http://www.ecotekplc.com/

i thought the idea was to get the air into the engine as smoothly as possible, not to give it turbulence :confused:

AFAIK you do want as much air as possible getting into the intake smoothly, but for the 'burn' it's best to have a little turbulance. This mixes up the fuel droplets better in the air, and leads to a more even flame spread inside the cylinder when it fires.

 

Suzuki bikes even had an acronym for their system called TSCC (Twin Swirl Combustion Chamber)

 

Then again it may well be a pile of old shite!:D

I was of the impression that if the air is too smooth it causes a problem, IIRC it messes up the MAF reading, one of the mods used to say about putting a strip of gaffa tape over the middle of the intake to create turbulence (not blocking it off obviously)

Originally posted by x-biker

AFAIK you do want as much air as possible getting into the intake smoothly, but for the 'burn' it's best to have a little turbulance. This mixes up the fuel droplets better in the air, and leads to a more even flame spread inside the cylinder when it fires.

 

Suzuki bikes even had an acronym for their system called TSCC (Twin Swirl Combustion Chamber)

 

Then again it may well be a pile of old shite!:D

 

That worked on creating vortices (creating a smoother faster airflow, to 'cram' more air in) as opposed to *turbulence*, I think the buzz word department at ecotek either got their shit wrong, or they produce a shit product. ;)

 

I have seen an air intake boxes that create vortices to get more air in bla bla bla

Its all about the bernoulli equation ;)

You need turbulance in the intake air flow to better mix the fuel and air. If it was laminar you'd end up with the 'outside' of the air stream having no fuel in it other than what diffused across as it entered the cylinder. Either that or there'd be rich and lean areas all across it.

The geometry of the ports is usually also set up to direct the flow into the cylinder at an angle to encourage it to 'swirl' around and mix better.

As the air speed increases flow will always go turbulent anyway regardless. I've never done any calc's on the Z's intake system but I'd imagine the amount of air going through there at more than light throttle will be enough to go past laminar

You think a vortex flow is laminar?

Need to read yr post better, but for the flow to be laminar the intake would have to be about 2m dia. to get the required amount of air.

A vortex flow is turbulent, and you can calculate the vortex flow better...so you know, almost exactly what its going to do.