Hi all,

I have decided to change the diverter valve's on my car as I have just purchased it and don't know the last time they were don, I open up the hood of my car to see the below picture.



Now one is not the same as the other, so which one is incorrect.

Also one of the braided hoses is split, picture below.



How badly has this been effecting my turbos?

Thanks

 

the one on the right is in the proper (factory) orientation. It is my understanding that either way is acceptable and have heard some claim that upside down/backward gives some sort of improvement. In thinking about how the system works I can't logically determine why one way should work any better than the other. The vacuum line pulls the valve open and allows the pressure to vent/circulate. The only difference being in "upside down" orientation the pressure is against the side of the valve possibly holding boost pressure longer as it would take more vacuum to get the valve to open.


-not an expert

 

Thanks for the quick reply, I am replacing these with a pair of 710's, and will be replacing the braided hose. Will the fact I have driven a few hundred miles on the hose's in there current condition have done any damage to my turbo's?

Thanks

 

No it hasn't.
Do not put them on upside down, air can push past them under hard boost because all that is holding the boost back is a little flap of rubber.