Rods - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 25 (permalink) Old 10-30-2008, 01:27 AM Thread Starter
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Rods

What set of aftermarket rods can you put in w/o rebalancing the crank?

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post #2 of 25 (permalink) Old 10-30-2008, 01:36 AM
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Re: Rods

I personally wouldn't ever change the rods without rebalancing. I'm sure it's been done before, but the PSD is expensive enough that I'd rather do it right the first time.

Dennis Schroeder - Co-Owner of Strictly Diesel

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post #3 of 25 (permalink) Old 10-30-2008, 01:49 AM
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Re: Rods

Quote:
Originally Posted by Maintain View Post
What set of aftermarket rods can you put in w/o rebalancing the crank?
Crowers.

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post #4 of 25 (permalink) Old 10-30-2008, 02:24 AM
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Re: Rods

Technically, the big end and small end would have to be exactly the same weight as factory, and that will be hard to get. When i changed from 13:1 to 15:1 pistons, the pistons were 30 grams lighter than the old setup (which was balanced with a clutch) the guy took 10 grams off the big end of each rod, which brough it down within .01.

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post #5 of 25 (permalink) Old 10-30-2008, 02:38 AM
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Re: Rods

Marty,

Just do it right and buy a core to build up and then you don't have to worry about it. Form there you can sell the old engine and re-coup your investment in the core.

Just to throw out some double talk I'd say with as heavy as everything is in our engines if things are a few grams off it won't matter like Dave says but Dennis is correct. Do it the best way to make it live longer.

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post #6 of 25 (permalink) Old 10-30-2008, 02:41 AM
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Re: Rods

Marty i know a guy with a shop in Frederick county, MD (right near me), he had to make custom weights to get my crank to balance, he now has the stuff he needs to do it, mine was almost exact, he claimed NHRA motors require a balance factor of .2, mine was .01, near perfect. Made me happy :)

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post #7 of 25 (permalink) Old 10-30-2008, 02:50 AM
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Re: Rods

Sets of stock forged rods can be as much as 25g different on the small end....ask me how me and my machine shop know. Don't buy "matched" sets off ebay!


With the stock rods having that big of weight descrepencies between sets I would balance ANY rotating assembly in a PSD!!


Any body need a set of worked forged rods that won't balance without removing 25 and 26 grams off 2 of the rods small ends?

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post #8 of 25 (permalink) Old 10-30-2008, 02:52 AM
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Re: Rods

Where in fredneck? I talked to a few shops that deal with diesels up there. Would you mind sharing the name. I have a few stockers that might need a re-build.

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post #9 of 25 (permalink) Old 10-30-2008, 02:58 AM
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Re: Rods

In Woodsboro, name is Gunther's machine shop. They did the boring and honing on my block, too. The guy who actually does the balance work is Dynamic Performance, he just stores his new 40k balance machine in the corner of the shop.. That guy's from out in hagerstown.

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post #10 of 25 (permalink) Old 10-30-2008, 03:21 PM Thread Starter
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Re: Rods

Kris

How much does getting the rotating assembly balanced and align honed after girdle is installed cost?

You guys probably already know what I'm up to.

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