What hosing for catch can?

[thechief]

I'm helping my bro out with upgrading his evo. The induction kit he has bought (evo400 mafless) doesn't have any provision for the dv to recirculate or for the oil breather,. I'm going to have an extra 4" section with a take off welded onto the induction kit for the dv but instead of rerouting the oil breather to I'm going to install a catch can. I need 9mm ID tubing though, whats recommended to use?

BTW, the ecu he is going with is an AEM (plug and play), installed, supplied and mapped for £1300. If only something like this was available for vag?!

I know this is a seat site but there are some knowledgable guys here

360-370bhp for under £2k!!

 

[minimivic]

Is 9mm big enough? I'd use 20mm at least into a catch can.
Any automotive hose should work OK.

 

[WeeJase]

i'd use something silicone,so the internal is smooth,easier flow,plus less likely to perish.

 

[RALF]

9mm is going to be too small like already has been said you want something bigger like 15mm, unless the tank you bought has 9mm ends.

 

[thechief]

The outlet on the head is 9mm OD so there'd be no gain in using 15mm I'd assume as that'd be where the restriction is?

9mm is what is used on every install I've seen ao far, incase no one read its for an evo not a vag car