Guys, I just installed a Blitz BO valve but it is not openening fast enough and the comp. is surging a bit. The vac. hose is a bit long because of mounting the valve near the front of the drivers side. The vac. source is from the upper intake. Any suggestions, I doubt it is normal.

Thanks

 

Guys any help would be great. I just shortened the silicon hose to make it as short as possible. Did not help. I have a older Blitz mounted after the Greddy elbow on the IC pipe. Could this be a racing spring? I lubed the brass cup with grease and it helped a bit. The turbo will surge and then the valve opens for about 1-2 seconds and snap shut. Do I need a new bov?

Thanks

 

You need to loosen the spring on the top almost all the way out and then try it. I have this same problem with this blowoff valve if the spring is not spun almost all the way out.

Ben

1991 RX7 Turbo
11.9@117mph

 

The screw is all the way out, well almost like you said. maybe a larger dia. silicon hose might help like a 3.5 mm instead of 3.2 mm