ChitownRC

hey I heard someone talking today about now don't laugh cinching? a motor?
what in the heck does it involve and does it work?. Something about heating up the piston to get a tighter fit.
any info out there?

pinching.

it pinches the sleave to make a tighter fit to the piston.

how do you do it? I have have a couple motors it might work on

There is a DIY tool you can buy... but I'd suggest sending it in to someone like OS Rocket


http://www.osrocketracing.com/pistonsleeve.php

dont buy the tool u will ruin ur motors

I would send it to OS Rocket. From what I heard on the grid you can usually get another on average 4 gallons more out of your motor.