Thread: Hiclone for Disco tdi1

I had a hiclone fitted to my Lada Niva. Not sure if it made any difference to power or economy but it did lift idle speed by about 200 - 300 rpm. No other changes to motor made or noticed.

Gary

Originally Posted by AKW

I also have recorded every ltr of fuel that has gone in to it.

Andrew

Not if you fuelled up from service station bowsers you didnt

Service station flow rates are so inaccurate its scary...

Combine this with different temp/humidity/altitude different road temp, journey times, driving conditions (1 slight delay changes everything) and the results can be so different its startling.

I had a hiclone fitted to my Lada Niva. Not sure if it made any difference to power or economy but it did lift idle speed by about 200 - 300 rpm. No other changes to motor made or noticed.

You introduced an air leak when you put it in.LOL.

Seriously though the theory is valid. Mercedes has put little blades in the inlet of their V6 just before each inlet which introduce turbulence into the air stream at low revs and retract at high revs. I have always thought that if you could get 8 and put them in the trumpets of a V8 injection it could do something.
Re EGR- I read recently that there is a new reason for EGR that supplements the NOx reduction in petrol engines.
That is that by introducing a proportion of spent gases whcih are 'inert' to the inlet charge at light throttle, the blade angle of the throttle can be increased and pumping losses against the closed throttle reduced, thus improving fuel economy.

This is a good article which includes reference to the MB V6.

Fuel saving gadgets - a professional engineer's view

Regards Philip A

I put them in my 300tdi 90..... It made turbo sound different..... Thats it, fuel the same, power the same. I took them out cos I was too embarrassed to keep them in. I am so ashamed of my self. In the one hundred years of production of the internal combustion engine, motorsport and the need for ever increasing efficiency with billions of dollars spent, not one hiclone device was ever fitted to an engine.

BTW there is a cylonic filter thing in the air box of most Land Rovers after 99. Except mine!

Originally Posted by PhilipA

Mercedes has put little blades in the inlet of their V6 just before each inlet which introduce turbulence into the air stream at low revs and retract at high revs.

As you said, they retract at higher revs, where the air should be completely turbulent, and therefore the blades will make little, no difference to the air stream.

Also, Mercedes would have probably used months of human and computational time to design the device specifically for the engine - optimised it using CFD, etc... The chance that a one-size-fits all device fitted in random locations in the intake ducting could do anything similar is somewhat comical.

I will state that it did have a mild affect on my fuel consumption, but that might be all in my mind causing me to be lighter in the right foot. I fitted one to a S1 V8. Not sure if it would suit diesel vehicle.

I probably wouldn't spend the $140 on one again....

Originally Posted by 400HPONGAS

TimNZ , is your invention Copywrited ? Sheer utter Genius !!!!!

The patient is pending!