[pete]

[QUOTE=Ghenghis;2372

Some people dimpled their entire intake like the surface of a golf ball. Dimples on a golf ball are there to reduce it's wake as it moves through the air so they fly straight, a large wake causes irregular turbulence causing a sphere to change direction. Jury is out on that method, unsure if you'd see any difference over roughing up the intake surface, intake air isn't exactly moving around a sphere. I suppose you could dimple your choke plate...

Keeping the heat in your exhaust flow results in a higher velocity which has a scavenging effect on the next exhaust cycle. Wrap those exhaust pipes and smooth out those burrs!

I'm tired now.[/QUOTE]

It's called the "Magnus effect"... only comes into play when the sphere is spinning..
is why a tennis soccer player or baseball pitcher can turn the ball in flight...
it produces a low & high pressure area on opisite sides of the sphere .. high pressure side pushes the sphere into the low pressure side turning the sphere in flight.. also why muskets & canons had unrifled
barrels to stop the musket ball spinning 'turning in flight"
they used this force to power a ship... if intrerested google "flettener rotor"

nature knows best..... sharks have a rough skin for this very reason
it traps a thin layer of water that makes the shark very smooth & slipery..

exhuast wrap... hotter the exhuast gasses the thiner they are so they can travel
faster...





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