Extrud hone cylinder / ports

sxviper-s

Member
Joined
Apr 4, 2016
Messages
168
Location
Buffalo, NY
I have seen many places offer porting for snowmobiles. Has anyone had a engine cylinder extrud honed?
Can anyone come up with pros or cons to this idea? Love to hear some input on this.

My problem with having port work done is , I believe most is done by hand allowing errors and inconsistencies.

Anyone know of anyone that ports cylinders with a CNC machine?
 

Dynotech did a extrud hone dyno test. If i remember right, having it done on the exhaust port hurt hp
Back in the 90's I think Tim Bender use to have the Vmax4 porting done by CNC, not sure who does now
 


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