Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: tevie54 on June 13, 2024, 10:03:29 AM

Title: Piston lightening
Post by: tevie54 on June 13, 2024, 10:03:29 AM

Has anyone tried to lighten a piston by removing material from the underside or the skirt.

Title: Re: Piston lightening
Post by: Ian on June 14, 2024, 07:21:09 AM

I haven't tried it myself, but I'm guessing this is a case of "You have really got to know what you are doing!" Modern pistons are a lot shorter than "classic" engine pistons. Sorry I can't be of help really.

Title: Re: Piston lightening
Post by: JOOLZ on October 16, 2024, 10:27:26 AM

I have seen it done, you will need access to a mill and you really have to know where the stresses on the piston are, There are very few advantages to doing this though as if its a single you are never going to rev it hard enough to see any advantage of lightening it, in a multi cylinder engine it can help you ballance the masses which could get you a few more rpm's

Title: Re: Piston lightening
Post by: johnr on October 19, 2024, 10:04:52 PM

what are you hoping to achieve by this?