i was wondering if anyone has pulled their diverter valve and put a block off and went to a external bov? i put a bov on and disconnected the vaccum line to the oem diverter valve and lost power like i couldnt get all my rpms up. any suggestions? i believe my stock one is leaking but with no boost gauge cant really tell, and where can i get a gauge pod for my s40 2007...

 

Go here and ask your questions...
Swedespeed Forums - S40 & V50 (2005-Current))

 

Why would you send someone to another forum? Is this one not good? Or is the other known as the best?

 

There is a cool forum but there is barely any traffic that comes through this forum compared to the others. Swedespeed gets A LOT of traffic specifically for the 2004.5 and up S40/V50's. Including dealer Tech's and people are pushing the tuning limits of what the P1 Volvo's can do.

For this question specifically, There have been a few guys that have gone with an atmospheric BOV and they could better answer the OP's question. I haven't seen anybody here go that route as of yet.

I'd recommend every enthusiast be a member at as many forums that are relevant to their car.