Re: E50 cranks to pair with a polini

Sander Mulder /
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> Papa _ Wrote:

> -------------------------------------------------------

> Dunno specifically about your question. However, I killed some time

> today reading about crank balancing and found this cute yerterb videah.

>

> Simple little static balance setup. Probably not perfect, but better

> than nothing. Since you seem like you’re in the market for crank info,

> I’m going to dump it here.

>

>

This is NOT GOOD for a puch crank. you have to use a balance factor. In our case, horizontal cylinder it't about 30-40%. this means you have to weight the (half) conrod, pin, needle bearing and piston, take 40% of this, hang that in your crank, then it should not be moving in any position.

back on topic, i have used topracing cranks in my engines without problems, with high hp 70cc kits.

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