Blow off valve
- Thread starter Andreas
- Start date
Ian Turgeon
Cascading Inspiration
Are you asking if it would be benificial to mount a BOV that would stay open?
Andreas
New member
no, that would be bad 
Because my english is not the best, I guess I didnt write what i actual ment. I descride insted. When the gears shift the blow off valve makes loud noise (lika rally cars). What I've heard it's not just fitting one off those blow off valves with out doing other adjustments. Hmmm..does that makes it some how clearer what I men...I'm not sure Sorry.
/Andreas
Because my english is not the best, I guess I didnt write what i actual ment. I descride insted. When the gears shift the blow off valve makes loud noise (lika rally cars). What I've heard it's not just fitting one off those blow off valves with out doing other adjustments. Hmmm..does that makes it some how clearer what I men...I'm not sure
Sorry./Andreas
SY2932
Administrator
Hmm lemme see, you want to know if you install a blow off valve on your typhoon if you wil have to make any "adjustments"? The short answer is "NO" you won't. A blow off valve is designed to prevent turbo boost from stalling (slowing down) the compressor blades of the turbo when the throttle body blade(s) close. That is why you hear the "PSST" between shifts on a vehicle with a manual transmission. However being that we have automatic transmissions, the only time you will hear the BOV vent boost is when you let off the gas.
The only "adjustment" that has to be made is some BOV's have a provision for adjusting the pressure level that they will open up. I have a HKS SS BOV on my syclone and I have mine adjusted to open only at high pressure. Beyond that, the only other "adjustments" are getting a "hard pipe" (aluminum or steel) to go between the turbo and intercooler. Cutting a hole in it to weld the mounting flange to. And then connecting it to a vacuum source to operate the BOV properly. HTH's
http://huryde.station180.com/gallery/view_photo.php?set_albumName=mikecampbellakaSY2932&id=acz
Mike Campbell
The only "adjustment" that has to be made is some BOV's have a provision for adjusting the pressure level that they will open up. I have a HKS SS BOV on my syclone and I have mine adjusted to open only at high pressure. Beyond that, the only other "adjustments" are getting a "hard pipe" (aluminum or steel) to go between the turbo and intercooler. Cutting a hole in it to weld the mounting flange to. And then connecting it to a vacuum source to operate the BOV properly. HTH's
http://huryde.station180.com/gallery/view_photo.php?set_albumName=mikecampbellakaSY2932&id=acz
Mike Campbell