I am weird...PlatinumZealot wrote: ↑03 Nov 2017, 05:47That is the thing though, turbine blades don't work like aeroplane wing profiles. That is a weird sort of thinking.godlameroso wrote: ↑02 Nov 2017, 05:23I was thinking 74 to 88mm, less blades doesn't always mean more flow as you can make larger blades, the area of the space between the blades can be the same with 3 4 5 6 7 8 or 9 blades. If we think of each blade as an aerofoil you can easily see the effect of larger blades, in the same way you see the effect of a larger wing. Do you want a bunch of small wings or a few larger ones, you have to find the right compromise.PlatinumZealot wrote: ↑02 Nov 2017, 04:14
Going buy power output maybe the wheel is about 80 mm inducer and 70 mm exducer... Less blades mean less surface area and less obstruction for more flow (more top end) however efficiency drops. They would use trial and error i guess.
The compressor wheel might have a loop hole. Honda could have made an air box with an adjustable " bullet" shape protruding into the turbine to tune the air flow charecteristics between races. The intake pipe to the turbine is free to change right?
Of course you're right they're not air plane wings, only similarity being they still follow the same rules of exploiting pressure differentials to do work.