Well, need inputs - Currently plumbing a 502 chevy and a S-480 "clone" : For street legal reasons I need to use a recirculating BPV - the problem is the plumbing as this is a rear bed mounted turbo in a 74 C10 Chevy truck, Thinking maybe to mount the BPV somewhere in the middle between turbo and throttle body - Vacuum line would be a "semi rigid" Nylon 10 mm hose (pipe ?) suitable for Vacuum
Australian road rules sucks....... After extensive "Googling" have not yet seen any Rear mounted recirculating installations !

Any suggestions much appreciated.......

 

You’ll have to run a short length of pipe with an air filter to make this work. Basically run it from the charge side of the turbo near the turbo to the short length of pipe with the air filter on it. Make sure your air filter is large enough so you don’t damage the turbo.

 

Am I totally missing something here, or couldn't you just mount it in the charge pipe near the turbo, and recirculate back to the turbo inlet.

 

This ^^^^^^

 

Oh - did not explain very well did I ?

I am concerned with distance between intake manifold vacuum and the bpv - it's a long distance - nearly 10 feet - wondering how the response time (Lag) of the bpv will be - hence I'm hoping the relatively large ID 10 mm (3/8) semi rigid "hose" will somehow help the "lag" Maybe I'm totally wrong ?
The BPV is a Turbosmart Big Bubba with a 2 inch return line

 

I wouldnt sweat it that much. You might get some VL turbo dose, but thats basically harmless

 

That’s what I was getting at

 

Set it up like Mnlx,tbird and I said and you won’t have more than afoot of hose used

 

He needs a reference line from a post throttle source so it'll have to be quite long. Use typically sized line. Large volume will only slow response.