PDA

View Full Version : Bypass valve - what direction?


kobe 8
05-22-2006, 04:34 PM
Searched but it would "time-out" or "server busy".

Anyways, my bypass valve was defected so I bought the Strat Hyperboost Hx. I forgot to mark it so I don't know what section goes where.

Is this install correct: the section opposite the nipple (inlet) goes toward the throttle body/intake manifold. This is the section where I can push with my finger & it opens up. The other section (right angle) goes toward the thermoplastic tube. That sound right?

I've installed both ways but couldn't tell any difference...both idle 20-21hg

Thanks....
bimmerboy328i
05-22-2006, 04:44 PM
I think that is correct. How is the Hyperboost working for you? Notice any difference between it and the Bosch BPV?
kobe 8
05-22-2006, 04:51 PM
I think that is correct. How is the Hyperboost working for you? Notice any difference between it and the Bosch BPV?

Thanks...I like it much better than the original Bosch valve...I don't hear any "loud" noises, just noticed that boost comes way faster than before :) Power is noticeable too, on the buttdyno....
bimmerboy328i
05-22-2006, 04:56 PM
I think I need to pick one of these up. I think my Bosch is starting to end it's life.
M3Jokster
05-22-2006, 06:23 PM
Is this what you mean? click on photo

http://f5.putfile.com/5/14118185963-thumb.jpg (http://putfile.com/pic.php?pic=5/14118185963.jpg&s=f5)
paul e
05-22-2006, 07:53 PM
Is this what you mean? click on photo

http://f5.putfile.com/5/14118185963-thumb.jpg (http://putfile.com/pic.php?pic=5/14118185963.jpg&s=f5)

Yes, that looks right.. The flat face of the piston faces the intake flow, and the side of the piston faces the backflow to the thermoplastic intake. Damn, that looks so much smaller than my Hyperboost, yours looks no larger than the plastic bosch unit which the best thing i can say about it is its nice and Tiny! :D
bimmerboy328i
05-23-2006, 12:00 AM
Is that the compact?
kobe 8
05-23-2006, 12:16 PM
Is that the compact?
Yes, that's the compact Hx