No more V8 in F150?

[Steppenwolfe]

No, its a pipe dream of all these tree hugging eco boom lovers. Some are so blind that they think that everyone should follow Ford...

Not gonna happen.

Better truck, happier customers...

 

[Renze]

Well, well, looks like the 5.0 is coming back for 2018. Yeah, little V6 just doesn't cut it, for real truck work.

How many million mile gas V8 engines do you know of ? I know several Volvo 2.1 and 2.3 redblock, and 2.5 whiteblock at, or near 1.000.000 kilometers. And in diesels, Mercedes OM 616, OM 617, OM 605 OM 606 and VW 2.5 TDI outrun the tacho.

The bad mouthing of V6 in full size cars and trucks originates from the same era as when diesel got a bad name in trucks: during the oil crisis Oldsmobile converted a gas engine to diesel, which couldnt handle the twice as high piston pressure. (Mercedes had the 300D turbo of also 120hp but from 3 liter, which ran a million km) and in the same era, salesmen that ran a lot of miles, started buying the cheap-*** economy V6 engine with a much lower designed lifespan, for fuel economy.

And then, lets get real: for "real truck work" you dont get a grocery getter half ton with comfortable suspension, for "real truck work" with a trailer you'd need a 3/4 ton with "real truck" rear springs....

 

[WilliamBos]

How many million mile gas V8 engines do you know of ? I know several Volvo 2.1 and 2.3 redblock, and 2.5 whiteblock at, or near 1.000.000 kilometers. And in diesels, Mercedes OM 616, OM 617, OM 605 OM 606 and VW 2.5 TDI outrun the tacho.

The bad mouthing of V6 in full size cars and trucks originates from the same era as when diesel got a bad name in trucks: during the oil crisis Oldsmobile converted a gas engine to diesel, which couldnt handle the twice as high piston pressure. (Mercedes had the 300D turbo of also 120hp but from 3 liter, which ran a million km) and in the same era, salesmen that ran a lot of miles, started buying the cheap-*** economy V6 engine with a much lower designed lifespan, for fuel economy.

And then, lets get real: for "real truck work" you dont get a grocery getter half ton with comfortable suspension, for "real truck work" with a trailer you'd need a 3/4 ton with "real truck" rear springs....

500,000 km v8 are quite common, the newer gassers are more reliable than they ever have been. Toyota took a 1 million mile (1,600,000km) v8 tundra and gave the owner a brand new one. His was original drivetrain.

The newer v8 are also extremely efficient, they make owning a light duty diesel a hard choice. The emissions equipment on diesels is far from flawless and extremely expensive. HD gas trucks are still selling for this reason.

 

[ClaySlayer]

Engines are so much more complicated today that the complexity difference between the 5.0 and Ecoboost is roughly a couple turbos and an intercooler. In 2018, both have twin independent variable cam timing, direct and multi-port fuel injection, etc... There's nothing traditional about a V8 anymore. As long as the components are engineering tone stout enough it should be fine. Turbo diesels have been living under high boost for generations.

 

[Renze]

Turbo diesels have been living under high boost for generations.

Even the naturally aspirated Oldsmobile 5.7 diesel had a twice as high piston pressure than its gas counterpart... thats why it failed...

The 3.5 liter ecoboost still has a lower piston pressure than a naturally aspirated 7.3 diesel because of its much lower compression ratio.

I know of a Swede with a 1068hp Volvo 2.4 liter inline 5... He uses the shortblock of the D5 diesel engine, with the head of a gasoline turbo engine.

 

[Renze]

Turbo diesels have been living under high boost for generations.

Even the naturally aspirated Oldsmobile 5.7 diesel had a twice as high piston pressure than its gas counterpart... thats why it failed...

The 3.5 liter ecoboost still has a lower piston pressure than a naturally aspirated 7.3 diesel because of its much lower compression ratio.

I know of a Swede with a 1068hp Volvo 2.4 liter inline 5... He uses the shortblock of the D5 diesel engine, with the head of a gasoline turbo engine.
In Volkswagen tuning the same goes, using a TDI shortblock for a high horsepower turbo gas is not uncommon.

I guess the popularity of the Nissan RB26 for tuning, is also because it shares the build strength with the RD28T turbodiesel.

In tractorpulling they use the same principle as well, swap the injector for a spark plug and lower the compression ratio to run on ethanol, so you can use the lower compression ratio to put more boost in, whilst not increasing the max piston pressure, e.g. mechanical cranktrain load.