was at say a 68-80 mph pass on the highway.

Pool Runner

What year and what gears?

Al Kohalic

I am the one who quoted it. I just thought it was funny that the FX2 3.55 that was loaded with 500lbs more weight was faster than the XLT 4wd 3.73(which would be more than enough to cover the extra 350lbs of the 4wd and very-little-to-the-point-it is-dismal drive-line loss). This is mainly due to the fact that turbo engines do better with taller gears to a point. It is the opposite of N/A engines that peaks for a brief moment at high engine speeds so you would want taller gears to keep you at that spot in the higher rpms. Turbo engines like the Ecoboost are different due to their power curve being flat (not peaky) and they get most of their torque in the lower rpms while starting to fade in the higher rpms. You would want to take full advantage of the broad torque curve that is greater at lower rpms so taller gears(to a point) are better and have the opposite effect to a turbo engines as they would an N/A.

I happen to think that a 3.73 is too short of a rear axle gear for the Ecoboost combined with the 6R80 6-speed, but that is just me. I also wish Ford would have made a Max Tow packaged with a 3.55 gear that got all of the stuff that a Max Tow does, but only is rated for say 10,300lbs with the 3.55 instead of the 11,300lbs with the 3.73s. I would bet a lot more max tow 3.55s would be sold versus the 3.73s once people found out what I stated above. Again, that is just me which is partly because I believe a half ton should not be rated for much more than 10,000lbs. Anything thing after that in a half ton is just a pissing contest between brand marketing because anyone who would be towing that much on a regular basis would probably get a 3/4 ton.

Mike Up

The 2011 FX2 was only 5500 lbs shown by the link to that 2011 I posted. It's on the picture of the truck describing the actual gvw of the truck/trailer combination, AS TESTED.

The 2013 XLT was a much heavier 5820 lbs shown on the link I provided, then selecting the payload . 1630 lbs payload left after a 200 lbs driver. 1630 lbs + 200 lbs driver, subtracted from 7650 lbs GVWR.

Actually the FX2 was lighter by 320 lbs, not the opposite.

Al Kohalic

Isn't that what I said????

The trailer that the FX2 was towing was 9,000lbs and the trailer in the 2013 Light-duty Challenge was 8,500lbs which comes out to 500lbs more that the FX2 3.55 is towing. Like I said earlier, that 500 extra pounds should cover the roughly 350lbs heavier the 4x4 is and also this drive-line loss.