Seams like an easy way to get back to #1 it gasoline engines. Does it not fit? Are they too worried about CAFE?

 

Ford has a whole new line of V8s that will start appearing by early next year that they are looking at to get them back in the unquestioned forefront.

As for the claim they are last in HP and torque, put displacement versus displacement, I'm not convinced that's true.

How does a Ford 5.4 V8 stack up against a GM 5.3, for instance?

 

I didn't think trucks fell under CAFE, since the Magnun is classified as a truck because of it's 'flat load surface' and thus doesn't count again DCX? I seem to recall some discussion on the matter, but wasn't it shot down?

 

Trucks have separate (and less stringent) CAFE requirements. That's why it pays to get as many vehicles as possible classified as trucks.

 

I think the point is, if you're looking for a competitively powerful 1/2 ton and have the money to spend for the top of the line models, you aren't looking at Ford. The top 300 horse 5.4 doesn't even pull away from the middle of the road GM 5.3.

Will the new F-150 engines come out with the '09 redesign or sooner?

 

5.x motors.....

Ford 5.4 = 300 @ 5000 / 365 @ 3750
GM 5.3 = 315 @ 5200 / 338 @ 4400
Dodge 5.7 = 345 @ 5600 / 375 @ 4400
Toyota 5.7 = 381 @ 5600 / 401 @ 3600

Those numbers can be spun any number of ways (pardon the pun). However, looking solely at useable power, Toyota has the market right now. Ford doesn't do bad compared to either GM or Dodge when you consider that you want power in the low rpm range with a truck (torque peaks below 4k, while it is above 4k for both the GM and Dodge motors).

For the 4.x liter V8s....

Ford 4.6 = 248 @ 4750 / 294 @ 4000
GM 4.8 = 295 @ 5600 rpm / 305 @ 4800
Dodge 4.7 = 235 @4800 / 300 @ 3200
Toyota 4.7 = 271 @ 5400 rpm / 313 @ 3400 rpm

For my truck, I'm taking the Toyota or Dodge motor if I have to use the smaller V8, as both make excellent power low in the rpm range. The Ford is lagging, and the GM motor is too high strung (for a truck).

GM does have the best fuel ecomony (becoming more and more important).

Source: Each car maker's website (Dodge's sucks), and www.fueleconomy.gov.

 

Bob you left out GMs 6.0 V8 that puts out about 360 horses. Also I think many here hope the 6.2 AFM VVT V8 finds its way into the GM pickups pretty soon.

 

Yes, I was responding to Guy's post....ie....comparing like (or similar) displacements.

That said, the 6.0 makes 375 lb/ft torque @ 4300 rpm. The 5.4 makes 365 lb/ft torque @ 3750.

Bob

 

Screw it, GM should just go all out and option the 6.2 VVT with 6spd auto from 1500 on up.
Then compare the physical size of the 6.2 to the new 5.7 V8, and show that GM can make more power out of a smaller package.

 

 

The F-150 is also the heaviest of the bunch. Now, I don't know how many people get into stoplight races with their 1/2 ton trucks, but it's still good for bragging rights. The general view on the street is that the Ford motor has fallen to the bottom of the pack. Sure it's a torquey motor for its size but when you compare the total package--engine and weight--I could see how it might feel inferior.

 

I guess the Boss V8s will be out soon enough (2009?)

The Lincoln Navigator is a vehicle they should have really looked into adding the 3v V10

 

The F-150 is several hundred lbs heavier than most, which certainly hurts all areas of performance.

If you're after stoplight bragging rights, then ok - talk about HP, and forget about how much rpm it takes to get that HP. HP rules the day here. But for trucks, it really is worth nothing but for bragging, and the other guy can brag just as forcefully this their truck makes great torque at xxxx lower rpm.

That said...I'm not trying to dispute your assertion that Ford has fallen to the bottom of the truck engine power pack. In fact, I generally agree.

Final comment....the 4.6/5.4 motors are good truck motors. However, the current trend has been towards bigger/more powerful motors, and 5.4 liters is about as big as the mod motor will get without adding two more cylinders to it (isn't currently available in light trucks anyway). A new engine architechture is needed bad, and soon.

About the V10...it is 6.8L, and is rated at 362 hp @ 4750 rpm and 457 lb/ft torque @ 3250 rpm. Given the low rpm power numbers (to say nothing of its physical size and weight), it is certainly a "truck" motor.

robvas....where do you get your MPG numbers for V-10 equipped trucks?

Bob

 

Peak numbers are irrelevent. The curve is important. The tq curve on my LS1 looks like a table. I make 350+ from 3000-5700 with a peak of 373. It is over 300 at 2500 rpms.

 

All trucks sold now are VERY powerful. They have at/near/over 300 HP and even more torque! Most F-150s are for light duty work, hauling electrician's or plumber's toolbox to and from work, or for off-road use to get to job sites through mud.

Why does everyoen feel the need to have the most powerful engine in a truck? It's not a race car! And it's not that owners actually NEED such powerful engines.

If anyone can justify needing a V10 engine, they should go to a heavy duty series F250 or F350, and better yet, get a diesel engine. There should be no need for gasoline V10 in truck applications.