No more V8 in F150?

[lostcreekranch]

Considering that you are comparing a computer controlled engine to a mechanical diesel that just needs power to the fuel solenoid and to the starter to start/run, probably not well, but it would probably do as well as the V8 (or any of their current competitors).

Aaron Z

 

[houstonscott]

Considering that you are comparing a computer controlled engine to a mechanical diesel that just needs power to the fuel solenoid and to the starter to start/run, probably not well, but it would probably do as well as the V8 (or any of their current competitors). Aaron Z

You are making excuses.... The answer to the original question question, where's your V8, the answer is its been regulated right out of the truck. V6 is not an improvement, it's a response to over regulation. HS

 

[aczlan]

You are making excuses.... The answer to the original question question, where's your V8, the answer is its been regulated right out of the truck. V6 is not an improvement, it's a response to over regulation. HS

Excuses? Show my ANY modern V8 that can handle what that truck on TopGear went through. They would ALL fail after the computer gets wet and let's the magic smoke out.

The improvement of the Ecoboost is that it let's you get HP and torque comparable to (or better than) big block V8/diesel horsepower and torque out of a V6 without as much of a hit on unloaded milage.

Aaron Z

 

[Sysop]

The improvement of the Ecoboost is that it let's you get HP and torque comparable to (or better than) big block V8/diesel horsepower and torque out of a V6 without as much of a hit on unloaded milage.

Aaron Z

+1, it does very good at it too.

 

[fordmantpw]

Excuses? Show my ANY modern V8 that can handle what that truck on TopGear went through. They would ALL fail after the computer gets wet and let's the magic smoke out.

The improvement of the Ecoboost is that it let's you get HP and torque comparable to (or better than) big block V8/diesel horsepower and torque out of a V6 without as much of a hit on unloaded milage.

Aaron Z

Don't forget that it gives you that torque with a big flat curve that's available all across the rev range. THAT is what makes me want an EcoBoost for towing my fifth wheel.

 

[houstonscott]

Don't forget that it gives you that torque with a big flat curve that's available all across the rev range. THAT is what makes me want an EcoBoost for towing my fifth wheel.

I wouldn't tow anything bigger than a canoe with a 6 cylinder half ton truck, maybe a lawn mower. Why not tow with a Honda Accord it's a V6 half ton vehicle. Lol. HS

 

[KennyG]

To keep this all in perspective, Ford could build a V-8 Ecoboost. But what would be the point? It would be similar in cost and performance to a PowerStroke by the time you beefed everything up for 600 to700 ft-lbs of torque and how useful would that be in a truck with the F-150 curb weight? Bottom line is that the Ecoboost 6 seems perfectly matched to the market. The V-8 will be offered as long as the sales numbers justify it.

 

[fordmantpw]

To keep this all in perspective, Ford could build a V-8 Ecoboost. But what would be the point? It would be similar in cost and performance to a PowerStroke by the time you beefed everything up for 600 to700 ft-lbs of torque and how useful would that be in a truck with the F-150 curb weight? Bottom line is that the Ecoboost 6 seems perfectly matched to the market. The V-8 will be offered as long as the sales numbers justify it.

It wouldn't be similar in cost (likely $5-6k less than a PowerStroke), but it would likely have in the neighborhood of 600-700 ft-lbs of torque you mention. That's considerably less than the near 900+/- of the '17 PowerStroke, but it's still plenty for most people. The big difference is fuel economy...that's where the diesel will win out, but with the higher fuel costs of the past 5+ years, it's somewhat of a wash.

 

[Renze]

You guys are complaining about issues with cylinder deactivation systems on V8 engines: Cylinder deactivation is a cure to the problem of throttle vacuum losses of spark ignition engines. Diesels suck air without restriction, it has a variable air/fuel ratio. Air is constant (on an atmospheric engine) power is controlled by the amount of fuel injected. On carbureted SI engines, power is controlled by squeezing the amount of air thats sucked in by the pistons, whilst the carburettor keeps the air/fuel ratio more or less constant.

At idle (lets say 800rpm) a 5 liter engine would create, lets say, a 0.95 bar vacuum with the throttle body. it would suck 5 liter / 2 (four stroke) x 800rpm is 4000 liter per minute of air through the throttle valve. at a 0.95 bar vacuum this would mean it would take 4000 liter x 0.95 / 600 is 6.33 kilowatt, or 8.61 horsepower to choke the engine at an 800rpm idle against the vacuum created by the throttle valve.

Cruising at highway speeds at a 25% load at 3000rpm, the throttle valve vacuum would consume 0.75 bar (1 bar is atmospheric pressure) x 5 liter displacement /2 (four stroke) x 3000rpm / 600 is 9.375 Kw or 12.75 horsepower.

Cylinder deactivation is a means to reduce the throttle losses, because the deactivated cylinders dont take part in creating a vacuum between the piston and the throttle valve anymore.


Now, Ecoboost is using a smaller displacement that creates less vacuum at idle or partial load conditions, and adds the air with a turbo when its needed. Its like cylinder deactivation, but without the stepped power transitions, and without the extra friction of the larger engine. Next to that, modern turbo technology is giving the opportunity to give a much more desirable torque curve.

Really, its not a bad solution !

 

[joefromga]

Try driving one. The ecoboost will make your tired v8 feel like any car from 1976. Slow, old, loud, smoky, heavy and outdated.