[ajsr]

Dr_Snapid wrote:

stocker wrote:

Your Example of a Coke Bottle Is Flawed.

Dr_Snapid wrote:

Grab an empty coke bottle. Fill with water. Now empty it as fast as you can.


The fastest way is to invert and give the bottle a strong swirl. The rotating water comes out faster than any other method.

Place a Valve infront of the exit of the coke bottle and restrict the Flow of water. You will Get Eddy Currents in the water which will naturally fight the progression of water through the restricted entry, without redesigning the Exit point (or entry point which ever way you wish too look at it) To Minimise the Eddy current your Swirly water is a fruitless attempt at a fast Exit (intake plenum) or Entry (to the Combustion chamber)

Pressure Is the way to improve fuel economy

I didnt really follow any of that, sorry. The exit is already restricted, much like a valve. Its a classic bottleneck... Literally.
I was using the example to demonstrate that rotating fluid may pass through a restriction faster than non rotating in certain circumstances. Im not suggesting hiclones arent snake oil, or that they are, just thought it was interesting.

I dont actually know if a hiclone spins although i suspect it doesnt, it has vanes that direct the flow into a spiral?

Although having just thought about it, i think the coke bottle works because the vortex allows air back into the bottle... This doesnt apply in the case of a hiclone.

Didnt mean to hijack the topic OP

but have you taken into account the vaccuum created as the water leaves the bottle??
the reason it flows better when swirled is the centrfical forces push the water to the outside of the bottle allowing air to enter and the water to leave faser due to the lower vaccuum in the bottle.
in an engine this is not the case, all the air is moving in the same direction

[Dr_Snapid]

Yeah thats what i aluded to in my last post

[Dr_Snapid]

Anyway, to be honest, id love some sort of evidence either way.

even the great peter brock had some funny ideas about getting more power from an engine, so i can live with having tried a few weird things myself

i would not try a hiclone, i cant see enough chance of it working to spend the money.

[Chop]

AIR RAZOR

http://www.ebay.com.au/itm/Suzuki-Grand ... 35bba748f9

[Dr_Snapid]

Haha see the 25% milage claim is the giveaway

An engine would have to be terribly inefficient to have that sort of gain there to be had, no matter how far out the mods.