oil catch can

[Guest Speedo]

Hi guys thinking of buying a oil catch can..I know it separate oil and moisture...but does it improve performance or is it to protect the turbo???????? is it impt to get one??????

How much is it roughly worth??????

[blind_elk]

Do you want an oil catch can or an oil-air separator?

An oil catch can vents to atmosphere (and therefore is 'technically' illegal), while the separator basically inserts into the crankcase ventilation system.

Both are there to prevent oil vapour getting into the induction stream (the oil vapour lowers the effective octane of the charge).

If you want a catch can, I have one that's designed to sit behind the battery in a R32 GTSt.

[b2barker]

If you want a seperator, just feed the line between the valve cover and the intake through a box stuffed with coarse steel wool. See Autospeed's first and second write ups on this.

[Guest INASNT]

wheres a good place on a r33 to place a s/s 1?

my friend can make me 1 for $30.