Why no Ecoboost in the F250?

[Hay Dude]

Metallurgy is a replacement for displacement. The first small block V8s of the 50s put out about 120hp, and dont live as long as a four banger 2.3 liter engine of the 90s, putting out the same power but doing 300.000 miles.

I was going to say fuel delivery is the big improvement. Timed multi-injection events and other related improvements (4 valaves per cyl, dbl OH cam, turbo, etc)
Yeah because like nearly everything automotive related or built now compared to the 50’s isn’t greatly improved?
300k miles is also a bit optimistic

 

[Snobdds]

It's silly to put a 3.5 ecoboost in a 250/350 truck. There is not enough displacement for that application. It would be better on a 5.0 type motor. If you can get over head cams with vvt, twin turbos and all the ecoboost bottom end upgrades...that would be a awesome motor. My better half had a 2016 ml550 with a bi turbo v8. It was awesome when it ran.

I just don't think there is a big enough market for that motor. You would have to have a lot of diesel guys switch over. I will always haul my equipment with a diesel, being at this high elevation. Naturally aspirated engines are dogs up here. I love my ecoboost, great power going over mountain passes all the time.

 

[Hay Dude]

Amazing how you see all those gas CUT tractors out there lol
People cry like babies because their diesel tractors over 25HP have expensive emissions. So why don’t the manufacturers put turbocharged gas engines in them if they’re almost as good as diesel? It would be cheaper, too.

What??? Not as much torque or longevity? surely you jest….

 

[K5lwq]

Not much disagreement with the comments here but I am very impressed with my EcoBoost. 2022 F150 3.5 rated at 400HP @ 6,000 RPM and 500 ft lbs of torque @ 3,100 RPM. It is rated to pull 14,000 lbs. I am averaging 23 MPG the way I drive. Not bad in my book.

 

[Snobdds]

Because there’s no replacement for displacement. Sure little engines can make a lot of power but not for long term.

There is a replacement for displacement and it's called turbo psi.

At 14.7 psi, it will double the displacement of a motor. A 3.5 ecoboost at 14.7 psi is equivalent to a 7 liter NA engine.

 

[BravoXray]

There is a replacement for displacement and it's called turbo psi.

At 14.7 psi, it will double the displacement of a motor. A 3.5 ecoboost at 14.7 psi is equivalent to a 7 liter NA engine.

It also doubles the cylinder pressures and effective compression ratio.

I'll pass on one of those.

 

[Snobdds]

Amazing how you see all those gas CUT tractors out there lol
People cry like babies because their diesel tractors over 25HP have expensive emissions. So why don’t the manufacturers put turbocharged gas engines in them if they’re almost as good as diesel?

The tech has been out 10 years...

Plus, you beat the drum on inline simplicity. Why would they discard simply for tech totally out of their wheelhouse...

 

[Hay Dude]

The tech has been out 10 years...

Plus, you beat the drum on inline simplicity. Why would they discard simply for tech totally out of their wheelhouse...

I didnt even mention in line lol
Just gas v. diesel.
That’s all you
Move on from the in line hate. It’s boring anymore.

 

[Snobdds]

It also doubles the cylinder pressures and effective compression ratio.

I'll pass on one of those.

Compression ratio doesn't change, air and fuel are scaled up with demand to keep compression constant.

Cylinder pressures are higher, the 6 bolt mains supporting a girdle seems to be holding up, even on hot tunes.

 

[Hay Dude]

Back in the '70s a local trucker used to run a Chevy 427 powered C60 or C70(I think) single axle tractor pulling a 3 axle trailer hauling steel coils between Chicago and Detroit. He said he got about 4 mpg loaded and 6 mpg empty. He bought a new one every other year as the 427 would be worn out. He said in the long run it was cheaper than buying a diesel tractor that was over twice the price.

Whew. Every 2 years back in the 70’s?Has he ever heard of depreciation? lol
A worn out 427 truck is worth about $1500 bucks.

Besides, 70’s diesels in that type of truck weren’t much to write home about back then. Maybe 150HP?