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Witchcraft!! I wonder what is involved in doing that? is it as simple as swapping heads side to side and new pistons?
The 1960s drag racers messed with ram air for a while. Remember the Dodge 440 Six Pac with the big scoop? The racers abandoned the idea because dyno tests showed that the horsepower gain from ram air was only in a very narrow range. On each side of that range there was a horsepower loss. Pressurized air boxes (which many bikes have now) give a slight boost across a much wider range.
Why?
Because they really enjoy dealing with the aftermath when the heads fall off the exhaust valves like they did when this absurd idea was tried in the early 1970's on a couple of endurance racers. The theory was that having the bellmouths on the carburettors pointing forward would impart some magical effect that would force more mixture into the cylinders. Needless to say it was bollocks and all that happened was the exhaust valves overheated and shed their heads due to lack of cooling.It's just another example of idiocy being trans generational and nobody doing any research on thier unoriginal, crackpot, ideas.Pete
This reverse head concept has been tried on vert twin Brit bikes also . Of course it decreases HP because there is a low pressure area in front of the intake area . Like many ideas , it might look cool , but doesn't work in the real world . Dusty
When I was a teenager I had an old 'Rizzato Califfone' 50cc 2-stroke Italian moped. It had a horizontal cylinder and a forward facing carb with a plastic cover that turned the intakes to the rear.I figured that removing the cover would allow air to be forced into the carb at 'speed' (really?) and the bike would make hundreds of horsepower. In reality it just popped and farted and only went half as fast as with the cover on....
Low pressure you say, Bernoulli ???
Dunno , not sure how a pasta brand plays in here Dusty
My half baked thought would have been that there would have been higher pressure due to the ram effect, but then Bernoulli's law says that the higher the air velocity, the lower the static pressure,(it's one of the reasons a wing works), so I'm clueless. Did not know about the pasta thing, now that IS interesting. Mmmmmmm, Pasta.
The effects of pressure are manifold . Dusty
If we effectively allow ourselves to be affected by the affectations of the effective manifold directions this thread , we may in fact become forever affected although effectively that will make no difference . (Did I keep that straight?) Dusty