I have a Tial Q 50mm BOV and need to know what vacuum line sizes you used and what vacuum port is being used. The air fitting that came with the BOV is huge and I can't find any way to get it into a vacuum port on the manifold. Help me out please. Thanks in advance.

 

Didn't use any of the stock nipples. Probably best to drill one out, or drill a new hole post TB - and tap. Expect you'll use a 1/8"npt to 1/4" outlet. If the engine is healthy, you might find the installed spring is too light too - might be able to shim it, but went up one in the rate here.

 

6mm hose works perfectly, use the large nipple on the front of the UIM (the one used for the stock PCV valve).

 

Alright thanks Rich, I'll go look for some hose in that size then.

 

You may have to lube the hose up with a bit of lubricant (like saliva, lol) but it'll go on and stay firmly.