Ask the engineer for the new 6.2l gas engine!
Junior User
Joined: Feb 2010
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Someone asked earlier if there are power opportunities with a less restrictive exhaust. The answer is yes, but of course the trade off is loudness. You might pick up 10 hp with much lower restriction aftermarket system (although I'm sure the people marketing such a system would claim much more)
Mike.
Junior User
Joined: Feb 2010
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The Superduty version is SAE rated on 87 octane (R+M/2) so it is directly comparable to the 401 hp for the raptor. You will pick up power on the 6.2L Superduty with 91 (R+M/2).
Mike.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
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From: Long Island USA
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 422
From: Long Island USA
Yes, it has, but I wanted to point out that using higher octane yields more power with the 6.2L
In the past, most of Ford's modulars don't get anything from running on anything above 87 octane. Can't speak to the DOHC stuff though.
For instance, my V10 has a knock sensor, and I know it works very well, having played with tunes and a datalogger.
But in stock trim, it will not benefit from higher than 87 octane unless something is wrong.
In the past, most of Ford's modulars don't get anything from running on anything above 87 octane. Can't speak to the DOHC stuff though.
For instance, my V10 has a knock sensor, and I know it works very well, having played with tunes and a datalogger.
But in stock trim, it will not benefit from higher than 87 octane unless something is wrong.
Elder User
Joined: Feb 2006
Posts: 803
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Thx.
OK is this how it looks then? I'm curious:
SD 6.2L 87 octane: 385 hp
SD 6.2L 91 octane: 401 hp
Rptr 6.2L 87 octane: 401 hp
Rptr 6.2L 91 octane: 411 hp
OR did I miss something in there and they are the same, its just the SD 6.2L is rated differently as prev discussed due to it being over 8,500 gvw?
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FTE Leadership Emeritus
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From: Melbourne, Aus
I would be guessing it would be about 395 with 91 in the Super Duty 
Mike mentioned previously there is a difference with the Cam in the Superduty to the Raptor which accounts for its power difference. (It might have a different calibration too)
Mike mentioned previously there is a difference with the Cam in the Superduty to the Raptor which accounts for its power difference. (It might have a different calibration too)
Senior User
Joined: Aug 2009
Posts: 434
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From: Ontario, Canada
Forgive me if this has already been addressed, but are there any immediate, or distant plans in the future of branching this engine into any other Ford Vehicles besides the truck line up?
The Mustang guys over at StangNet | Ford Mustang Blog & Forums are already salivating at the idea of another limited production Cobra R with some version of the new 6.2L under the hood (as if the release of the new 5.0L Ti VCT wasn't enough to wet the whistle )?
I realize "anything is possible" will probably be the standardized response for the time being, but has a Mustang even got enough real estate under the hood to make an engine choice like this even happen? How does the new 6.2L stack up outer dimension wise to the current 5.4L DOHC available in the Mustang? Width, height, weight?
The Mustang guys over at StangNet | Ford Mustang Blog & Forums are already salivating at the idea of another limited production Cobra R with some version of the new 6.2L under the hood (as if the release of the new 5.0L Ti VCT wasn't enough to wet the whistle
)?I realize "anything is possible" will probably be the standardized response for the time being, but has a Mustang even got enough real estate under the hood to make an engine choice like this even happen? How does the new 6.2L stack up outer dimension wise to the current 5.4L DOHC available in the Mustang? Width, height, weight?
Cross-Country
Joined: Jul 2006
Posts: 60
Likes: 0
Question for 6.2 engineer:
3.73 or 4.30 gears?
What gear would you suggest for a crew cab dually 4x4 6.2 that will be used empty 70% of the time. The other 30% loaded with a 3900 lb (loaded) Lance truck camper while towing a 3500 lb trailer at the same time. Mostly on flat land but in the mountains about once a year. I had a truck that would go in and out of overdrive constantly and I want to avoid that even if I loose a little MPG.
3.73 or 4.30 gears?
What gear would you suggest for a crew cab dually 4x4 6.2 that will be used empty 70% of the time. The other 30% loaded with a 3900 lb (loaded) Lance truck camper while towing a 3500 lb trailer at the same time. Mostly on flat land but in the mountains about once a year. I had a truck that would go in and out of overdrive constantly and I want to avoid that even if I loose a little MPG.
Tuned
Joined: Apr 2010
Posts: 255
Likes: 2
I'm not the engineer here but for that use I'd recommend the 4.30 gears. To make any power you need to rev that new gas engine so I'd go as low as you can.
Remember, when dealing with a slide-in truck camper it's not just about the weight, it's about the wind resistance at speed. You need a fair amount of horsepower, not torque, to maintain 70 MPH with a billboard on your truck.
Joe
Remember, when dealing with a slide-in truck camper it's not just about the weight, it's about the wind resistance at speed. You need a fair amount of horsepower, not torque, to maintain 70 MPH with a billboard on your truck.
Joe
Junior User
Joined: Feb 2010
Posts: 84
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Question for 6.2 engineer:
3.73 or 4.30 gears?
What gear would you suggest for a crew cab dually 4x4 6.2 that will be used empty 70% of the time. The other 30% loaded with a 3900 lb (loaded) Lance truck camper while towing a 3500 lb trailer at the same time. Mostly on flat land but in the mountains about once a year. I had a truck that would go in and out of overdrive constantly and I want to avoid that even if I loose a little MPG.
3.73 or 4.30 gears?
What gear would you suggest for a crew cab dually 4x4 6.2 that will be used empty 70% of the time. The other 30% loaded with a 3900 lb (loaded) Lance truck camper while towing a 3500 lb trailer at the same time. Mostly on flat land but in the mountains about once a year. I had a truck that would go in and out of overdrive constantly and I want to avoid that even if I loose a little MPG.
Probably the 4.30 gear, if you use your camper as much as 30% of the time.
I hope you like the new truck.
Mike.
Senior User
Joined: Mar 2010
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Hey Mike, thanks for talking with us, I have been reading that people are getting better mileage with the 4.30 gears on the highway. And only marginally better mileage in town with 3.73 gears. Any thoughts about this? My real question I guess is there any real advantage to the 3.73's?