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Old 04-12-2015, 06:44 PM   #1
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Heaviest load in a V8 Smb

I am looking at several boats and am wondering, what's the heaviest load you have hauled? I might need to start looking at selling the SMB due to weight requirements.
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Old 04-12-2015, 07:02 PM   #2
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Re: Heaviest load in a V8 Smb

Are you talking about a gasser V8?

If not, I towed ~7000lb with my 6.0L.

Carringb is off the charts, but he's running a V10.


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Old 04-12-2015, 07:11 PM   #3
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Re: Heaviest load in a V8 Smb

Yeah, which V8? My 460 is probably rated for about 10k. I'm assuming you mean the 5.4 but if it's an e350 chassis I think it's 7 or 8k.

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Old 04-12-2015, 08:00 PM   #4
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Re: Heaviest load in a V8 Smb

V8 - E350
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Old 04-12-2015, 08:01 PM   #5
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Re: Heaviest load in a V8 Smb

I am looking at three boats, two of which top out 8-10k. Only one is 5k....
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Old 04-12-2015, 08:08 PM   #6
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Re: Heaviest load in a V8 Smb

I had a late 90's SMB, E-250HD with the 5.4 V8. Fully loaded the van was at around 7,600#. My trailer weighed between 4,500# and 5,000# with around 350# of tongue weight (tandem) for a GCVW of around 13,000#. I towed around 30,000 miles with this setup, including over a number of large passes (Homestake, Siskiyou, Tehachapi, etc. Zero problems and I ran a Scangauge so I could keep an eye on things. SMB is still going strong (new owner) with 150k on the clock.

I got around 12 mpg towing, and around 17mpg (highway) with just the loaded van.

I did sometimes keep it out of overdrive when towing - just depending on the terrain.

Transmission would be at around 180º or so at the top of a pass; coolant around 206º (which is what it was always at, towing or not).

I never felt a lack of power, but then I don't expect to roar over a pass, towing, at 60mph. If you do, you might find it lacking (not sure, as I never pushed it that hard).

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PS: I don't know what your GVWR, GCWR, and GAWR-rear are, but with the full meal deal above, I was close to maxing out on all ratings (GVWR, GCWR, GAWR). Maybe you'll be fine with the E-350, but you'd need a LOT more capacity than I had with the E-250HD. I don't know whether my van would have physically pulled a 10,000# trailer, but I would have been WAY over capacity on all ratings.
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Old 04-12-2015, 08:30 PM   #7
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Re: Heaviest load in a V8 Smb

Yeah - I think a crew cab chev duramax is in my future. I love Fords - have owned many in my days but with all the problems the 6.0 has I think I'll pass and pick up a Chev or Megacab Dodge.
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Old 04-13-2015, 06:34 AM   #8
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Re: Heaviest load in a V8 Smb

Quote:
Originally Posted by bshillam
Yeah - I think a crew cab chev duramax is in my future. I love Fords - have owned many in my days but with all the problems the 6.0 has I think I'll pass and pick up a Chev or Megacab Dodge.
My 2012 Ram 3500 Laramie Crew dually longbed 4x4 cummins 6.7 auto diesel is amazing!

Had a 2011 Silverado 6.7 V8 diesel, nice and a 2002 Ford 7.3, also nice, but Cummins Ram
is awesome. Quiet, solid, roomy, capable. Have 4.1 rear diff, not 3.73, get about 12-14 miles per gallon with a Big Truck Camper & Trailer.
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Old 05-06-2015, 08:01 AM   #9
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Re: Heaviest load in a V8 Smb

It depends quite a bit on where you are and what you're towing over...! If you're going over passes of course it's a different world...

If you're working with boats, concentrate on wheelbase - first... It helps at the docks, and the sway that comes with a lower-density cargo. It doesn't matter how big that engine is, or how solid the frame is, if you're spun around, or your wheels start slipping at the ramp! Good luck!
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Old 05-06-2015, 11:01 AM   #10
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Re: Heaviest load in a V8 Smb

I tow our travel trailer a few times a year 500-1000 miles at a time with a GCW of ~14,500lbs and it does just fine even over long grades with 5.4L, 34" tires and 4.56 gears. About a month ago I hauled a CAT 259 skidsteer (track loader) on a steel equipment trailer which brought my combined weight to ~18,000lbs and it definitely let you know it was back there! In all reality, the skidsteer put me over the legal limit for towing a tag trailer on a class C license in CA (you are allowed 26,000lbs combined, with no more than 10,000lbs of that being a tag trailer), so anything that I could legally tow is not a problem with the 5.4L.
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