Where to hook up BYPASS valve on e36???

[SinCity328]

I was wondering if anyone could tell me where to hook a universal bypass valve to a e36, i have it on the pipe from my supercharger to the throttle body, but i don't know where to hook the line (needs vacume only at idle or when decellerating)???

Thanks,
Maurice

[hamann1000]

The bypass valve is located right underneath the discharge tube on my car.

[SinCity328]

Right, but i meant the small vacume line that hooks from the valve to somewhere on the engine???

[Stricklybmw]

best place to pull vacum is from the fuel presure regulator even for a boost gauage hope that helps