Air Intake Pipe - Do i need the oil breather, and the other one, wtf? ROBT??

[gregclarks]

Firstly, from the throttle body what is the best length for the intake tube before a cone filter - does it make a difference, can i achieve a pulsing or ram effect?

Secondly, i am replacing the rubber 'gay' hose with a stainless 'sexy' steel one, do i have to incorporate the oil breather? can i just whack a universal small KN filter onto it? And what is the hose that connects closer to the throttle body, into the rubber intake, about 20mm in diameter - what is that? It has thrown loads of oil into the old rubber pipe. it comes from the box infront of the fuel rail.

Can i bosch one out before inters - we shall see.

Answers on a postcard, thanks in advance, PS loved the MaxPower related 1.4L thread, haha

 

[cordobabrendy]

The oil breather pipe is replaced with a filter on the pipercross kits for the 16v, I had a 10 inch stainless pipe on my cordoba and although it sounded mighty fine it never went higher than the usual 156bhp on the rr.

 

[gregclarks]

I think i may end up ordering one of the Dynatwist XLs from Badger Bill, how much are they going for now, better than a pipercross induction kit i take it?

I can deal with the oil breather pipe but what is this oterh one, is it a crank case breather pipe? i dont know...

Didnt realise a metal pipe would change the sound - thats exciting.

 

[cordobabrendy]

on the 16v there is the airbox with two pipes entering the intake, one is the oil breather and the other is an airflow (map?) sensor.

 

[gregclarks]

No this leaves the fuel rail and enters near the throttle body in a push fit hose