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Posted

i'm not trying to jack the thread here, but noticed that some people have been saying that they get the pistons cut and worm holes added. i know what the worm holes are, but what exactly is getting cut on their pistons? like the skirt or something, so it doesn't block flow to the lower transfers.....or is it the opening of the 2 intake ports on the side of the piston?

Posted
i'm not trying to jack the thread here, but noticed that some people have been saying that they get the pistons cut and worm holes added. i know what the worm holes are, but what exactly is getting cut on their pistons? like the skirt or something, so it doesn't block flow to the lower transfers.....or is it the opening of the 2 intake ports on the side of the piston?

you hit it on the head.its both

Posted

I would avoid opening up the windows on the intake side of a cub. The intake ports are LONG ports, and cubs "stripe" the intake side of the piston.

 

You open them for two reasons, one to lighten the pistons (a few grams can add up when it comes to rotating mass) and to get fuel in faster and more of it for the intake charge...

Posted
I would avoid opening up the windows on the intake side of a cub. The intake ports are LONG ports, and cubs "stripe" the intake side of the piston.

 

You open them for two reasons, one to lighten the pistons (a few grams can add up when it comes to rotating mass) and to get fuel in faster and more of it for the intake charge...

 

You got that right. No cutting the piston on the cubs. Cutting up the cubs now thats a different story. Oh, I have said too much :tongue:

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