F350 V 10

[Diamondpilot]

Why would you be changing the plugs? All gas Fords have platinum plugs that are not scheduled to be changed until 100,000 miles along with most of the fluids. I know tons of guys who drive Fords, I am from a Ford Factory Town, and never heard of this. I am sure it happened to a few trucks and it hit the internet and got blown way out. Long gone is the day where we busted our knuckles ever year or 10,000 miles changing plugs and wires. Which brings up another point. I have never owned a V10 or taken a close look at but currently own 3 Diesel Fords and a 2007 F-150 5.4L and it has a coil on each plug. I believe the V10 does also and has for its entire life.

Chris

 

[patrick_g]

Why would you be changing the plugs?

Chris

Why put Nitrogen in your tires or a magnet around your fuel line or any number of things touted in advertisements or circulated like urban myths? Because people just do, not because there is good reason to do so. Ignorance and superstition is staging a comeback, a backlash against Science and engineering. Once the state of the art in engineering and manufacturing sufficiently exceeds the common person's understanding it just becomes so much magic and is indistinguishable from the magical claims made for various products.

Note: I didn't suggest anyone prematurely or unneccessarily change their plugs but if they do then a torque wrench might help avoid the problem of having the plugs come out. There are torque specs and too lose or too tight are both wrong.

If properly torqued plugs are popping out of their holes then there is an engineering problem and owners should hold FoMoCo's feet to the fire if the owners haven't changed the plugs themselves and maybe not got it right.

Pat

 

[rback33]

LOL Come on Pat... u know u put nitrogen in YOUR tires too! We know it's not pure nitrogen but 78% of it is. (by volume)

Sorry... I could not help myself. I really do agree with the post though.

 

[Bob_Young]

Hi unreconstructed,
Glad to hear the new V10 Ford's been working out for you. Been following your posts with interest. Since reading this thread, I've been playing with the "build your own" on the Ford site to get some idea of what a V10 F250 SD would cost. As a result, I've got a few questions for you:
1) Do you know what the rear axle ratio is in your truck? The choices for the F250 were 4.10 and 4.30. I was hoping for a 3.73 or 3.55...
2) What RPM do you turn in top gear when cruising at 55MPH?
3) Is your truck a Dually?

My application would be mostly sporadic towing; either boat (light) or 10K bumper-pull equipment trailer. I do my towing & truck work now with 2 trucks, both over 10 yrs. old; a 4WD F150 w/4.9L 6cyl. and a 2WD Cummins Dodge. Both are economical, run great, and are low mileage but would like to know where to jump if I have to.

Thanks in advance.
Bob Young

 

[Corm]

I have a 2000 F250 V10, manual shift, 4x4, 3.73 gears, long box, 73K miles. It is used as a tow vehicle primarily (30' 5th wheel camper, 18 foot utility trailer , 5x8 dump trailer). Empty I have gotten close to 15 mpg. Towing my camper to Gettysburg and back from Vt last summer I averaged an even 10 mpg, with a high of 11.5 on one tank. I had a transmission problem with it at 11k miles, replaced under warranty. No other problems at all. Been a real good truck.

Corm

 

[NoMo]

I'm lazy and haven't read all 7 pages of this thread so this may be already posted...

For the best info on Ford V10-powered pickups, vans and SUVs visit the forums at Ford Truck Enthusiasts and check out the V10 engine section.

I've owned 4 V10 Super Duty pickups and they've all been terrific; but the new 3 valve mated to the 5-speed auto is the best.

 

[twabscs]

NoMo is right. As I indicated earlier in this thread I purchased an 08 F250 4x4 CC Lariat with the V10 about three months ago. The Ford Truck Site is great for research. As for prices I have the X plan and paid around $38K for my truck (this includes X and the additional $3K incentive at the time). Of course, they had to drive 400 miles to get it (which I paid for), and I didn't have many choices other than looking at dealer websites to find the best set of options for me. Currently the truck as 3K miles on it and I'm very happy I traded in my 05 F250 oil burner.

 

[twabscs]

1) Do you know what the rear axle ratio is in your truck? The choices for the F250 were 4.10 and 4.30. I was hoping for a 3.73 or 3.55...
2) What RPM do you turn in top gear when cruising at 55MPH?
3) Is your truck a Dually?

1) I have the 4.10. Also, IF V10, Only the 4.10 and 4.30 are available in the 2008.
2) It would be around 1700 RPMs. I know 75 MPH is around 2250 or so.
3) Mine isn't

See previous post for pricing on my truck.

 

[Diamondpilot]

I would not hesitate to get a 4.10 or even the 4.30 geared truck. I was schooled a few months ago on rear end gears and tire size. I ran into a guy with the 2008 F-450 and I made a comment on how it only came with low gear ratios, something in the 4.30-5.30 range or something like that. I told him I had 3 Diesel Fords and had 3.73's in all them. He then explained that 3.73's are not 3.73's. Tire size has a lot to do with it. Take my 2006 F-350 PS for example with 275/70-18 and the 2005 GM 3500 DM with 265/75-16 I traded for it. The GM's tires and wheels are much smaller. Using a simple calculator I figured the rolling diameter of the Fords tire is 105" and the GM's is 99" It would take the Ford's 627 revs per mile and the GM would need 658 revs per mile or about 5% more. So what I am getting at is the day of when our dad said get 3.55 for good millage, 3.73 for ok millage and some towing, and get 4.10 for pulling tree stumps all day long. With all the new tire sizes now compared to when everyone had basically the same size on 15" wheels this goes out the door and the manufactures can do about anything to the final drive.

Chris

 

[patrick_g]

Excellent point, Chris.

I have always been most interested in the RPM to MPH ratio. How you get what you got is not nearly as important as what you get. Tire manufacturers (among other data) give revs/mile figures, vehicle manufacturers give differential ratios (turns on the drive shaft per axle turn) but it has been a while since these figures were simple to use for comparison.

Typical transmissions, auto or manual, now often have a top gear which is greater than 1:1 (over drive.) What really matters is what MPH is the vehicle going with the engine turning xxxx RPM, where does xxxx RPM fit in your HP/Torque/efficiency curves, and does the trans offer a sufficient number of gears with properly spaced overlap to bridge between your engine characteristics and your usage.

Of course this is a tad more complicated to consider than just buying 4.10 to tow and 3.56 for ... etc.

My Jeep had 5.38 and my Tiger had 2.88 diff and both did what I wanted.

Pat