Hiclone thingy !!!

**Ralf_the_RR** · 28th January 2007, 05:29 PM

OK, I'm not an expert, but the concept of the Hiclone is to swirl the AIR.
Not the air/fuel.
If the air is swirled, then more of it is ingested.
More air, more oxygen, bigger bang.

Sounds good

However, us poor folk that run carbies (and this probably applies to injected systems) have a thing called a butterfly. It's a big flap that controls the amount of airflow into the engine.
So the swirl generated by the hiclone is distorted by the butterfly.

Just think of how much pedal you use at 100kmh on the highway. Not much.
So the butterfly is hardly open, so the swirl is destroyed.

WAFTAM

Diesels - well that's a different story

ak · 28th January 2007, 06:16 PM

Hiclone,

I saw an ad on TV this afternoon. I can't believe people are still buying enough of them for the company to stay in business let alone afford to advertise them on TV.

**BigJon** · 28th January 2007, 06:47 PM

I see the ad several times most mornings during "Sunrise" on Ch 7. I see they are using Land Rovers in the ad. I wonder why.

**DiscoTDI** · 28th January 2007, 07:55 PM

Has anyone here actually tried it and had the power outputs compared before and after because I have heard from people who have had them installed and have had an immediate change in power and economy plus I have heard from lots of people who have installed them themselves and said they have not made a difference. I have also known people with different brands of vehicle who have been into the supplier and they have been turned away saying that it will do nothing for there model.

Not trying to rain on anyones parade, I am just interested if this is from he said she said or if it has been proven

**Blknight.aus** · 28th January 2007, 08:43 PM

on a new motor it does squidly, Proven... there was a heap of exposays on abc from the investigators into "fuel saving devices" grab a copy of mythbusters and they go on to tell you why lots of fuel savers wont work

While they dont debunk the hyclone the theory applies.

**Turtle61** · 29th January 2007, 06:52 AM

My thoughts - not proven by any scientific means - would be that on modern engines the system is already designed, engineered and tested for optimum performance and air flow. So any devices of that type would do nothing if not hinder already good system. On older style motors such the great and powerful

2 1/4 LR diesel a device such as Hiclone may contribute to better engine 'breathing' by allowing the air to swirl and travel better.

The only way to prove their claims would be by independant power and torque test with and without Hiclone on various vehicles.

Any volunteers?

**dobbo** · 29th January 2007, 07:20 AM

Originally Posted by Pedro_The_Swift

Hi Sly,,

you can hope for around 14L per 100kays on the highway,,

probably 20 around town,,

gas will be a little more,,

What pulling a horsefloat?

**Pedro_The_Swift** · 29th January 2007, 07:27 AM

Originally Posted by Sly

Does any one have any litre per km (fuel or gas ) results from there own vehicles ?
Thats towing and non towing?

make more sense now Dobbo?

as for towing,,

pick a number between 1 and 100

**dobbo** · 29th January 2007, 07:33 AM

Originally Posted by Pedro_The_Swift

make more sense now Dobbo?

as for towing,,

pick a number between 1 and 100

With fuel consumption like that I'd leave the float at home put the car in neutral and rig up a sulkie, get the fleabags to earn their keep for a change. Especially since over an average weekend of eventing the rider gets about 15minutes of riding, however the driver averages about 24hours of drinking.

**isuzurover** · 29th January 2007, 12:47 PM

Originally Posted by Ralf_the_RR

OK, I'm not an expert, but the concept of the Hiclone is to swirl the AIR.
...
If the air is swirled, then more of it is ingested.

Says who? I am quite sure that the extra pressure drop that hiclones create in the ducting mean that any improvement in the flow field (technical term for what the air stremlines look like) is COMPLETELY negated (or even detrimentally effected). Furthermore - I highly doubt that any changes they make to the flow field would be stable even for a short period of time. In most intakes (especially at high revs), the flow would be likely be turbulent, which would mean that 100% mixing of the air would occur, and a hiclone would do nothing other than obstruct flow.

And fitting them to a turbocharged engine is even further insanity.

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