Spy Shots: New Ford-developed Scorpion heavy duty diesel V8
Late last year, Ford shelved plans to introduce a new 4.4-liter diesel V8 into its light duty F150 pickup trucks and full-size Expedition SUV. Ford has apparently continued to work on a larger diesel V8 that it has developed to replace the troublesome 6.4-liter Power-Stroke in its Super-Duty trucks. The Power-Stroke is supplied to Ford by Navistar and has caused the automaker no end of grief, in spite of its good performance. The new 6.7-liter Scorpion has been spotted being tested in a prototype Super Duty pickup and reportedly incorporates some of the same ideas in the recently-shelved General Motors 4.5-liter Duramax diesel. Like the Duramax, the Scorpion uses a reverse flow layout for intake and exhaust. A pair of turbochargers lie in the valley of the V8 where they are fed by very short exhaust manifolds coming from the inboard side of the heads. This has multiple advantages. The short exhaust runs mean better response and reduced turbo lag as well as more energy available to drive the turbos since the exhaust doesn't cool. The intakes are on the outboard side of the heads although its not clear if they feed through the top like the GM engine or from the outside.
According to PickupTrucks.com, the new engine should yield more power than than the Navistar engine as well as a 3 mpg improvement in efficiency. In the big trucks, where mileage ratings are often in the single digits, that's a significant jump.
[Source: PickupTrucks.com]
Reader Comments (Page 1 of 1)
Rain 12:16PM (3/14/2009)
Maybe Ford should talk Cummins into letting them put the F-750 engine into the the light duty so called Super Duty.
The reasons are all too obvious and practical,if Ford had to pay extra for the privilege then they
would still come out way ahead from not trying to redesign a V-8.
Yes,a V-8,V-10 configuration is quieter and smoother than an inline,but that is what a Diesel
engine prefers and is more efficient.
Diesel truck owners prefer a hairy knuckled beast rather than a dowdy poltroon.
Or why buy a light duty truck that comports itself as Super Duty?
Don't get Me wrong,I am in awe of the fit and finish and the strength of the chassis that have been engineered into the truck,but that engine,just,damn!
I know from experience that waxing a unladen Powerstroke v-10 at a stoplight with a classic Chevy on a toy hauler behind a stock Dodge CTD gives much satisfaction,especially considering that the Ford guy had to pay $10,000 more for the blue oval on the hood.
C,Mon!
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Jaeger 9:11AM (5/27/2009)
If you "waxed" a V10 powerstroke you have pulled off quite the coup. Ford does not make a V10 powerstroke. It only comes in V8. All Ford V10's are gasoline fueled.
jharlan 1:32PM (3/14/2009)
History tells us that we won't know how good the new Ford diesels are until they have a couple of hundred thousand miles on them. The 7.3 L Powerstroke engines are still serving well with 400K miles on them. I have heard the 6.0 L replacement proved to be troublesome @ around 110K miles.
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crane trucks 9:40AM (3/28/2009)
It is great that people are thinking about the environment and working to make the world a safer place. Not only the materials that you are using on your home are safe for the environment but dump trucks have come a long way since the earlier models. We are learning and expanding and coming up with a wide range of safer more effective vehicles for the work force. I think it is great that many auto manufacturers are turning to hybrid vehicles to protect the environment and now they are even using hybrid dump trucks.
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blksn8k 3:50PM (4/05/2009)
Rain, if you know so much about Ford's diesel engines then why are you referring to the Power Stroke as a V-10? Maybe what you were up against in your might Dog was a 6.8L gas V-10? Did it happen to say "Triton V-10" on the fenders? Hmmm? It really doesn't matter though since it won't be too long before the trucks with the Cummins inline 6 will soon say FIAT on the side and the Super Duty Ford will be soldiering on with the new Scorpion 6.7L which is designed and built by Ford in their own plants.
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Racinghcr 9:42PM (4/07/2009)
Rain is really lost----Bring your Nip-made Got Mechanic Coming (GMC) over to my area and I'll blow it in the ditch with my 7.3 F-350 !! Get your facts straight before you look stupid --again!!
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nate 4:15PM (5/02/2009)
FORD OWNS CUMMINS go to the cummins website. it says ford cummins. they have a contract with dodge. ford sells alot of trucks and makes money on mass production motors for dodge. It would be cool but money talks.
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Sam Abuelsamid 4:20PM (5/02/2009)
Cummins is an independent publicly traded company. It is not owned by Ford.
COLSCOMMERCIAL 2:04PM (6/29/2009)
FORD listen up ,,, there has never been and doubtfull that there ever will be a good v-8 diesel engine look back ,, 8V92, V903,the 3208 the 6v92 the 6.9 ,7.3, and the 6.0-6.4 disaster and accourse GM's small blockV-8s all of these engines were short lived , costly to own , , please take a hard look at any INLINE diesel . Your truck cab chassis are second to none ,, please take the time to make the right move your future in light duty diesel trucks depends on it !
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Ellis Gregory 8:57PM (7/14/2009)
In my opinion the 3.9 cummins 4cyl would be just fine in a F250 or F350 if everyone didn`t feel the need to race from one red light to the other.For fun go checkout the Ford Brazil web site for the engines Ford uses.Transit connect uses the 2.4 litre durotorq diesel,F-250,F-350,and the 4000 series all use the 3.9 Cummins.The larger Ford Cargo trucks use both a 6.0 and 8.3 Cummins.I did not see any mention of any gas engines although I can`t really read thier language.As far as Ford owning Cummins back in the nineties Ford bought either 10 or 25 percent of Cummins stock to prevent a hostile take over of Cummins.I don`t know if Ford still owns any stock or not.I really wish we could get what Brazil gets also the cars that Australia gets The Falcon (RWD and V8 power)
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pat 4:45AM (9/27/2009)
Ford don't own Cummins they had controlling stock at one time because they loaned money to Cummins. But you can get a Cummins in Ford but not in North America and Canada
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