Max bore

Anyone know what the maximum overbore is for a stock minerelli cylinder?

Can it be bored to 51mm? 47mm?

Re: Max bore

Probably not, they are pretty thin castings and the transfer ports will be all messed up, you could probably go 1.5 mm or so but that's it. Also the skirt will get thin and possibly break

Re: Max bore

Minerelli v1 don’t have a skirt?

Re: Max bore

Nope, don't have skirt like all those other girly motors.

Re: Max bore

Overpriced Parts /

> baird co Wrote:

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

> Nope, don't have skirt like all those other girly motors.

Don’t matter my 64cc polini kit puch magnum beat a 90cc Minerelli 5 star general so it’s not the size of the ship it’s the motion of the ocean,

Re: Max bore

Haha yeah, I totally forgot about that.

Re: Max bore

Dirty30 Dillon /

So you bore your stock V1 cylinder out to 51mm... then what?

You ports are still constricted by the intake and exhaust flanges, and your transfer volume is still tiny for that bore?

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