f150 eco boost

Another advantage of the direct injection that I can think of, is you only have to get the air through the valves, then you add the fuel increasing the charge density. If you add the fuel to the air in the induction tract it takes up some of the "room" that the valve can let in, by adding it after the valve has closed you get more charge into the cylinder.

I'm not positive, but I think the Eco Boost motor in the trucks will be different than in the cars. They are using the Eco Boost name for all of the direct injection turbo motors. In the F150 that is supposed to be the big motor unless you get a Raptor with the 6.2. The numbers on both motors are very close. I have also heard that there may be a future Raptor with that motor and the boost turned up.

My parent's 4.7 wj has the 3.73 gear ratio. that definitely does not hurt.

It tows about the same as my dad's 02 4.6 v8 explorer with 3.73's. And a lot like the 4.7 v8 04 4runner of my Fiance's. I've towed the martinique with all 3 trucks, and of course the full size chevy we had too.

thatdude596 wrote: time will tell to see how the new motors perform. i think its great for the american automobile industry to be making a huge comeback and new innovations. i think they will become the big 3 again shortly. toyota has taken a huge hit of late. i still prefer mopar=moar power!

The base 3,7 is already a proven mill in other ford vehicles, as is the ecoboost 3.5 DI   twin turbo mill, and even the 6.2 has been out for a solid year in the raptor. Those are proven. The 5.0, I have no worries about because Ford is very cautious about untried things and don't want to risk any of their high quality remarks to take a hit. They tested the hell out of the new 5.0 in test mule mustangs for a couple years.

I don't know what gear ratio you had in that 01 durango with the 4.7, but with the gearing in the parent's WJ 99 grand, it tows very well. It tows the nautique better than the 94 2500 350 full size chevy we had.

time will tell to see how the new motors perform. i think its great for the american automobile industry to be making a huge comeback and new innovations. i think they will become the big 3 again shortly. toyota has taken a huge hit of late. i still prefer mopar=moar power!

Gary S wrote: horkn wrote: Adding the pentastar 3.6 OHC V6 as a base motor would help hp and tq, but even that has been critiqued in the new grand cherokee as not having enough tq. I have had 3 Cherokees and 1 Grand with the old 4.0 inline.That Grand is so heavy that if I had to do it all again I'd get the V8.I cannot imagine having a 3.6 no matter what the spec's say.

I've had a 4.0 ZJ grand, and driven enough cherokee (XJ's) and 4.0 WJ grand cherokees (99-04)that I prefer an 8 in those two as well. The 4.7 SOHC in my parents 99 WJ grand is a quick and fun motor, and has no fuel mileage disparity from the 4.0 I6 ones to boot.

The new pentastar sounds good on paper, but when Motor Trend comparo tested the new 3.6 V6 2011 grand to the 2011 4.0 4runner, the 4runenr had a much better engine, tuned more for tq than HP, unlike the v6 new grand cherokee. Maybe once they ditch the 5 speed auto and get a 6+ speed auto it can be better all around. That will be a couple years though.

horkn wrote: Adding the pentastar 3.6 OHC V6 as a base motor would help hp and tq, but even that has been critiqued in the new grand cherokee as not having enough tq.

I have had 3 Cherokees and 1 Grand with the old 4.0 inline.That Grand is so heavy that if I had to do it all again I'd get the V8.I cannot imagine having a 3.6 no matter what the spec's say.

I've driven an ecoboost MKT (lincoln version of the flex). It was VERY impressive.

The only thing I don't get is that the 355hp of the ecoboost twin turbo v6, is at the same hp rating as their new 5.0 in truck form. As awesome as the new 5.0 motor is, I can't see any reason to buy that over the ecoboost, unless the 5.0 is less money up front, and less money to insure.

All of the new F150 drivetrains for 2011 are impressive. 300 hp out of the base 3.7 V6, along with a nice tq rating too? damn... makes you wonder how long GM will soldier on with their 4.3. I'm still shocked that GM still runs those as the base motor.

Dodge runs the 3.7 OHC but at 210 hp and like 235 tq, that is far from a powerhouse either. Adding the pentastar 3.6 OHC V6 as a base motor would help hp and tq, but even that has been critiqued in the new grand cherokee as not having enough tq.