My i20N

[i_twenty_N]

The crank case outlet on the cam cover has 17,8mm diameter.

The inlet of the short OEM piping which has an other hose connected that goes on the fitting on the alloy turbo inlet has 15mm diameter.

So on the catch can inlet I use the 19mm fitting and the 16mm fitting on the outlet of the can.

It is also possible to take direct the inlet fitting on the turbo inlet. But I haven't measured it!

 

[YNWaN]

That’s great info - many thanks. I plan to do as you have and take the pipe to the turbo pipe as you have done

 

[YNWaN]

Okay, I’ve taken the plunge and ordered some bits from that supplier of all things aftermarket - Aliexpress. But before we go through the bits I’ve gone for let me explain my thought process. The primary problem I see is separating the oil from the air. Some rely on a metallic gauze and some rely on just a perforated metal baffle. Basic designs just have an input and output tube. The horizontal baffle you see on some designs is primarily to stop (or discourage anyway) any collected oil from slopping about under braking, cornering or acceleration. So, I’ve chosen a design which causes the air to pass through a spiral and this should significantly increase surface area and encourage oil separation. It also has a vertical and horizontal baffle and a dipstick. Also, it comes with a bracket which I’m hoping I can modify - some bending and cutting - to make it work with my suggested position. The pipe I’ve ordered is reinforced by an internal wire braid to reduce the chance of collapse. Oh, I’ve also ordered a stainless steel 19mm to 16mm reducer. This is a very expensive catch can by AliExpress standards so I’ve currently spent a massive £140.00 - I will need to order some clips too.

 

[YNWaN]

Oh, I might also have to buy some heat shielding for where the pipes pass close to the turbo.

I do like the Speed Engineering solution but it will be expensive by the time I’ve paid import duties in the U.K. - probably £400.00 when all is done. Also, I have a question mark over the 3D printed parts. An engine bay is not a friendly environment but they will probably be fine - it’s really the cost that’s the issue for me - oh, and the method of filtering.

 

[YNWaN]

To celebrate our recent burst of nice weather I’ve given my car a good clean and taken this picture.

 

[YNWaN]

Ai did this with the picture: