Big B NRG
Well, this is awkward
Hello Big B,
I appreciate all info.
The engine is a 90 cc from the factory 52 mm bore x 42 mm stroke liquid cooled cast iron cylinder.
When you mention that the cases need to be machined for the crank, can you be more specific? What needs to be machined and why?
Anywhere near 18-20 HP would be a huge step up for us.
Does anyone know of a source here in the US for the Fabrizi products?
Thanks again all
Cast iron cylinder?? I thought the FHT kit was alu+nicasil.
If you use a 50cc engine, the stroke is 39.2. Fitting a 42 mm stroke crank, you will need more space in that 50cc engine to mount the 42 mm stroke.
So it should be made atleast 1.4 mm bigger. ((42-39.2= (2.8)/2)
Otherwise you crank will not fit.
That 90cc FHT kit should do atleast 20 HP. But the finishing quality issn't so super. A 2fast kit is cheaper and the quality is super.
Take a look at these pix (took them from other forum):
Crank + cylinder is around 900 dollar like said and makes 78cc.
Still this kit puts out 24 hp or more easy!