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Old 03-22-2014, 07:19 AM   #15
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The new trannys make a big dif in towing. Jim
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Old 03-23-2014, 01:01 AM   #16
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Just sitting back and observing where this thread eventually goes...
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Old 03-23-2014, 02:32 AM   #17
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Two trips and he is back to towing with his 2004 3/4 ton GMC.

The Ford is a nice truck, but a turbo charger does not a V8 make.

But advertising tries.
Just based on advertised specs, the 3.5 Ecoboost has more power and torque than the 2004 GM 6 litre V8. It has more power than the 8.1 litre V8 from the same era, with slightly less torque but with the torque peak at a lower rpm. It has more power than the 6.6 Duramax, but significantly less torque than the diesel.

I don't think it is over advertised. It would be interesting to know if your friend traded back to a diesel, and if there were reasons other than horsepower. Nothing wrong with the GM pickup, but it seems a bit of a stretch to call the Ecoboost power figures advertising hype, unless you have dyno figures.

If you don't believe the Ford figures per SAE J1349, there are independent dyno tests on the net showing the 3.5 Ecoboost and the 5.0 Ford V8 in the same truck platform, tested back to back. The V6 comes out ahead of the V8, not surprisingly.

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Old 03-23-2014, 05:17 AM   #18
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I have both

Towing an '82 34 Limited with a '13 F150 Ecoboost SCrew.

Very happy with the combination. We towed our previous trailer (31') through Vermont this summer and it had plenty of power. Not the rockies but there were some mountains. The '34 is heavier but I would have to say that it tows better than the 31' did.

I do not have the Max Tow package which suits me fine - if I had a newer trailer I would likely have payload trouble but it works with this combo. There's a bit of a hit with fuel economy with the axle change in the Max Tow so I'm happy to not have it the rest of the time when I'm not towing.

Prior to this truck I had one with the 5.0 litre V8 and really liked it. I think Ford is manipulating their tow ratings to force people into the Ecoboost - the specs are close between the two engines but the tow ratings differ vastly unless you get the 3.73 axle. The 3.55 Ecoboost is rated considerably higher than the 3.55 5.0 litre.
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Old 03-23-2014, 05:19 AM   #19
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I should add that I also towed my 31' with a F250 diesel (albeit a low mileage 1994). Either of the new F150s were vastly better than it was.
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Old 03-23-2014, 06:57 AM   #20
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Prior to this truck I had one with the 5.0 litre V8 and really liked it. I think Ford is manipulating their tow ratings to force people into the Ecoboost.
EcoBoost acts more like a diesel with the torque coming on at low rpms and is flat where that V-8 has a shallow torque curve with max torque at a higher rpm and narrower rpm range.

It's more than max torque and hp, it's the useable torque & hp and at what rpm range.

Example - better to have 400lbs torque from 1200rpm to 3500rpm then 430lbs torque from 2800rpm to 3500rpm....
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Old 03-23-2014, 07:53 PM   #21
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Since your original post asked about the 150/34' combo, we have been happily towing our 34' with a 2009 F150 5.4L V8. I have been very happy with the combo. Initially I had a Reese type hitch and wasn't so happy. When I added a ProPride hitch to the combination it became a very comfortable package.
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Old 03-23-2014, 09:34 PM   #22
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Towing a 34ft with an F-150

I'm curious, how would a 2008 f250, 5.4L gas, do with towing a 1970 29' ambassador?
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Old 03-23-2014, 09:40 PM   #23
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to ron h: i like my combination. the issue will be payload but if you build it light you'll end up with about 1800 lbs. of payload. it works for me because i ride solo and all i have in the bed are my hoses.
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Old 03-23-2014, 09:50 PM   #24
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Didn't I read somewhere that the max payload for the new 150s is about 3400lbs?
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Old 03-23-2014, 10:17 PM   #25
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that might be with the longest wheel base.
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Old 03-24-2014, 12:32 PM   #26
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I'm curious, how would a 2008 f250, 5.4L gas, do with towing a 1970 29' ambassador?
It would do fine. I would be sure of having both a WD hitch as well as the anti-sway component, though.
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Old 03-24-2014, 04:18 PM   #27
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Didn't I read somewhere that the max payload for the new 150s is about 3400lbs?
Yes - you would have read wrong as those are more akin to Heavy Duty \ Super Duty numbers.

Custom ordered Stripped down, 2 wheel drive with 2 doors and short wheel base and max payload package = 2,800 tops....
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Old 03-24-2014, 04:32 PM   #28
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there's a couple with over 3000 lbs payload
Regular Cab 4x2 145" 5.0L V8 8200‡ 3120
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