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Old 09-24-2008, 09:15 AM   #1 (permalink)
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6.7 liter scorpion

I read in a four wheeler magazine about the 6.7 that ford is coming out with, they said it will have 390 hp and 720 lb ft of torque, what does Ford need to do to compete with the cummins and Duramax trucks in drags and pulls? What has the power stroke been missing? I thought it was just the grunt of an I6 that the V8 PS couldn't compete with but the d-max seems to be doing just fine, in fact they seem to be beating the cummins' at a lot of events. Does anyone have any information about weather or not the 6.7 will be tuneable enough to compete? I'm sure Ford will make it difficult at first but the PS engines just don't seem to cut it no matter what you do to em.
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Old 09-24-2008, 10:17 AM   #2 (permalink)
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I'm not a high HP guy. But seems to me, you need a motor with a stout bottom end and a fuel system that will flow enough... cheaply.

Then be able to keep the heads on it with excessive boost.

But then again what do I know
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Old 09-24-2008, 01:11 PM   #3 (permalink)
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Originally Posted by lari2001 View Post
I read in a four wheeler magazine about the 6.7 that ford is coming out with, they said it will have 390 hp and 720 lb ft of torque, what does Ford need to do to compete with the cummins and Duramax trucks in drags and pulls? What has the power stroke been missing? I thought it was just the grunt of an I6 that the V8 PS couldn't compete with but the d-max seems to be doing just fine, in fact they seem to be beating the cummins' at a lot of events. Does anyone have any information about weather or not the 6.7 will be tuneable enough to compete? I'm sure Ford will make it difficult at first but the PS engines just don't seem to cut it no matter what you do to em.
it is the fuel system on the colder PSD's. the HEUI system just isnt designed to push big power. Not cheap, that is for sure.
Apparently you havent paid attention to the 6.4L at all. It is easily making 500hp with tuning and exhaust, and almost 700 with nitrous and injectors, all on a stock bottom end and tranny
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Old 09-24-2008, 01:20 PM   #4 (permalink)
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I also read somewhere that there are people pushing 53 lbs of boost on the 6.4 and not blowing the head gaskets.
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Old 09-24-2008, 03:12 PM   #5 (permalink)
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it is the fuel system on the colder PSD's. the HEUI system just isnt designed to push big power. Not cheap, that is for sure.
Apparently you havent paid attention to the 6.4L at all. It is easily making 500hp with tuning and exhaust, and almost 700 with nitrous and injectors, all on a stock bottom end and tranny

Oh I've been paying attention and those power numbers you gave are accurate and all that but it still falls well short of the other two makes, pick up some copies of the umpteen diesel magazines at the newsstands, I read em all and they all prove the same thing, the ps is way behind at the track and at the pulls.
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Old 09-24-2008, 03:16 PM   #6 (permalink)
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Originally Posted by Westro View Post
I'm not a high HP guy. But seems to me, you need a motor with a stout bottom end and a fuel system that will flow enough... cheaply.

Then be able to keep the heads on it with excessive boost.

But then again what do I know

I thought the 7.3 was a pretty stout motor but it's not in the same league although I think they are fantastic engines.
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Old 09-24-2008, 03:52 PM   #7 (permalink)
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Personally, I couldn't care less about hopping up a $50K pickup so it gets 450hp instead of the stock 350hp. I just want a good truck that's reliable and can tow.

My '03 7.3L with the stock 250 ponies under the hood does just fine. Some day I'd like to be in a position to buy a new Ford Super Duty and I hope the next truck is as good as this one is.
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Old 09-24-2008, 06:35 PM   #8 (permalink)
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powerstrokes can run with cummins and the duramax. You just have to know what you are doing as well as the time and the money. My neighbor had a 01 7.3l and won every truck pull he was in except one. Yes he out pulled cummins and duramaxes. this guy also proved that can be done. YouTube - truck pull ford twin turbo powerstroke
He had the normal pullers problems but won the points race.
p.s. I still would like to see what can be done with older cat engines in a ford truck. I have seen and heard of it being done, but that is it.
maybe the scorpion will turn out to be a beast of an engine. We will see.
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Old 09-24-2008, 06:44 PM   #9 (permalink)
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Originally Posted by Wobblin-Goblin View Post
Personally, I couldn't care less about hopping up a $50K pickup so it gets 450hp instead of the stock 350hp. I just want a good truck that's reliable and can tow.

My '03 7.3L with the stock 250 ponies under the hood does just fine. Some day I'd like to be in a position to buy a new Ford Super Duty and I hope the next truck is as good as this one is.
Hey I'm with you there, but being a die hard ford fan like I am I want to see fords do well when it comes to competitions, my 01 had 250 hp until I installed an edge evolution and I gotta tell ya, it's addicting, it has great power and gets better fuel mileage over stock. Out of the box Power strokes are right there with the other two, but I'm not talking about that, I'm talking about the ability to tune it so it can be a reliable truck that can run the 1/4 competitively, that, IMO, is the only thing the other makes have on ford, trust me, for every guy like you who is satisfied with the stock HP/TQ there are 2 that want to say they have a ford diesel that can kick some a$$ at the track.
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Old 09-24-2008, 06:52 PM   #10 (permalink)
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Originally Posted by macmaniac1 View Post
powerstrokes can run with cummins and the duramax. You just have to know what you are doing as well as the time and the money. My neighbor had a 01 7.3l and won every truck pull he was in except one. Yes he out pulled cummins and duramaxes. this guy also proved that can be done. YouTube - truck pull ford twin turbo powerstroke
He had the normal pullers problems but won the points race.
p.s. I still would like to see what can be done with older cat engines in a ford truck. I have seen and heard of it being done, but that is it.
maybe the scorpion will turn out to be a beast of an engine. We will see.
Well, yes, I know there are a FEW power strokes out there that can compete but they are so few and far between compared to the others, heck there are a lot of guys who yank the PS and slap a cummins in because it has so much more potential, if you put the same amount of effort and money into a d-max or a cummins as you would have to put into a PS the others would have a lot more power, I've seen what has to be done to a 6.0 and a 7.3 and it's a lot of work compared to the others where they just get a programmer, bigger injectors and a better fuel pump and their pushing big numbers.

Your right about the CAT engines, I'd love to see it but CAT doesn't have the capacity to build that many motors and from what I understand their fuel delivery wouldn't get the HP that is required to compete. like you, I hope this 6.7 has some nads.
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Old 09-24-2008, 10:39 PM   #11 (permalink)
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I also read somewhere that there are people pushing 53 lbs of boost on the 6.4 and not blowing the head gaskets.
it depends on how boost is measured... those numbers are coming with the EGR's still on, which is causing an odd reading. In the spartan tunes, the EGR is off, and they are hitting 37-38lbs

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Oh I've been paying attention and those power numbers you gave are accurate and all that but it still falls well short of the other two makes, pick up some copies of the umpteen diesel magazines at the newsstands, I read em all and they all prove the same thing, the ps is way behind at the track and at the pulls.
How many 08's are out there pulling? How long has the 6.4L been out?
How about the duramax, the cummins? Give it time. The older PSD's and the 6.4L are different monsters.
and there are not that many 700+ hp duramaxes, or cummins, on stock turbos and bottom ends....
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Old 09-25-2008, 06:54 AM   #12 (permalink)
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it depends on how boost is measured... those numbers are coming with the EGR's still on, which is causing an odd reading. In the spartan tunes, the EGR is off, and they are hitting 37-38lbs


How many 08's are out there pulling? How long has the 6.4L been out?
How about the duramax, the cummins? Give it time. The older PSD's and the 6.4L are different monsters.
and there are not that many 700+ hp duramaxes, or cummins, on stock turbos and bottom ends....
you make a good point, i have seen a few 08 d max trucks that ripped it up pretty good but no 6.7 cummins which surprises me. I think the 6.4 has great potential but it's not going to be around much longer.
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Old 09-25-2008, 06:21 PM   #13 (permalink)
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I wish Ford would offer a "detuned" version that had around 275hp and 550tq for those of us who have no interest in "competing."

This way Ford could cater to both groups of Super Duty owners.
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Old 09-25-2008, 07:11 PM   #14 (permalink)
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I wish Ford would offer a "detuned" version that had around 275hp and 550tq for those of us who have no interest in "competing."

This way Ford could cater to both groups of Super Duty owners.
Why? If you don't want to use all 390 hp than don't put your foot down, it's not like it's out of control or anything like that. Course you know, the 09 F150 will have the 4.4 liter powerstroke with 300 hp and 440 lb ft that has a best in class tow rating, that's not a bad option for people that want a diesel but don't want gobs of power.
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Old 09-25-2008, 08:13 PM   #15 (permalink)
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Why? If you don't want to use all 390 hp than don't put your foot down, it's not like it's out of control or anything like that. Course you know, the 09 F150 will have the 4.4 liter powerstroke with 300 hp and 440 lb ft that has a best in class tow rating, that's not a bad option for people that want a diesel but don't want gobs of power.
If a Powerstroke detuned to sub-300hp and around 550tq could get better fuel economy and improved reliability, I think quite a few people would opt for that.

As far as getting an F-150, that won't cut it. My business requires me to tow trailers every day and many times I'm towing 10,000-12,000lbs (and sometimes a bit more than that). Sure, the F-150 is rated for towing 11K...but let's face it, a steady diet of that will destroy that truck. The Super Duty is bred for towing, that's what I need. I just don't need a gazillion horsepower because I've never been late due to only having 250hp under the hood.

I don't begrudge you guys for wanting all the hp you can wring out of these engines, I just think it'd be smart to offer a range of tuning options straight from the factory.
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