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Old 06-19-2016, 04:43 PM   #29
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From what I've read, 5.0 L V8 may have a better engine braking than EcoBoost. Counts when going downhill.
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Old 06-19-2016, 05:29 PM   #30
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F150 v6 ecoboost or 5l V8?

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Originally Posted by pappy19 View Post
That is one consideration, and so is the fact that twin turbochargers will eventually fail. So you may beat the 5.0 to the top of the mountain, but it may pass you while on the side of the road with your hood up. The other advantage of the 5.0 is that can use "flex-fuel", or 85 octane which doesn't work well with the eco-boost engines when towing. Like I said, with the 3.73 rear end ratio, I'd take any of the commonly available Ford F-150 engines; 5.0, 3.5 or the 2.7, all will work.

Burning ethanol is not a good thing as fuel economy drops 30-40 %.It grows algae quickly and is a corrosive fuel.No benefit to using it other than the novelty.
Turbos Pappy have been used for many years and the new generation turbos are virtually bullet proof.The main turbo killer is dirty oil and not changing oil regularly as these little turbos heat up to 1300 degrees on full boost and will actually glow cherry red.They break down oil much quicker than normally aspirated engines.

With regard to compression braking with small displacement engines whether 3.5 or 5.0 you will not see much difference between them.


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Old 06-19-2016, 06:35 PM   #31
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Well, on turbos, I can say that they are pretty common on engines today and, in the F150 one of the gauges I have set up on my dash (fancy pick your gauge dash) is turbo boost. I RARELY see any boosting past 1/4 even at harder acceleration which says to be that they are not heavily "boosting".

I do not know about hills yet and engine braking but I will say that the transmission is different in this iteration compared to my 2009 V8- more aggressive downshifting when towing.

Something you may consider is the 2.7 liter EB. It is the big news and can tow around 8500#. What you would have to look at is the payload rating. You would definitely need max tow version but that engine is very powerful too and gets 2 mpg better than mine when not towing. Just check the payload. As a comparison, my max tow Lariat with 4x2 3.55 Supercrew has a payload of 1725# loaded with goodies and, as I have shared, am convinced that the 20" wheel package reduces my payload by 200#- figured out by comparison of features and config of trucks. The 2.7 has power output more than my 2009 so I know it could tow your Safari but it would be closer to its limits. I chose to go for the gusto but actually our max weight is 7000# not 8500 - either works.

I would look used 2015 ecoboost but be warned that sales people are weak at understanding the difference between payload and tow capacity- two different things. If it is a Ford, the sticker inside the driver door where the tire info is will say no more than so many pounds in this vehicle (payload). Your people, cargo and TONGUE WEIGHT are subtracted from that figure. Mine is actually 980 lbs. not the 860 Airstream says. Then your tow capacity is based on total loaded trailer weight maxed out- fully loaded, etc- Gross weight.

If you look for an older F150 then do not go below a 3.55 rear and make sure it has at least the tow package if not max tow. It adds transmission cooler, bigger axle, and other things. Don't just look to see if it has a receiver or wiring- all or most do anyway regardless of capabilities. You need a big kahuna. If you are at a truck lot you can almost tell by how high up the truck is compared to others - excluding jacked up monster trucks! In 2011 I was new to all of this too and had never owned a truck, mostly foreign sports sedans. I was uncomfortable at first in a truck and bought a CPO truck just in case. I was so big and clumsy feeling. Now I really like it. When I am in a car it feels cramped.
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Old 06-20-2016, 01:49 AM   #32
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From what I've read, 5.0 L V8 may have a better engine braking than EcoBoost. Counts when going downhill.

Hi, this is one of the draw backs that I expected. My Lincoln 5.4 L V-8 had quite a bit more engine braking than my 3.5 L Ecoboost. But the 3.5 L Ecoboost has way more power especially in the mountains.
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Old 06-20-2016, 10:09 AM   #33
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I bought a used Tundra Limited CrewMax 5.7 iForce with 8,000 miles way back in 2008.
The Tundra now has 53,000 miles.
I use an Equal-i-zer hitch, but want a ProPride one day.
This set up works well and is very comfortable.
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Old 06-20-2016, 10:30 AM   #34
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Forget the Mega Hitch. If you do need to lock the trailer there are many much cheaper ways to do it. A pad lock through the hitch lever or a ball lock.

As for the truck it depends on where you intend to go and if yo are going to use the truck for other things. If you are headed for the maintains go for the V8. If the larger share of the usage is daily to work and your going to say on the plains go for the ECO.

The biggest single thing that most people overlook when picking a TV is the rear axle ration. You smaller trucks are designed for Soccer Moms and so called fuel mileage. Then tend to have the wrong gear ratio for pulling. When used that way there is a noticeable lack of power.
Re: your use cases for turbo vs. V8: I'd make the exact opposite recommendation. The naturally-aspirated V8 will compete very well with the Ecoboost at/near sea level, but as elevation increases and the V8's output drops off dramatically the Ecoboost has a distinct advantage since it can largely compensate for the altitude. The Ecoboost's torque curve allows it to pull hard in the mountains at lower RPM than the V8 as well, even starting out from lower elevations.

The rear axle ratio info is spot on, though... especially if you're looking at used F150s. There are lots of previous-gen Ecoboost trucks with a 3.15:1 differential, which is perfectly OK for driving to your white-collar job at the office but not so great for towing. I think Ford dropped that configuration in the current generation... they start from 3.31 now, with the Max Tow package now including the 3.55 diff and only a couple of configurations allowing the 3.73 diff with a 3.5L Ecoboost.

Zola2006: If you're looking at the F150, look for a truck with the larger fuel tank. The tow mirrors are a nice option too. If you buy a 2WD truck, make sure it has the E-locker differential because that's more effective than the brake-based traction control when you need it.

In modern trucks, as long as you buy one configured the way you need it's a bit of a toss-up. Every brand is SO much improved over trucks of 20 years ago that it's hard to really go wrong, though Americans' use of the half-ton as a family car has resulted in lots of trucks set up in a way that they're not good tow vehicles, as mentioned above. Find what you like... from features to seats to looks. Whittle down the list to your favorite 2 and see if you can't get local dealers to let you take an overnight test drive in each of those to get a little more time with the vehicle rather than making a big long-term purchase based on a 10-minute test drive with a salesman yammering at you for 11 of those 10 minutes.
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Old 06-20-2016, 10:33 AM   #35
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Originally Posted by ROBERTSUNRUS View Post
Hi, this is one of the draw backs that I expected. My Lincoln 5.4 L V-8 had quite a bit more engine braking than my 3.5 L Ecoboost. But the 3.5 L Ecoboost has way more power especially in the mountains.
I don't have any personal experience with either engine, but figured there might be some merit to what I had read. Intuitively, the retarding force of 8 pistons should be more than 6.
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Old 06-21-2016, 12:02 AM   #36
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Quote:
Originally Posted by rostam View Post
I don't have any personal experience with either engine, but figured there might be some merit to what I had read. Intuitively, the retarding force of 8 pistons should be more than 6.

Hi, generally this is correct; But it's not the number of pistons as much as it is the size of the engine. A 5L six will have more engine drag than a 4L V-8 engine. Also the compression ratio make a difference too.
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Old 06-21-2016, 06:20 AM   #37
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Old 06-21-2016, 08:11 AM   #38
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Quote:
Originally Posted by rostam View Post
I don't have any personal experience with either engine, but figured there might be some merit to what I had read. Intuitively, the retarding force of 8 pistons should be more than 6.
Every TV Trailer combination has its own peculiarities. The slight edge in engine braking with the V8 doesn't make up for the overall benefits of the turbocharged V6. Once you learn how to operate your rig combination it really doesn't matter much.
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Old 06-21-2016, 12:38 PM   #39
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Owning an EcoBoost, I can not recommend it highly enough. I am sure the regular engine does well but the torque the ecoboost produces is something to behold. Turbos are also great at elevation. As was mentioned above, payload limits are very important with peeps, any gear and tongue weight with the WD and SC hitch. The 150 will pull anything in the Airstream line with no problem. My limitations are with the payload and when I get the TT, if I don't go the Interstate route, it will be with the 250 Powerstroke. My 150 is 2013, pre aluminum body so do not have the same payload capacity as the newer Fords.
Not having pulled a trailer be sure to get some instructions before you head out on the road, even if it is a U Haul in a parking lot.
I never buy anything used, but that is just a personal preference, and if everyone was like that, there would be no market for used equipment.
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Old 06-21-2016, 12:39 PM   #40
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Quote:
Originally Posted by ROBERTSUNRUS View Post
Hi, generally this is correct; But it's not the number of pistons as much as it is the size of the engine. A 5L six will have more engine drag than a 4L V-8 engine. Also the compression ratio make a difference too.
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Correct
Agree on the size of the engine mattering. Disagree on the compression ratio being a factor, at least for a gasoline engine. Unless the higher compression engine has more internal friction.

The engine braking on a gasoline engine is due to pumping losses, in the crankcase and past the throttle plate. There are also drivetrain braking effects due to friction, but these are the same for different engine braking characteristics.

Yes, the piston has to compress the air in the engine cylinder, and this takes energy (more so for higher compression ratios) but then after TDC the compressed air acts as a spring, and so the energy is recovered. Assume there is a fuel cut-off in play here, as on modern fuel injected engines.

This is unlike a diesel with an engine brake (ie Jake brake, not an exhaust brake) which uses the engine compression as a brake, then releases it at TDC (with associated noise).
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Old 06-22-2016, 09:23 AM   #41
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Originally Posted by GoWhereTowed View Post
Owning an EcoBoost, I can not recommend it highly enough. I am sure the regular engine does well but the torque the ecoboost produces is something to behold. Turbos are also great at elevation. As was mentioned above, payload limits are very important with peeps, any gear and tongue weight with the WD and SC hitch. The 150 will pull anything in the Airstream line with no problem. My limitations are with the payload and when I get the TT, if I don't go the Interstate route, it will be with the 250 Powerstroke. My 150 is 2013, pre aluminum body so do not have the same payload capacity as the newer Fords.
Not having pulled a trailer be sure to get some instructions before you head out on the road, even if it is a U Haul in a parking lot.
I never buy anything used, but that is just a personal preference, and if everyone was like that, there would be no market for used equipment.

I have a 2012 F-150 Ecoboost bought new and it is a dedicated TV for our 2013 30' International. Since there is only the two of us and two medium size dogs I have no payload issues. Loaded for extensive trip I am right at the allowed limits. So I am very pleased with the F-150 Ecoboost. Should we need an additional few hundred LBS capacity I will trade up to a new F-150 Ecoboost. From the point of view of actually needing one I can't justify running around with a F-250 power-stroke. That is not to say that I would never by one because they are truly great machines and it is fun to drive one. My daily driver is a BMW 540 so I get my adrenaline fix with that for now.
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Old 07-24-2016, 04:23 PM   #42
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It's been a while since I posted anything here but I wanted to comment on the truck I have.

I have a 2015 Ford F150 SuperCab with the 2.7L EcoBoost V6 and it tows our 1998 25B Safari VERY well. It's really amazing how they get so much power out of a 2.7L engine.

The Ford replaced a 2010 GMC Sierra Crew Cab with the 5.3L V8 and the Ford tows MUCH better with about 2-3 MPG better fuel economy.

We've been through the mountains in North Carolina on I-40 and it has no problem at all pulling up Black Mountain which is a fairly steep climb. My only regret with the Ford is that I didn't get another Crew Cab - Live and learn -

Anyway, I like the truck, smooth ride and the truck and loaded trailer weigh about 750 pounds less than the Sierra & trailer combination.

One final thought - The Ford has a built in sway control that you need to turn off if you have a sway control hitch or they will fight each other.
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