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Old 07-28-2008, 06:22 PM   #16
Sean485
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Re: What are the best main/rod bearings?

Do not turn a mitsu crank. Search, it has been covered before.
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Old 07-28-2008, 06:38 PM   #17
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Re: What are the best main/rod bearings?

What about micro polishing the crank?
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Old 07-28-2008, 07:53 PM   #18
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Re: What are the best main/rod bearings?

Quote:
Originally Posted by turbolover
What about micro polishing the crank?
I'm also interested in this because I spun a rod bearing in my other engine and if its scored (I hope not) it will have to be polished again before putting in new bearings.
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Old 07-28-2008, 07:58 PM   #19
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Re: What are the best main/rod bearings?

Quote:
Originally Posted by taylorb765
Ya its gonna cost me 200$ to get it turned. I was going to go with an eagle forged crankshat but i guess its not much of an improvement over the stock crank? I have heard the oem crank can hold over 500hp do you think this is true?
Haha. Our cranks are the strongest part of out motors. They've been known to handle into the 1000hp range.
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Old 07-28-2008, 09:08 PM   #20
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Re: What are the best main/rod bearings?

The stock mitsu crankshaft?
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Old 07-28-2008, 09:11 PM   #21
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Re: What are the best main/rod bearings?

I pulled the motor today and removed the cradle and rod caps. 2 spun rod bearings and even a spun main not sure if the crank can be saved but im gonna take it to the machine shop today. Looks like the filings from my balancing shaft bearing is what caused the damage, so my next motor will not be running balancing shafts.
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Old 07-28-2008, 09:11 PM   #22
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Re: What are the best main/rod bearings?

Yep. I don't know what the fastest 7 bolt crank was pushed to but there's plenty of 6 bolts out there.
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Old 07-28-2008, 09:16 PM   #23
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Re: What are the best main/rod bearings?

So you think i could push over 500 without any problems? Its gonna take me alot of time and money to get that far but i wanna do it now so i dont have to take it back apart later.
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Old 07-29-2008, 06:01 AM   #24
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Re: What are the best main/rod bearings?

Mitsu cranks handle a lot of power. They are forged and well made from the factory. Bearings are bearings in my opinion. I have seen many run factory bearings and factory cranks in cars making around 1000 WHP. I dont know after that. Micro polishing is required when installing a factory uncut crank with new bearings.
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Old 07-29-2008, 09:12 AM   #25
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Re: What are the best main/rod bearings?

What happened to Clevitte (sp?) I know they used to be the "best" and they offer Tri-metal or at least did couldn't swear to it now.
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Old 07-29-2008, 03:10 PM   #26
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Re: What are the best main/rod bearings?

Quote:
Originally Posted by taylorb765
So you think i could push over 500 without any problems? Its gonna take me alot of time and money to get that far but i wanna do it now so i dont have to take it back apart later.
I think you will be fine as long as its built RIGHT and your crank is in good condition.. I wouldn't be bringing it to the same shop if you've already had problems with another build..
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Old 07-29-2008, 08:05 PM   #27
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Re: What are the best main/rod bearings?

Yup different shop dont trust them anymore. Im doin the build myselft but everything is gonna be new except for the block. Even thinkin bout crower 280 cams, springs and retainers. I picked up a remanufactured crank for 250$ think i got a good deal there when the wanted 200 to cut the other one and the they could guaretee it wasnt bent.
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Old 07-30-2008, 02:14 AM   #28
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Re: What are the best main/rod bearings?

I 'd try to stay away from those remanned ones. Many of them have been turned as well and as it was already mentioned is pretty much a no-no. I know it is an additional PITA for you right now but try to return it if it does look like it was cut and locate a virgin one through ebay, partstrader or whatever.
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Old 07-30-2008, 03:31 AM   #29
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Re: What are the best main/rod bearings?

Exactly, a re-manned crank is going to be turned as well. Find a good used OEM crank, a new oem crank, or a quality forged crank.
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Old 07-30-2008, 10:28 AM   #30
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Re: What are the best main/rod bearings?

I can get a new topline crankshaft off of ebay for $450 shipped. Is topline trustworthy? Or should i be looking for oem?
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