My build
Not me filming, it was the owner of the bike the engine belongs to, who filmed it(and a dutch stole the vid and earned a lot of money on it)
It runs even harder now, but i have changed the dynosetup from performance trends to sportdevices so numbers aren´t comparable.
But we have run into problems, we need to modify the clutch as the one´s we tested can´t take the power.
We dynoed 68hp in new dynosoftware WITH slipping clutch.
I am impressed by the engine so far, NOTHING has happened to rotary assemble(crank,conrod,piston)
We ran with huge clutch problems low 8´s in quarter mile this summer, we ran about 30runs, no issues at all besides that clutch.
We actually run quite small carburetors(lectron downdraft 34mm)
We have a 38mm setup also, but we need to figure out the clutch first and make use of the power it produces as is first =)
At the very dynoday of 68hp we ran locked cvt to figure out how the powerband looked like.
The last pull of the day when i have freshened up the clutch and washed it with vinegar essence(old trick) it actually hold the clutch, for a while until the belt broke..
That pull just before the belt said goodbye the powerband was 13hp higher at the point where it happened.
So dreaming of that 13hp could be all through the whole powerband it might have been 81hp
And,, it runs HARD!!
Just need to dial it in, but covid has taken out a lot of races in Sweden this summer so we only had one to go to.
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