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Author Topic: RV - 3/4 or 1-ton?  (Read 8557 times)

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Offline Rollingrock

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Re: RV - 3/4 or 1-ton?
« Reply #15 on: December 27, 2014, 02:13:42 PM »
Tony another point, there is no difference in engine strategy in a 3/4 vs a 1 ton.   If you went to a 450 Ford does change the strategy a tad on the higher side along with longer front axles and beefed up rear end.

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Offline Kitzy

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Re: RV - 3/4 or 1-ton?
« Reply #16 on: December 27, 2014, 02:28:43 PM »
Ok, gonna derail this thread for a second.  What's the deal with the 450s and 550s being underpowered compared to their lesser siblings?

Tapatalkin...

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Offline GreyMichFX4

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Re: RV - 3/4 or 1-ton?
« Reply #17 on: December 27, 2014, 04:19:29 PM »
Just FYI in some states you need a Class A CDL to tow a trailer with a F450/550 because of the gvcw. As far as them being underpowered they just plain heavy I think our old 2wd F550 with a 7.3 weighed in at 10,000lb with a 12ft dump bed on it.
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Offline Kitzy

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Re: RV - 3/4 or 1-ton?
« Reply #18 on: December 27, 2014, 04:48:01 PM »
Quote from: GreyMichFX4 on December 27, 2014, 04:19:29 PM
Just FYI in some states you need a Class A CDL to tow a trailer with a F450/550 because of the gvcw. As far as them being underpowered they just plain heavy I think our old 2wd F550 with a 7.3 weighed in at 10,000lb with a 12ft dump bed on it.


While at the dealer I was flipping through the chassis cab book and the specs for the 450 and 550 were significantly lower than the 250 and 350 as far as power.  I'll see if I can find the numbers.



Edit:
Maybe it's just the chassis cabs as the pick ups came back with the usual numbers when I googled but the chassis cabs I found this... http://m.ford.com/commercial-trucks/chassis-cab/trim/details/equipment.html/f550xl/_stdpart_37172 For those who don't feel like looking, it has the 550 rated at 300hp and 660lbft.
« Last Edit: December 27, 2014, 04:53:18 PM by Kitzy »
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Offline GreyMichFX4

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Re: RV - 3/4 or 1-ton?
« Reply #19 on: December 27, 2014, 05:53:40 PM »
Mike, the only reason I can think of is because it's a commercial vehicle. Other than that I don't have a clue.
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Offline Kitzy

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Re: RV - 3/4 or 1-ton?
« Reply #20 on: December 27, 2014, 05:56:11 PM »
Yeah huge difference.  Especially on the torque end.  If I had a commercial truck I would want that power back.  I wonder if it's something that is tuneable. I remember when the corvette zr1and Caddy ctsv shared a motor, a big part of the power difference was tuning.

Tapatalkin...

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Offline GreyMichFX4

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Re: RV - 3/4 or 1-ton?
« Reply #21 on: December 27, 2014, 06:47:30 PM »
Cummins, Detroit, and International have specific tuning for ambulances and fire trucks so I'm sure there is some room to play. I'm glad our trucks are tuned the way they are I can't imagine what the repair bills would be like if our trucks were tuned to put out more horsepower.
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