CYLINDER SQUISH BAND CLEARANCE CHECK

A proper squish clearance can give your motor 10% more power. Most aftermarket cylinder kits are not made to this close tolerance of 0.6-0.8mm proper piston clearance. We check the squish band clearance and usually have to close the gap from .18 -.13mm down to .8mm gap for proper squish band function to work properly.

More Videos...


DIO MONSTER RACING PISTON PROBLEMS
54MM piston is too tall and will hit crankshaft. The skirts must be shaved to supply clearance for full piston/crank rotation.





OPENING THE INTAKE PORTS BY 10%
I am enlarging the aluminum crankase intake ports by 10% to see if it will increase performance at FULL POWER.





DIO 54mm Piston Clearance TIPS
Small aluminum corners have been removed and piston has full un-opposed travel throughout its 360 degree range. Cylinder deck height will me measured and fitted next.





(3)- Mating the 54mm cylinder to Stroker Crank
This is the tricky part of compressing both rings while trying to manouver a 4 kilo iron cylinder above them. It does not help with my slightly stiff, 50 year old hands. It should be a snap for you young guys. RH




Follow