SKBORDERS

It may be that the gap between them is artificially inflated by ford because they are pretty close on the Dyno. The 2.7 does run out of steam at higher RPM and the 3.5 and 5.0 does not and therefore they would pull better under conditions or weight that requires a higher RPM. The 2.7 also does not get as good of gas mileage as the 3.5 towing a heavy load.

I think all the engines are needed because the 3.5 n/a fills the need of the person who just needs/wants a truck and does not plan on towing a lot or tow lighter weights. The 2.7 is the commuter who wants more power, the ability to tow more just not on a regular basis. The 5.0 is for the person who just wants a V8 no matter what and the 3.5EB is the work horse and for the person who needs the most out of his truck.

Tystevens

Honestly, I think they could just make the 2.7 the base engine. In reality, it probably is the 'base' engine on most lots -- most of the F150s on the lots seem to have the 2.7, 3.5 EB, or 5.0, as I don't think I've seen a 3.5 n/a in anything but a basic single cab work truck.

I don't think I ever had my 3.5 above 3k rpm towing! Even up Parleys Canyon here in Utah (a fairly long, steep interstate climb that goes up 3500 ft climb w/ grades up to 7%), it would crank along at 65 mph+, in 4th gear at about 2800 rpm, with power to spare. I can't wait to see what the 2.7 can do.

SKBORDERS

I am going to give it a go as soon as I can.

acadianbob

Part of the deal here is that the 2.7 is really GenII and the 3.5 is GenI. Wait until the GenII 3.5 comes out . . . . it will be a beast.

BRUTE448

hence ford trade marking the moniker "ecobeast" a year or two ago!? ill place my bets with you, sir!