146 bigbore and V2 head, Dino run before and after

[Justfaster36]

My mini motard build is a SSR 170tx with a XY140 motor due to racing class I’ll be participating in. I dyno’d stock 140 before and after installing 146 bigbore with V2 head an mikuni 26. Running two base bases and a metal head gasket to bump compression up some. Runs were a week apart and same weather conditions. Ran both runs on 12” Dunlop TT93’s

 

[Cordogs]

WOW! Massive gains, I bet your happy with that.

 

[Justfaster36]

WOW! Massive gains, I bet your happy with that.

Yes I am! I’ll be up against the 190 ohvale and Honda 150r’s in the one of two classes I’m racing so I want to get as much out of the 140 motor as I can but have to keep it under 150cc’s for the other class which is up to 150cc air cooled