Craycraft yfz 450?
#21
#22
Craycraft yfz 450?
depends on how long the two are racing, and if the yfz is "uncorked" but stock. (meaning baffle removed) Top speed, that 686 I would think would get a yfz. I dont know, never done it. But as far as a race "to" the top speed, the yfz should pull the raptor. Thats my opinion.
#23
Craycraft yfz 450?
I crunched some numbers to see what you’ll need to get 70Hp form the YFZ.
I assumed the following. compression ration 13:1, Altitude Sea level, Volumetric efficiency 100% and displacement 475 cc. Lets assume this can be done, this motor have to rev to 10 000 RPM plus to make this sort of power. Most likely it will need to do 11 000 RPM if the volumetric efficiency is not 100%.
I assumed the following. compression ration 13:1, Altitude Sea level, Volumetric efficiency 100% and displacement 475 cc. Lets assume this can be done, this motor have to rev to 10 000 RPM plus to make this sort of power. Most likely it will need to do 11 000 RPM if the volumetric efficiency is not 100%.
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