SHO and Flex convert to vent to atmosphere with factory blow off valves

[Johnbigdog]

Pull out the recirculation valve and a visual inspect should tell you something.

 

[Creep]

After doing this, does getting out of the hole seem real hissy, like, excessively hissy?

 

[Creep]

Answered my own question, BOV had tear in the diaphragm.

 

[skyshadow07]

I'm sure this has been previously speculated on a post from 2013 BUT, do you guy think the elimination of the recirculation BOV's reduces intake temps? My hypothesis is that the air being recirculated is fairly hot when mixing with the fresh intake air.

 

[Johnbigdog]

Considering the recirculation valves only operate when the throttle is closed to prevent compressor stall, I dont think the gains are going to do much since they will close as soon as you step on it again.

The wastegate are what regulate boost over all.

 

[skyshadow07]

Maybe I miss wrote, I didn't have a confusion on how the system worked. I was suggesting that the 110-120 degree charged air is being pushed (blown off) into the pre-turbo ambient 80-90 degree air, mixing with it and causing it to heat up. I know this is for a short period of time but would contribute to overall heat soak of the system. As well, even though this happens during closed throttle, the pulse is not at the throttle. It will reach the throttle when it is open.

 

[Johnbigdog]

Well, the recirculated air is pre cac. The compressed air that will be heated before the cac will be minimal and then run through the cac. Will there be some heat, yes.

Will it afect the performance THAT much. I dunno.

Sorry for not understanding your question.