doug97gxe

ooops sorry about that

w00t692

Eh? The 5.0 has linear power, many many many other v8's had low end and rolled over hard up top. That isn't linear power. This comment makes sense... for a supercharged v8.

w00t692

This is my stock vs tuned dyno. The stock motor makes excellent power and torque. The 5.0 definitely does not make 400 tq to the tire stock.

F175

jetjoe

To add another point of view. So many folks here imply the engine is the determining factor for towing. It is one, but not everything. Along with those tow packages comes other items. Towing capacity is always based on the weakest link. And with a basic F150 that is the wheels and tires. That data tag on the door post is as delivered. Change anything and it is no longer valid. Point being, engine options is only part of the equation. Even the smallest engine towing the heaviest load will sooner or later get you up the hill.

As I mentioned elsewhere, stopping that load and stability is the real consideration. Having many different Ford's over the years, both F150's and Super Duties, I have no doubt that F150's are very limited in either. I love the aluminum body but it does enter into the stability issue. I mentioned I recently hauled over ten thousand pounds with my 2016 Screw 3.5 NA. The engine was not in any way struggling but the highway stability was sorely lacking. With every semi passing the vehicle would wander all over the highway. And, as I mentioned above, I also ended up with blue brake discs. I upgraded the brakes and installed larger wheels and tires. Takeoffs from a 2018 platinum. Much better although the weights have never been near what the above mentioned trip had. (I'll be more careful when I load trailers now) But the sway when semi's now pass is nearly insignificant. Point being the 17" Michelins installed on my basic F150 with a tow package was simply too soft in the sidewalls.

And again, I will say that if towing is your main concern, buy a Super Duty! I've had both and there is no comparison between the two when it comes to towing heavy loads. Hell, some of you guys should be considering class 9 rigs! If you can't afford it? Perhaps you shouldn't be towing at all but certainly not heavy loads. I really believe all of the truck builders have grossly overstated what these trucks can safely haul in their constant battle to outdo each other. Take special note of the small print which always notes the weights allowed are under ideal conditions and other factors need to be considered. Wind, terrain (hills), temps and road conditions to name a few.

jetjoe

Turbo's are exhaust driven. Need higher RPM's (exh. airflow) to produce results. Super-chargers are geared. Pumps air at all times, but more than required at all speeds. Especially beneficial when used as originally intended. Slow turning diesels and aircraft engines. As HP is a calculation of time, (RPM's) no engine is "linear" as I think your trying to say. Or, they all do as all produce some torque at all RPM's. Eg: A 400 HP truck engine produces this around two thousand RPM's. Auto engines require five to eight thousand RPM's to achieve the same.

How did this thread turn into this subject?

RX1Cobra

Turbo's don't need RPM's to make boost they need load. Look at the low end TQ of any modern turbo engine. And supercharges absolutely do not make more air than needed at all times. If they did a supercharged engine would be in boost 100% of the time.

10sne1

11screw50

great, now go look at the video and look at what I posted. The dyno in the video showed both the 3.5EB and 5.0 at about 170hp/290lb-ft at 3k and both at about 250hp/320lb-ft at 4k. I just found that interesting.

What year is your truck? the video compared a 2015 EB and a 2018 5,0 and the 5.0 made more peak hp and more peak tq. The other thing to consider is that the tested trucks definitely had different transmissions, they may have had different gears too...did they properly adjust and change settings to reflect those facts? who knows. I was just responding to a video that someone else posted (and it did, in fact, show the 2.7 making more torque at low rpm than either the 3.5EB or 5.0). Obviously they have changed something in the 3.5EB for 2018 since the rating torque rating is quite a bit higher and I lamented the fact that they did not test all 2018's as it would have given a much better picture of current capabilities rather than mixing different years. If your truck is a 2018, 400 at the wheels makes sense. If it's older, 400 does not.

FWIW, those are pretty impressive number (both stock and tuned). I suspect mine would be 310-320 at best for both hp and torque. Luckily, I'm fine with that.

user 83720

2.7

cheaper to fix
cheaper on gas
still good for hauling 7-8k