Gas vs PSD
Lead Driver
Joined: Nov 2007
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The long stroke of a diesel creates higher max piston speeds, and that's what dictates the ratings of the internals. The rods are what can't take the linear loads, as the crank tries to rip them in half pulling the AL pistons back from TDC.
Senior User
Joined: Sep 2004
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They did revise the testing procedure a couple years ago--mostly to rate hybrids a little more accurately (read lower)--and rerated older cars (also mostly lower), too. But for some cars, like my Thunderbird, I think they got farther away. (I'm actually surprised Johnny's mileage is as low as it is.) When I was doing mostly highway driving, usually 70-80, sometimes more, I consistently saw at least 24-25 mpg average. It was rated at 24 highway, and I was disappointed anytime I saw less. Now I think its rated at 22.
Super Moderator
Joined: Oct 2005
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From: SW Virginia
I started one here:https://www.ford-trucks.com/forums/1...l#post10397749
It's a 6.2L V8 versus pretty much anything thread.
Postmaster
Joined: Apr 2006
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From: CA Bay Area
Which components are heavier? The cranks can be heavier, but they are stout and can be spun faster than 5k.
The long stroke of a diesel creates higher max piston speeds, and that's what dictates the ratings of the internals. The rods are what can't take the linear loads, as the crank tries to rip them in half pulling the AL pistons back from TDC.
The long stroke of a diesel creates higher max piston speeds, and that's what dictates the ratings of the internals. The rods are what can't take the linear loads, as the crank tries to rip them in half pulling the AL pistons back from TDC.
So the bridge build out of matches can hold multiply of its own weight, the same bridge build in full size will collapse under its own weight.
Coming to the engines, in my teens I was playing with miniature engines. Those normally operated at 16,000 rpm, while in different application friend run them at 24,000 rpm. The size of the cylinder was 2.5 cc, or bigger tablespoon.
Now seeing 1 liter cylinder spinning its 100 lb above 10,000 rpm would be something
Thread Starter
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Modular motor junkie
Joined: May 2009
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From: Texas
It will run away from anything ( stock ) other than the new 6.7.
New User
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From: San Martin
For me it was a matter of economics
when I was shopping on craigslist in the SF bay area, I saw tons of V8s priced low (which I what I wanted since the truck is used mainly for occasional weekend hardware store trips and some towing), but the PSDs were a good $4000 more or so, or had such high mileage (fleet trucks) I was afraid the interiors would be thrashed.
Then this V10 came along that was maybe $1000 more than the average cheap V8 F250 and I jumped on it given it's condition in and out and the additional torque.
Then this V10 came along that was maybe $1000 more than the average cheap V8 F250 and I jumped on it given it's condition in and out and the additional torque.
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New User
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From: San Martin
Ford service manager agrees on that....
If inwas a betting man I would too. I went into a walmart the other night and it was getting remolded. The company had 5 SD work trucks 1 250 the rest 350/450s. I noticed a 05ish 350 I walked and asked and he said it was an 05. It had 372k miles. Only has had 1 turbo put on. If the story is true thats nuts.
New User
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From: San Martin
But he was talking about 7.3L only
even he admitted the later PSD turbos are much less reliable, and he has no reason to tell me that.
Cargo Master
Joined: Jan 2005
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Why don't you think it'll pull away from the 6.7? I can go ahead and tell ya I've already been beat by a v10. Kevin and I had to run em. I don't think it would have been as close as it was if he hadn't spinned on take off. He ran me down.
The 6.2l is somewhere between the 5.4 and 6.8l as far as power from the seat of pants. Its an awsome motor none the less. I enjoy driving it. I like how my 6.0 pulls better and kevin perfers his 6.8l. We're not say it can't pull. Its just not the same experence.
The 6.2l is somewhere between the 5.4 and 6.8l as far as power from the seat of pants. Its an awsome motor none the less. I enjoy driving it. I like how my 6.0 pulls better and kevin perfers his 6.8l. We're not say it can't pull. Its just not the same experence.
New User
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From: San Martin
right then a 2010 PSD drove by the service entrance spewing smoke
and he admitted they had just installed a "$15K replacement engine", as he put it.
Cargo Master
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What are you saying? I haven't said I seen lots of anything. I don't think the turbos are unreliable either. Why I think a 300+ truck is nuts in this great of condiction is because of the fact its a construction companies truck. It idels alots prolly gets oil/air filters changed when there's nothing else to do. It wasn't the fact it was a 6.0 its the fact any truck survive that use.
Posting Guru
Joined: Aug 2007
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From: Auburn, Wa
If I was picking up a new truck I would be with the ECOBoost engine. the torque curve is sic, and its a direct injection motor. And Turbo
Postmaster
Joined: Oct 2006
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From: SE Texas
They did revise the testing procedure a couple years ago--mostly to rate hybrids a little more accurately (read lower)--and rerated older cars (also mostly lower), too. But for some cars, like my Thunderbird, I think they got farther away. (I'm actually surprised Johnny's mileage is as low as it is.) When I was doing mostly highway driving, usually 70-80, sometimes more, I consistently saw at least 24-25 mpg average. It was rated at 24 highway, and I was disappointed anytime I saw less. Now I think its rated at 22.
Now, with roughly 140 hp more power available, around town it gets 13-14 (mostly due to the 4000 stall converter and spending alot of time in 1st gear), and mixed driving will get 16-18. But highway trips are just over 20. I'm not gonna complain really-a high 11/low 12 second N/A car that weighs nearly 3700lbs with a little 281ci engine that gets over 20 mpg.
JL