Porting 701 engine

Is there a BIG difference between porting for bottom end vs porting for full race course engine ? example : would a full race eng be good for a freestyle ski or will it lack on the bottom end power ?
 

Stu Carr

What fire extinguisher?
Location
Northampton, U.K
For low end the ports are wider for top end they are higher.It is possible to get bottom end back on a race cylinder with the likes of water injection.
Most builders port differently, talk to a builder with your requirements. I personnaly prefer an engine that accelerates quickly rather than bottom end grunt
 

SkiDaddy

Just Havin' Fun!
Location
Orange City, FL
If you want instant hit off idle then yes there is a big difference. If you're already riding at 1/8 throttle or more (on a standup) the differences are less.

BTW I'll have a ported cylinder up for sale very soon.:sneaky:
 
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