Personal thoughts?? Come on, it's plainly obvious by Fords ratings and just by driving the 2 with the exact same truck configuration and feeling the difference. It's not marginal, it's very significant.

I'm not saying the 5.0L is a bad motor, it's just what it is, a small displacement V8 with inferior torque to the bigger motors. That's why there's larger motors and turbo motors. Hek, Ford rates their 5.0L at the same HP, torque, and at the exact same rpms as what GM does with their 6.0L. Just from driving trucks my whole life, I can confirm that the 6.0L will have more power at the low end.

Hek, my old 2005 Nissan Pathfinder had a 4.0L DOHC 24 valve engine. Rated at 270 HP and 291 ft lbs torque at the same rpms that many small V8s are rated at. That Pathfinder didn't have any good torque despite what the numbers say. It had to be very peaky as I would expect for a very small engine touting big numbers. It was fast as it was timed by many review magazines at 7.5 sec 0 - 60 but it wasn't what I'd call powerful. Fast and quick yes, powerful no.

 

Nonsense! Just chain two trucks together, facing opposite directions! The truck that rolls backwards loses. What could possibly go wrong?

 

That is a great idea! I wonder if the wife would be up for that when the new truck comes in before I get rid of the old?

Anybody out there have a 9000lb horse trailer they could run a 0-60 on level ground with their 5.4 for comparision??

"We also ran the same performance tests on level ground. The zero-to-60 mph time with the trailer was cut almost in half, to just 16.85 seconds"

http://news.pickuptrucks.com/2011/02...liter-v-8.html

 

Pickuptruck.com did a shootout with 2009 model year.

The F150 with the 5.4 and a 6500lbs trailer did 0-60 in 17 seconds flat.

But the 5.4 is WAY better then the 5.0 for towing, because Ford rated the 5.0 at 9700lbs max with a supercrew 4x4 and at 11 200lbs with a 5.4...

Ford need to sell Ecoboost because to much cash as been put into RD... No freaking wonder they won't rate the 5.0 higher.





http://special-reports.pickuptrucks....shoot-out.html

 

Perfect so someone explain how the 5.4 is better when the dyno shows the 5.0 to be better and it pulls a 9000lb trailer faster than the 5.4 with a 6500lb trailer???
Too many butt dynos that aren't calibrated correctly around here

I just read that shootout. It was actually for the 2009 models
http://special-reports.pickuptrucks....shoot-out.html

 

The 2008 5.4 had the 4speed, the 2011 5.0 has a 6 speed. Completely biased comparison...

 

It's a 2009 F150, so 6 speeds.

It's a typo. Changing it right away.


Here's the link, see for yourself. http://special-reports.pickuptrucks....shoot-out.html

 

But I don't drive off the line everyday at 4 - 5K rpm's, if I did, the 5.0L would win. Those tests were conducted with the pedal to the metal, at high rpm's where the 5.4 is the weakest. When I pull my rig, I hardly ever go past 3K rpm's with the 5.4. Yes, I would like better passing power, but I need that less than I need getting off the line. The 5.4 just simply has more torque at the low end.

If I was getting a new truck, it would be a hard decision between the 5.0 or the eco.

 

Mike Up,

I was only asking if you knew this for a fact or just your personal belief.


A 2009 5.4L, 145" WB, 2wd SCab with 3.55 LS has a max tow capability of 9800 lbs. and the same configuration in a 2011 5.0L is 9500 lbs., I'm not too concerned about the 5.4L vs. the 5.0L. If 300 lbs. was a deciding factor in my purchase I would have purchased a Super Duty.

I have driven and/or owned a 5.4L 2V SCab, 5.4L 3V SCrew 4wd, 4.6L 2V SCab/Reg Cab, 3.5L EB SCrew FX4, 3.7L Reg Cab, 5.0L SCab, two Titan Crew Cab's and two Hemi 4 door trucks. Of these trucks, the 5.0L SCab felt the strongest in off the line performance, passing, and in town driving. This does not mean that I am correct or incorrect. It simply means this is what I observed.

 

[QUOTE=Stormsearch;4492600]The 5.4 just simply has more torque at the low end.QUOTE]

Says who? Where has anyone seen a dyno or test showing a 5.4 has more low end torque than a 5.0? Even if it's not a same day same conditions situation. Where is there any evidence that the 5.4 has more power anywhere in the rpm band. If the assumption is made based on a test drive please state that it is the case. I respect the efforts of people test driving these things and giving their opinion but so far it seems those opinions are half and half or favor the 5.0 power at all rpms. So I'd like to see any evidence the 5.4 is stronger than the 5.0 at any rpm. I'd say right now we have no idea.

 

I'm interested in these 2 that would've test. I'm surprised the 5L would outperform the EB. Because of weight? I'm actually thinking of going with the 5L reg. cab for performance.

 

All you need is K&N to test the 5L, and any bias would cancel out, besides atomospheric conditions.

 

https://www.f150online.com/forums/20...t-drive-3.html

Post #35

I felt the fully optioned FX4 was a little heavy for the EB engine. Once again, just my observations... Everyone should test drive two or three different wheel base models to decide which best meets their wants/needs.

 

You do know you can get a 3.7L v6 2wd screw 5.5ft bed?

 

How about this?

5star tuning for the 5.4 F150 and 5star tuning for 5.0. Same dyno, same tuner, same shop...

5.4 Dyno


5.0 Dyno



RPM 5.4 5.0
2000 160lb-ft 218lb-ft
2500 220lb-ft 238lb-ft
3000 230lb-ft 240lb-ft


But the dyno for the 5.4 is the 4 speeds automatic.