gday gavin,
try a 105 deg header steel exhaust, lighten the piston match the
piston to the ****ts,i have reshaped the piston ****t area,813 carb,0.005
copper gasket,zero drag seals,should see you get around 18500 to 19000
depending on the set up and prop ,the prop and setup are
everything,crap prop and set up will make a mint motor run crap,lighten
the piston to start with then 105 deg exhaust and you will see very good
rpm.
the 26cc sikk i have is now pulling around 19000rpm with the 6719 3
blade
modfied prop shop prop on a hydro,i have a 27cc sikk i am going to mod
the same way hope to get the rpm up around 18 + see what happens
i have an insane gen 3 hydro with a modified rear exhaust j&g from cc
race engines to build one serious piece of equipement my time is on
that at the moment,try those mods small changes at a time try jim boat
dock forum
and daves discount motors.com plenty of up grades for the sikk and
parts
cheers leon torquespeedracing
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