was gonna order 2012 350 ext cargo van with v-10-4:10s, would the engine be a significant improvement with the added weight of it being an ext.model, over my 250 with 5.4-3.73 -custom tuned, x-piped custom 2.25" ss dual exhaust, ud pullies, intake?thks phil

 

I believe in "no replacement for displacement"...
But what are you going to be using the van for?

 

hvac company owner,also to pull my 7x14 mx trailer on weekends~4500lbs, so did the tune on your v-10 really wake it up?

 

Dbasso is about to say "no comparison". I agree, no comparison. The v10 is much stronger, only gets 3-4 less mpg. There is no replacement for displacement. i have the 5.4 and sure wish i had the v10 but mine is a daily driver, so no v10 feeding for me.

 

V10 vs V8:
25% more displacement, H.P. and Torque.

25% worse fuel economy.

Equal fuel economy when towing, but far more capable.

V10's like RPMs and make peak torque at something like 4500, do you might consider 4.56's.

 

First, you can't get 4.56 ratio. Second, that's going to get you well down around 6-9 MPG. Why would you want to do that? My '02 V10 extended E350 pulled my 9100 pound trainer just fine. It had a 3.73 axle. That's plenty of axle.

If you don't plan to race with a loaded van I would recommend the 5.4L to save gas money. It's not as fast, but the extended van is not much heavier than a standard length. When running a business saving gas money can be important.

 

HAHA, my 5.4 gets bad enough, no way I'd get a V-10, if you have money running out of your ears to pay for increased gas usage buy a diesel Chevy van, that's right, I said GM! The V-10's have a 5 speed trans, giving them the lower first gear, same final drive ratio, the lowest you'd want is 3.73's on one.
BTW my van is a 15 passenger 99 E-350 with over 1000 pounds of equipment to make it wheelchair accessible, Flowmaster 40 exhaust, an SCT, and intake modification. I live in Tennessee and spent a few years running back and fourth across the mountains hauling trailers, one being a heavy car trailer with a 96 convertible Mustang on it, in amazement it was doing 70 with enough power to go faster up a steep incline after a rest stop.
I believe the vacuum leak that's messing with my heat/AC is further ruining my mileage but at 150,000 miles who can complain about repairs when I've had nothing major.

 

thks guys,appreciate input

 

Yes, woke it up big time. Especially when towing.

But I tow a 7500lb TT frequently...

For your use I would think the 5.4 is fine.

 

As for MPGs in a V10, read: https://www.ford-trucks.com/forums/1...ort-trips.html

 

I've never had an issue of lacking power

 

my van is fully loaded,near 9k lbs:-

 

Just curious, do you mean 3500lb of gear IN the van or is part of that load on a trailer? I think our vans are about 5500-6000lb unloaded.

 

The scale said my 15 passenger weighed 8000 pounds with my stereo and handicap conversion, plus me sitting in the front seat.
I pulled my loaded 22' pontoon, 14' dual axle trailer with 2 4 wheelers and gear, 200 miles to east TN to ride on regular basis, the boat was on it 4 times a week, I had to pull it up a drainage ditch at home to get it out too. I've never needed more power than the 99 5.4 provided, never had trouble towing anything the speedlimit on the interstate, even on Rockwood Mountain.

 

yes that is weight of van-my other 10 vans are 01-2011 e350s with 5.4's,my 04 with 350k is getting tired from being run hard,figured since i'm the owner, id treat myself to a v10