12v versus 99'powerstroke

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This is what I have seen driving 2 99' F-450 PS/6spds. THEY SUCK.
1 truck gets just over 8 MPG pulling a 36' G/N. Other truck is in the 7MPG range. the 7 mpg truck has 70k miles, has had a turbo and clutch replaced,now the PS has a "miss" in it. The ABS light stays on, the interior light and door "dinger" stays on most of the time. Actually both trucks have the int. light and "dinger" problem. The 8 mpg truck has 30k on it and the throwout bearing is making alot racket. The heaviest load to date that I have hauled on either truck is in the 10,000lb range. I have been trying different shift points and running on the hwy @ 65 with cruise on and still cant break out of 8mpg.
It appears there is no power difference, I believe the PS boys on the Ford site full of it. The only time my 97' EVER dropped below 10mpg was on a 13' wide 17' tall load. I truly am disappointed in these truck's, I thought Ford PS were atleast in the same ballpark as the Cummins. Perhaps 230,000 miles in my 97' Dodge spoiled me.


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SOLD but still in the family:
97 Dodge cab/chassis 1 ton,Allison at 545 4spd auto, Brown-Lipe 3spd auxillary, 3. 55's,11'flatbed , bd injectors, K&N filter,Cobra 29 CB, Wilson 2000, electcric & V/H brakes, 50 gal. aux tank, pulling 40' G/N and 20' 12 k cap tag-along flatbed trailer,
225,000 miles and counting

[This message has been edited by LARGE CAR (edited 09-16-2000). ]

 

[Archive]

With the F*** having 2 more cylinders, the little 5. 9L Cummins should not be able the stay with it or pull with it.

It does and will. That says something about Both engines.

Need I say more? #ad


[This message has been edited by HEMI®Dart (edited 09-16-2000). ]

 

[Archive]

What gears are in the 450s that makes a big differnce? I have a 99 F350 whith auto and 4. 10s and I get about 13-16 unloaded but it's no comparison to my 12V that gets 20-22 #ad
All the 450s & 550s I have driven get realy bad mileage and don't run any better than my 350

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'95 2500 4X4 excab 12V 5spd Strait pipe,K&N

[This message has been edited by cutter1 (edited 09-16-2000). ]

 

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Personally, I think One mile in any year Cummins powered Dodge would spoil you #ad
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96 2500 4x4 5spd 3. 54 grs,#10 TST plate,AFC spring kit,16 cm turbo,CUSTOM 4" exhaust, (turbo to tail),K&N RE-0880 filter,TST guages,370HP injectors,3800 rpm governor spring kit, Mcleod dual disc clutch(street),305/70r16 Goodyear Wrangler MT tires

 

[Archive]

I am not sure what the gears in the rear are. At 70 mph they are turning 2600rpm. I have been trying to convince the guy I work for to buy Cummins power. That kind MPG is hard to swallow, glad I dont pay for the fuel.
We just swapped gears in the 97' Dodge from 4. 10's to 3. 55's, That little truck will STROLL down the highway now. Shift the "brownie" into OD at about 75mph now #ad
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I think the 450's gear is a 4. 88 or 5. 16,if I have time and don't forget tonight while at KTP I will take a look and see.

 

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Couldn't make up my mind because in talking to Powerstoked Fords they would tell me there the best. Talk to Dodge cummings people they say there the best. What really did it was going down the highway are rigs, big rigs and the majority are 6 cylinders all lined up single file turning about 1800 rpms day & night, rain or shine, year in and year out. So happy I got the Dodge Cumming. Stephen in Sanger, CA.

 

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If the boss is strictly Ford man why not go up a few weight classes where you can get Cummins as option, or any bigger truck with Cummins as option.
Best idea would be buy a Dodge/Cummins beef up all the weak points on it and put it to work.
Owner of large trucking company feels if he can get one more mile per gallon out of truck he saves $100,000 a year on fuel for that truck.

 

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Well Large Car, Ive been preaching this for a while now: V8's dont work in diesel application! Horsepower is irrellevant. Torque is what moves the load, and a straight-6 design makes torque... take your boss to lunch down at the local truck stop, and watch the boys tilt hoods. All 6's, and the yellow ones are always broken!

 

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i just dont know. detroit makes a pretty good v8..... a little noisey a little bit of oil leaks out but other than that not real bad... . not as good as a cummins but not bad.

 

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I agree BCFAST, a straight 6 is more efficient and durable than a v-8. One truckin out fit I drove for had a V-8 Mack in their fleet. Reliability was not even a factor in that truck. It spent more time in shop than on the road. I have been hooked on straight 6's since before I started driving trucks. Have had 2 ford 300 6 bangers go well into the 200k range and a Dodge slant 6 into the 300 k range before I got rid of them.
I do know that the 97' Cummins I sold, was for more efficient in power and fuel mileage than these 2 PSD I am driving now.

 

[Archive]

Originally posted by LARGE CAR:
I agree BCFAST, a straight 6 is more efficient and durable than a v-8. One truckin out fit I drove for had a V-8 Mack in their fleet. Reliability was not even a factor in that truck. It spent more time in shop than on the road. I have been hooked on straight 6's since before I started driving trucks. Have had 2 ford 300 6 bangers go well into the 200k range and a Dodge slant 6 into the 300 k range before I got rid of them.
I do know that the 97' Cummins I sold, was for more efficient in power and fuel mileage than these 2 PSD I am driving now.

LARGE CAR OPEN THE DOOR ON THE FORDS AND SPRAY SOME LUBE SPRAY LIKE WD-40 into the
latch. This should make the lights & bells
shut off this trick worked for me.
I drive these jokes at work also.