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Old 09-12-2019, 07:12 PM   #1
richaarizard
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Default Micropolishing a crankshaft?

I have a crankshaft from my last build it lasted 10-15k miles and went down from a bent rod. No spun bearings, had the crankshaft mic'ed and everything is within spec stil, no deep scratches nothing.

Planning on balancing the crankshaft as well. So my question is should I micro polish the crankshaft or is it not needed and I can just slap on the new bearings and get then measured for clearances?
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Old 09-12-2019, 08:43 PM   #2
Turn in Concepts
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We do it here on the more expensive builds where people are chasing every last bit of time. We a bit lower oil temps compared to not polishing so I say do it if you have time.

If you're super mega baller send it out for REM polishing.
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Old 09-12-2019, 10:02 PM   #3
KillerBMotorsport
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Second the REM process. If you're going to do it, do it right.
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Old 09-12-2019, 11:19 PM   #4
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Quote:
Originally Posted by KillerBMotorsport View Post
Second the REM process. If you're going to do it, do it right.
Oh! Well in that case lets do this!!

REM polish and then DLC
Crank
Cams
Lifters
Valve stems

I think the last time I got lifters quoted it was something like $40 each. Then I ordered lifters for a VQ35 and got DLC from the factory... for cheaper than Subaru lifters. Dammit Subaru!!
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Old 09-13-2019, 10:01 AM   #5
Bansheeboy11
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REM is a great option, also look into WPC treatments as well its a little more cost effective for a car that doesnt have sponsers on the sides.
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Old 09-15-2019, 11:10 AM   #6
Paul
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Quote:
Originally Posted by Bansheeboy11 View Post
REM is a great option, also look into WPC treatments as well its a little more cost effective for a car that doesnt have sponsers on the sides.
Rem and WPC pricing is about the same if anything REM would be cheaper but I do believe WPC has better results
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Old 09-15-2019, 06:17 PM   #7
user1029
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Someone has been using tinder too much
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Old 09-15-2019, 07:15 PM   #8
subaru_gc8
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Quote:
Originally Posted by richaarizard View Post
I have a crankshaft from my last build it lasted 10-15k miles and went down from a bent rod. No spun bearings, had the crankshaft mic'ed and everything is within spec stil, no deep scratches nothing.

Planning on balancing the crankshaft as well. So my question is should I micro polish the crankshaft or is it not needed and I can just slap on the new bearings and get then measured for clearances?
being that you bent a rod I would see if the balancing has been thrown off first. then move forward. but in the same token, a new one is probably less than what you would pay to get yours all balanced and polished.. just saying
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