does anybody know what size the port is? when i installed my catch can i ended up using reducers to make everything fit but now i want to buy new nipples for my can thats the same size as the aos so i can get rid of the reducers. The only problem is i forgot what size the aos port is. thanks

 

I think it's 19mm (3/4") - maybe someone can confirm

 

I believe thats correct

 

iirc 3/4 was a little big

 

I think I got some 20mm hose for mine (couldn't get 19mm - 20mm was the smallest that would fit) and just clamped it down.

 

I just went out and measured one off my spare engine and it it 3/4 although i tried a piece of 3/4 hose and it felt loose.

 

The 3/4" hose you tried may have actually been 20mm instead of 19mm.

I find here (Australia) if you ask for 3/4", you tend to get 20mm.

 

it was, i wonder if this is the right one http://www.lindseyracing.com/mm5/mer...de=GENSILICONE