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Crank Pully, Un-Balanced, Problem?

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Old 04-14-2004 | 08:25 AM
  #11  
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Definatly going to get replaced! Thanks for all the help guys!
Old 04-14-2004 | 10:34 AM
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Originally Posted by westcoaststyle
Ya, but you were just daily driving weren't you Andy?

Running925 says he'll be running very high hp numbers and I'd assume high RPMs which is where balance is critical. Replace the pulley, it's cheap.
I'd agree with replacing it, I was going to replace mine but it didn't seem to affect my car at all.
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Old 04-14-2004 | 10:37 AM
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i notice some weird vibrations at around 2500 rpm when i had my ctr n1 pulley on my motor. i feel the balancing is def. an issue to address. i don't understand how the pulley is a big issue while the fly wheel on the other end is not.

any insight?
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Old 04-14-2004 | 10:50 AM
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some things are going to be noticed more than others.. but all will cause a longevity issue.
Old 04-14-2004 | 11:54 AM
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Originally Posted by Bumnah
i notice some weird vibrations at around 2500 rpm when i had my ctr n1 pulley on my motor. i feel the balancing is def. an issue to address. i don't understand how the pulley is a big issue while the fly wheel on the other end is not.

any insight?
I see the entire rotating assembly to be an issue. I had clutch, flywheel, crank, rods/pistons, and crank pulley all balanaced up to 10k RPMs. h:

I'll be doing it again with the new build. I just don't see spending all that money and then seeing it go down the tubes because of a small detail that was overlooked.
Old 04-14-2004 | 12:01 PM
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Originally Posted by westcoaststyle
I see the entire rotating assembly to be an issue. I had clutch, flywheel, crank, rods/pistons, and crank pulley all balanaced up to 10k RPMs. h:

I'll be doing it again with the new build. I just don't see spending all that money and then seeing it go down the tubes because of a small detail that was overlooked.

How did u have it balanced??
Old 04-14-2004 | 12:53 PM
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Take your block, main caps, endcaps and all that I mentioned to a machine shop that's equipped to do it.
Old 04-14-2004 | 01:10 PM
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Originally Posted by westcoaststyle
Take your block, main caps, endcaps and all that I mentioned to a machine shop that's equipped to do it.

Humm.. sounds like a plan.. i might have to go do that. I

I just located a machine shop thats able to do that & they are only 10min. from my house!
Old 04-14-2004 | 01:26 PM
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so let's say. we take all the rotating assembly from the short block, and i put on one of those super light unorthodox racing crank pulleys, and have my engine balanced. would you say the issues that are a part of the unorthodox crank pulley will be solved?
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Old 04-14-2004 | 01:27 PM
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Pretty much.


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