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Originally Posted by Stang Seller
Listen, I'm telling you that I understood what he said because he is speaking my language. We are talking about a Small Block Ford engine, not a VR6 and not a 1.8T. NUmber of cylinders has to do with everything, a 4 cyl will rev higher than a V8 because it has to to make reasonable power. Most of todays 4 cylinders can rev up to 8000rpm without blowing up and can make power up there (7000-7500rpm) because they have the head and intake flow to do it. Our big clunky V8 just doesnt have the airflow capacity, not only that the block just cant handle those kinds of RPM's. Also, you can't really knife edge a 302 crank because the counterweights are huge. It's much easier to do on a 4 cylinder crank because the counterweights are smaller and much closer together.
Now let's go back to where this started:
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Honestly, I totally agree with everything you've said so far... so maybe we're just not on the same page here... I understand that the V8 u'r talking about doesn't have the flow to REV that high. And I never disputed that.
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Believe it or not, balancing is not REQUIRED to rev high. We do it because we want our motors to last. You're trying to be a smart ass and explain why it is needed, but it isnt required.
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Well I guess it's not a matter of me being a smart ass, but in my mind something that will make a motor last for doing what I ask of it (ie. REV) means to me it is required.
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If your motor is capable of withstanding those kinds of RPMs and you want it to last, then you balance it.
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To me that is a requirement
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BUT, we're not arguing that he wants the motor to last. We all know its better if you balance, hell my motor is balanced but it never sees beyond 5700RPM.
The bottom line is that balancing is not required, but you are right that it should be done if you intend to keep your motor together. Anyways, I could go on forever but I'd rather not. I'll let Strokerace explain exactly what he meant, because I'm pretty sure we're on the same page.
SS
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Again I agree... I guess we were the ones that were on the wrong page.. lol...