Thread: HiClone in 300 Tdi

Originally Posted by disconut

Look at a prop driven Aircraft during take off on a wet day. You will actually see the vortex (vortesies),behind the wing. (best one is the C130 Hercules), Lots of power mind you! A Hiclone could never do that.

Trev.

the old prop fighters (P51, Spitfire, et al) would ground loop if full opposite rudder wasn't used on takeoff. I believe it was a combination torque reaction and prop wash spiralling around the fuselage and hitting the rudder

Hi all
sorry to disagree with the masses, but I have a couple of Hiclones in the 130/300tdi and I believe they make a big difference.

Along with the hiclones, I hade the air intake line from the snorkle to the air-box enlarged and also had a new pipe made to go from the turbo to the intercooler. (I posted a thread a year or 2 ago about it)

Basically at the end of the day, alot more bottom end torque and better towing.

We also have a s2 disco td5, the td5 has more get-up and go, but the 130 (with the 300tdi) tows much better than it.

Can give more info if required!!

Cheers

Andrew

Thanks Andrew, more info on personal experience would be appreciated. I know HiClones are contentious products, and I've heard arguments for & against. I just want to know about personal / actual experience with them. If you like to post your results, that would be appreciated, or you can PM me if you don't want to enter into an online argument

Michael2

I have tried a Hiclone in a 3.9 92 Rangie and found no change. I still have it .
When you think about it, in a petrol engine it is placed before the throttle blade. Seeing the throttle blade is juuuust cracked most of the time, its hard to see how it possibly could create swirl in the inlet manifold. I reckon if you could get 8 little ones for the trumpets they would work, but at what cost? Most engines from the 60s on have offset inlet ports to encourage a swirl into the combustion chamber. The Rover V8 even has this feature.

However a diesel does not have a throttle so the swirl may be maintained to the ports depending on the engine. However resistance to air flow would increase ( because the cross section of the inlet pipe will diminish)so high end power may not be so good.

The theory is sound. The latest Mercedes V6 has little movable blades in the inlet manifold to create turbulence just before the ports. These only engage at light throttle.
Regards Philip A

Andrew,
All your changes appear to have been made together. Have you had it on a Dyno, then removed just the Hi Clones? It would be interesting to see what effect the Hi Clones actually make to your engine.

Trev.
PS Not doubting your increase in power, but just what difference did the Hi Clones actually make.

I am a fan of the Hiclone. had one on my Nissan and it did make a difference. I was advised to put 4 into the Disco, 2 before and 2 after the turbo.
They offer a money back offer if not 100% satisfied so what do you have to lose by trying. Then you can let us know how you went.
I often wonder if all the people who say they tried them and that they did not make a difference if they were installed correctly, If fitted backwards they do not work.

Gee I reckon it would take quite a while to recoup the $720 (or probably more now) for 4 hiclones , in increased fuel economy.
Regards Philip A

I'm no expert so excuse me if I'm talking out of my @r$3 hear but would using hiclones after the turbo cause the same effect as a difuser in a wind tunnel (straightening out the air therefore the next hiclone would have the same effect on the air as the turbo?) I realise the air is compressed to a certain extent by the turbo so fitting a hiclone or two after would slow down the air and have an adverse effect on the compression of the air

Crap or not thats my theory anyway