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Old Feb 9, 2008 | 03:29 PM
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powerstroke motor

what year did ford stop putting the forged rods and all the other stuff in the powerstroke motor bc my cousin is looking t getting a powerstroke that was manufactured in 09/00 and i have a powerstroke that was manu. in 04/00and it has the forged rods in all in it and i wqas just wondering when they wne from forged to the aluminum bulls#$*
 
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Old Feb 9, 2008 | 03:37 PM
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In the middle of 2001 is when they went to PMR's, like I have, BTW.
 
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Old Feb 9, 2008 | 11:02 PM
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Aluminum what? Who's got aluminum rods? I want a set!
 
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Old Feb 10, 2008 | 03:53 PM
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if ur truck is an 02 then u already have them i think but they can't handle as much power as the forged like what came in the 99,00, and early01. i've seen a 02 try to support right around 500hp and the motor had a high speed come apart it ain't healthy and my 00 is already pushin 400 and its perfectly fine with 152000 miles on it but i heard somewhere that the 01's and up 7.3's couldn't handle above 400hp unless you bought all new guts for the motor. is that true?
 
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Old Feb 10, 2008 | 04:17 PM
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Originally Posted by ts_stroker
if ur truck is an 02 then u already have them i think but they can't handle as much power as the forged like what came in the 99,00, and early01. i've seen a 02 try to support right around 500hp and the motor had a high speed come apart it ain't healthy and my 00 is already pushin 400 and its perfectly fine with 152000 miles on it but i heard somewhere that the 01's and up 7.3's couldn't handle above 400hp unless you bought all new guts for the motor. is that true?

what injectors are you running? aftermarket turbo?
 
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Old Feb 10, 2008 | 04:23 PM
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It depends on who you talk to about the number. I have seen 400-450. Either way, it's not aluminum by the way, it's powdered metal. PMR stands for powdered metal rods. Think of powdered metal like that cheap particle board furniture with the shelf paper laminate versus good old fashioned wood furniture. It works for what it's made to do and it's waaaay cheaper than real wood, but it won't stand up to abuse like real wood will. Powdered metal is the same concept. The PMR's were enginered to withstand 250HP and 550 ft/lbs of torque. If you exceed it by 60-75% more than what it was originally designed for, well, you takes your chances.
 
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Old Feb 10, 2008 | 04:33 PM
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oh ok thanks i wasn't sure what exactly they where i jsut needed to kno what year they started putting them in the motors i kno for a fact mine has forged everything in it and **** but i knew they did it in 01 but wasn't sure if his would be like that or not.
 
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Old Feb 10, 2008 | 04:40 PM
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Originally Posted by strokin_it7.3
Aluminum what? Who's got aluminum rods? I want a set!
I'm a little surprised at this. Aluminum rods are best in very high rpm engines. And one thing diesels ain't is high rpm. I may be wrong here, but back in my drag racing days it was necessary to leave the line at 1500 to 2000 more rpm to avoid bog because of the lack of inertia the aluminum rods would provide. Of course I am referring to engines that are being shifted at the 9000 rpm point. Someone feel free to correct me if I am mistaken.
 
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Old Feb 10, 2008 | 04:45 PM
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Anytime you can lessen rotational mass in a high rpm situation is good. Less HP needed to rev is good. There has been alot of debate on the subject of inertia in the flywheel and other areas in drag racing and road racing applications but I haven't seen much of the discussion applied to diesels.
 
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Old Feb 10, 2008 | 05:03 PM
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Diesel engines are primarily torque engines as in pulling power. Hence the more cubic inches the better and the length of the stroke does not matter. In fact longer stroke than bore may be better. But as in something like a mouse motor Chevrolet, short stroke, big bore you can get away with a lot of rpm's. Aluminum rods in a long stroke, low revving engine would be a total waste of money. Now if you can find after market forged steel rods for a 7.3 that would be money well spent.
 
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Old Feb 10, 2008 | 07:09 PM
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What is the best way to know or find out about a 2001? vin # or code on motor? I have always had to call stealership! I am sure yall know a better way to check for P M Rs thanks.
 
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Old Feb 10, 2008 | 09:43 PM
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I was just messing with the kid who apparently messed up on some terminology, and i took advantage of it, trying to make a joke. I know they don't make aluminum rods for powerstrokes, however i have one sitting behind me on my dresser from a top fuel dragster, that is about 1/3 the weight of a powerstroke connecting rod. And by the way TS stroker, what stuff do you have done to make 400hp? Are you figuring 250hp stock plus 140hp equals 390?
 
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Old Feb 10, 2008 | 10:30 PM
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Originally Posted by Cracker 73
What is the best way to know or find out about a 2001? vin # or code on motor? I have always had to call stealership! I am sure yall know a better way to check for P M Rs thanks.
Sam, there is an inspection port on the rear of the block that you can open up and look in, I don't remember exactly what to look for, but I know you can identify them without tearing the motor down.
 
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Old Feb 10, 2008 | 10:51 PM
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Originally Posted by strokin_it7.3
I was just messing with the kid who apparently messed up on some terminology, and i took advantage of it, trying to make a joke. I know they don't make aluminum rods for powerstrokes, however i have one sitting behind me on my dresser from a top fuel dragster, that is about 1/3 the weight of a powerstroke connecting rod. And by the way TS stroker, what stuff do you have done to make 400hp? Are you figuring 250hp stock plus 140hp equals 390?
kris, i believe he is speaking that wya, from the crank

that is why i asked if he had sticks and a hair dryer
 
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Old Feb 10, 2008 | 11:28 PM
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its not that pmr are junk it just not what our engine are designed for. 6.0's and d-max can make alot of power on pmr's. our engines need forged rods to handle the power
 
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