Crushed DSM bypass valve... [Archive] - SR20 Forum

: Crushed DSM bypass valve...


nismo94tuner
08-26-2007, 11:01 PM
I finally got around to crushing it. I know it wasn't completely necessary but I figured why not since it was off the car. I installed it and took the car for a drive later on and the sound was completely different. It now flutters but I am scared that its compressor surge. Is there a way to tell if its just the bypass valve or compressor surge? I am not trying to damage the turbo doing this but at 13psi it was holding great and blew off fine. I honestly think this sounds better than a lot of Greddy Type-S and HKS bov's that I have heard. Just checking to make sure that crushing it made it too stiff to not be opening and causing surge.:biggthump

swiss
08-26-2007, 11:04 PM
It's probably surge. :( Rent a vacuum gauge from an autoparts store and check it out.

nismo94tuner
08-26-2007, 11:06 PM
Aw man, haha. I had a feeling it might be surge. When I am really getting on it building a lot of boost it doesn't surge at all. Just lets off a loud wooooosh. When i'm just cruising through town or on the highway building about 2 pound of boost, it flutters. I'll have to try that and see.

totaled200ser
08-26-2007, 11:12 PM
i know you probably know this but you should have left it alone until you upgraded as it will hold 18-20 psi or so. how did you crush it? oh well they are cheap anyway. it sounds like it is working ok but i can't here the fluttering from here, oh oh wait there it is. lol, either way have someone take a look at it with a little more experiance and see what they say.
drew

nismo94tuner
08-26-2007, 11:14 PM
Lol. I know under WOT its great. I just don't want it to hurt the turbo by not opening to release just low boost.

t bags
08-26-2007, 11:16 PM
use a stronger vac line--i run mines seperate/or the big line that most peeps use for the carbon can.what did u use to crush it with?all it takes is a hammer and 2 good strikes

nismo94tuner
08-26-2007, 11:18 PM
I used a vice I have down in the basement. Just twisted it slowly to where the nipple for the vac is sitting right above the flat surface of the top.

t bags
08-26-2007, 11:36 PM
http://www.dsm.org/archives/1996/12/19961231.txt/29.html

6DSM4
08-26-2007, 11:39 PM
oh well they are cheap anyway.
1g dsm bov are a proven to be one of the best bov out there, I dont see how they are cheap. Anyhow, Bes are you sure you did not over crush it?

swiss
08-26-2007, 11:42 PM
1g dsm bov are a proven to be one of the best bov out there, I dont see how they are cheap. Anyhow, Bes are you sure you did not over crush it?

I think he meant inexpensive, not poor quality.

nismo94tuner
08-26-2007, 11:47 PM
1g dsm bov are a proven to be one of the best bov out there, I dont see how they are cheap. Anyhow, Bes are you sure you did not over crush it?

I'm pretty sure its crushed just right but I could be wrong. I can run out and snap a pic of it tomorrow.

nismo94tuner
08-26-2007, 11:49 PM
Mine looks basically like this. Barely even looks crushed.

http://www.beesandgoats.com/boostfaq/dsmbov.jpg

boostednx
08-27-2007, 10:26 AM
bes i wouldnt be worried all of the crushed dsm bovs that i have heard woosh at wot and flutter at low boost :biggthump

HkSBlueBird4u
08-27-2007, 10:30 AM
remove it bro.. save your car from to much gas

nismo94tuner
08-27-2007, 07:07 PM
Too much gas? Because you know i'm on it all the time to hear it blow off? Lol. I actually barely can hear it, the 3'' downpipe came free and I can't hear shittttt.:D

totaled200ser
08-27-2007, 10:00 PM
swiss is right i meant cheap as in you can go to a junkyard or get one from a dsm part out for very little money

6DSM4
08-27-2007, 10:44 PM
:D oh i see now ....