1/2 VW horse power

[Pilotjkl]

I'm building an engine using the Betterhalf plans, 92x69 according to plans will give me about 30hp,
I see Hummel sells a 32hp and a 37hp engine my question is what is the bore and stroke on these engines?
John

[Sam Buchanan]

I'm building an engine using the Betterhalf plans, 92x69 according to plans will give me about 30hp,
I see Hummel sells a 32hp and a 37hp engine my question is what is the bore and stroke on these engines?
John

All the specs are on the Hummel Engines website:

[Pilotjkl]

Thanks Sam, I totally overlooked the spec link on the Hummel home page, what makes the Betterhalf 30hp and the Hummel 32hp when they are both 92x69?

Thanks
John

[Sam Buchanan]

Thanks Sam, I totally overlooked the spec link on the Hummel home page, what makes the Betterhalf 30hp and the Hummel 32hp when they are both 92x69?

Thanks
John

Changing the second digit in the horsepower number??? 

[Pilotjkl]

Thanks Sam, I totally overlooked the spec link on the Hummel home page, what makes the Betterhalf 30hp and the Hummel 32hp when they are both 92x69?

Thanks
John

Changing the second digit in the horsepower number???  

Got it;)
Thanks