2014 F 150 Eco Boost Questions

[dustman_stx]

Originally Posted by HSVBamaBob

It sure is fun! Nothing quite like having some kid in a Honda pull up revving his engine....the look of surprise as a *truck* Leaves him in the dust is priceless!

Our son keeps bugging me to get a new exhaust system and a intercooler for the turbos - claims it would ad 50-60HP to The Beast!

Once the factory warranty is up you can tune it for another 100 ft. lbs, too.

[Scootdawg]

Originally Posted by HSVBamaBob

It sure is fun! Nothing quite like having some kid in a Honda pull up revving his engine....the look of surprise as a *truck* Leaves him in the dust is priceless!

Our son keeps bugging me to get a new exhaust system and a intercooler for the turbos - claims it would ad 50-60HP to The Beast!

My 21 year old is the same way, he wants the exhaust mods that add horse to it and some more sound. My wife told us no

[B and B]

I will do the torque boost but the pipes maybe not!

[RooVader]

I have the 3.55 screw 4x4 fx4. I average around 17 on my drive to work which is mostly interstate, 70mph. Overall it is around 16.

I can get 19 or 20 if I stay below 65, towing my 6500 lb trailer was around 13mpg.

I am really surprised to hear about the spring config for 20 inch wheels, which I have. You still lose a little on the tow rating with the 20 inch if I am not mistaken.


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[Toby]

Originally Posted by vstrom

One more thing, then I'll probably stop asking. What kind of MPG are you eco-boost 4x4 owners getting? Both towing and not towing. I doesn't really matter sense I've decided this is my best option.

My commute is mostly highway (about 30 minutes each way) and mine is showing roughly 16.5 MPG. I haven't reset it in awhile. Towing it drops down to 8-10 (depending on how fast I drive).

I have a 2012 with the 3.73 rear end in it though.

[dustman_stx]

Originally Posted by RooVader

I have the 3.55 screw 4x4 fx4. I average around 17 on my drive to work which is mostly interstate, 70mph. Overall it is around 16.

I can get 19 or 20 if I stay below 65, towing my 6500 lb trailer was around 13mpg.

I am really surprised to hear about the spring config for 20 inch wheels, which I have. You still lose a little on the tow rating with the 20 inch if I am not mistaken.


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I am not aware of any tow rating differences based upon wheel selection. Overall diameter of the tires is the same on the 18" and 20" options, meaning no increase in effective gear ratio. And the weight rating is the same- although I take the wheel weight rating with a grain of salt as they are given a rating to exactly correspond to the axle rating. The 20" wheels/tires do weigh a little more than the 18's from what I read, so they will use up some of your payload capacity.

[dustman_stx]

Originally Posted by B and B

I will do the torque boost but the pipes maybe not!

That's me. I'm OK rolling with a 6 cylinder, but I am under no illusions that a piped 6 banger sounds good. I'll keep mine quiet, thank you very much.

[RooVader]

Good point, I am probably mixing up payload with tow capacity as far as the wheels.

[Semperfi24]

It has been a while since I looked, but if I remember correctly, there is a decrease in payload as well as towing capacity when you go from 18" wheels to 20" wheels. I traded in my 2011 5.0 with 20" wheels for a 2013 EB with 18" and remember that increased payload/towing capacity being one of the benefits (comparing EBs with 20" versus EB with 18"). My assumption for that is simply because the larger wheels use the low profile tires. And the low profile tires cant handle the same weight as the regular tires. It made sense in my mind just based on the fact that bumps, rocks, road debris etc can all be felt more in a vehicle with low pro tires versus regular tires

But all of that very well could have simply been unrelated to the wheel size and more directly related to something else

[dustman_stx]

Originally Posted by Semperfi24

It has been a while since I looked, but if I remember correctly, there is a decrease in payload as well as towing capacity when you go from 18" wheels to 20" wheels. I traded in my 2011 5.0 with 20" wheels for a 2013 EB with 18" and remember that increased payload/towing capacity being one of the benefits (comparing EBs with 20" versus EB with 18"). My assumption for that is simply because the larger wheels use the low profile tires. And the low profile tires cant handle the same weight as the regular tires. It made sense in my mind just based on the fact that bumps, rocks, road debris etc can all be felt more in a vehicle with low pro tires versus regular tires

But all of that very well could have simply been unrelated to the wheel size and more directly related to something else

I looked through the 2013 towing guide and can't find anything listing a difference based upon wheels. I have the 145" 4x4 SCrew with EB and 3.55 gears- there is only 1 weight listed and it is 9600 max towing. If you google 2013 Ford towing guide you can find the doc. My mothers truck is identical to mine except I have the 302A whereas she has the 301A XLT package and she has 18's instead of 20's. Her listed payload is ~100lbs higher than mine. This seems to be about right for the additional wheel weight plus options such as sliding rear window on mine. I therefore don't see that there is any reduction in GVWR or towing capability.

[Semperfi24]

I don't think it is ground breaking to suggest that the weight rating of traditional truck tires with a normal sidewall is higher than a low pro tire with a smaller sidewall. Maybe I'm wrong, but that is all I was getting at. When I see 18 wheelers with low pro tires I might change my mind. More sidewall = higher weight rating. But I don't claim to be all knowing, just seems logical to me

[dbarr]

Dealer called this morning before 8 to let me know my VIN has been created and to expect mid April. Can't wait even after being a die hard diesel owner for the last 15 years.



Sent from space

[dustman_stx]

Originally Posted by Semperfi24

I don't think it is ground breaking to suggest that the weight rating of traditional truck tires with a normal sidewall is higher than a low pro tire with a smaller sidewall. Maybe I'm wrong, but that is all I was getting at. When I see 18 wheelers with low pro tires I might change my mind. More sidewall = higher weight rating. But I don't claim to be all knowing, just seems logical to me

Here are the load ratings for typical 18" and 20" tires. Keep in mind that P rated passenger tires have a 10% lower capacity than stated when used on trucks.

275/65-18

Load Range 113= 2282 (2535 x.9) Total= 9128 (4 tires @ 2282 each)
114 (stock Goodyear rating) 2341 (2601 x .9) Total = 9364
116 (some SL and XL) 2480 (2756 x .9) Total = 9920

275/55-20

Load Range 111 (SL rating, standard from factory) = 2163 (2403 x .9) Total= 8652
117 (XL load range) = 2550 (2833 x .9) Total = 10,200
115 (LT LRD tire, so no 10% reduction- what I run) = 2679 Total = 10716

Basically what I'm seeing is that stock tires in either 18" or 20" have a higher load rating than the trucks GVWR by a substantial margin, so I see no reason to believe they would need to downgrade the rating on a 20" wheel option truck. I also found it interesting that the SL load range has a higher rating on the 18" (113-116 versus 111) than the 20", but in the XL rating, the 20" has a higher carrying capacity (117 versus 116). Of course, you can step up to a load range E in either and have substantially more carrying capacity than the stock load range. I wanted to stay with stock size and went with LRD tires as LRE aren't available in 275/55-20, but have 10,716 total carrying capacity even with those.

[B and B]

I went with 285/55-20 for E rated. I also wanted some traction for snow. They are larger by amount a 1 inch. I was told the rims are capable by both dealer and tire dealer. He ran the same on his F 150. Next truck will be 18 inch wheels as I will want summer tow tires and winter snow tires. I can get a set of stock take offs tire and wheel for $1,000.

[Semperfi24]

Wish I could remember where I had gotten that info about 18 versus 20 with regard to payload. If I remember correctly it was approx 400lbs difference. But it may have been an apples to oranges comparison of it was using different load range for the 18 than for the 20. Interesting numbers regardless.

[dustman_stx]

Originally Posted by Semperfi24

Wish I could remember where I had gotten that info about 18 versus 20 with regard to payload. If I remember correctly it was approx 400lbs difference. But it may have been an apples to oranges comparison of it was using different load range for the 18 than for the 20. Interesting numbers regardless.

That is close to the difference you will see on a MaxTow versus non MaxTow. Maybe that is where the difference was and not because of the wheel/tire size???

[dustman_stx]

Originally Posted by B and B

I went with 285/55-20 for E rated. I also wanted some traction for snow. They are larger by amount a 1 inch. I was told the rims are capable by both dealer and tire dealer. He ran the same on his F 150. Next truck will be 18 inch wheels as I will want summer tow tires and winter snow tires. I can get a set of stock take offs tire and wheel for $1,000.

My plan exactly. I paid $1K for the 20's when I could have gotten a set of take offs with brand new tires on them for ~$1400 and had an extra set of wheels and tires to boot.