2 replies to this topic

[merther]

This may seem a silly question, but what is the purpose of a catch tank for the breather pipes? What is the difference between a pipe going straight out into air rather than going into a tank to then go back out again? Does it help with fume smell or something?
Thanks

[unburntfuelinthemorning]

It lets the fumes out but traps the liquid.

[nicklouse]

this is another race cars do it so it must be good thing. venting direct to air makes for a smelly car and a messy engine bay. this is not permitted on race cars and they have to have catch tanks with a specified volume (read rules and regs) so that they can contain any oil displaced by the engine so there is nothing spilled on the track.

 

pointless on a road car you may as well take advantage of the  lower engine pressure created by original system that also burn of the vapour in the engine.