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Blow off valve testing, it really works!

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Old Oct 9, 2004 | 11:39 AM
  #196  
TheBigLubinsky's Avatar
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From: South FL
Finally found the sweet spot on my Worx tuning BOV. I set the spring as soft as possible and it idles like a charm. Very happy w/ the quality and drivability.
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Old Nov 1, 2004 | 07:15 AM
  #197  
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Ok, so I have the forge DV with the blue spring currently in. I'm running stock boost but really don't like the noise it's making. I have a red spring, green, and yellow. In order to make the sound less of a skreetch- which spring should I load in there and how many shims?

I've read most of these threads but couldn't find a conclusive answer to which spring will cause the least amount of purging.
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Old Nov 1, 2004 | 04:11 PM
  #198  
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If i add a blow-off valve, would this void my warranty? ive searched on the site and someone alrdy asked this, but no one responded. thanks
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Old Nov 5, 2004 | 11:23 PM
  #199  
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Originally Posted by Enyth
If i add a blow-off valve, would this void my warranty? ive searched on the site and someone alrdy asked this, but no one responded. thanks
The only way that it did not void my warrenty is because i had my mitsu. dealer install it
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Old Nov 5, 2004 | 11:26 PM
  #200  
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im not sure if anyone asked this yet but....when doing the single spring mod, does that get rid of the fluttering and give the BOV a chirp sound? example: fast and the furious Eclipse's blow off(Hated that movie haha)
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Old Nov 6, 2004 | 12:09 PM
  #201  
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The sound is not like a shirp at all... Sounds kind of like a horse doing that exhailing thing with it's lips lol... Honestly that's what it sounds like.. It's not a direct "swoosh"..

At this point I think it's ok after switching to the yellow spring but it still doesn't feel very smooth. I may try and sell it to someone who doesn't plan on modding thier car. Before the intake it was perfect. Once the intake went on it started to feel different.

I want an MR BOV.
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Old Nov 11, 2004 | 12:37 PM
  #202  
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Originally Posted by smp3000
The sound is not like a shirp at all... Sounds kind of like a horse doing that exhailing thing with it's lips lol... Honestly that's what it sounds like.. It's not a direct "swoosh"..
It seems to me as though your diverter valve is no longer functioning (*edit* it is no longer hooked up correctly *edit*). The distinctive "horse splutter" sound you describe is exactly the sound a turbo makes when compressed air is forced *back* through the compressor housing.
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Old Nov 11, 2004 | 12:39 PM
  #203  
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hmmm this is no good. I will put the stock one back on until I can get an MR.
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Old Nov 11, 2004 | 07:32 PM
  #204  
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From: Olathe, KS
Stock valve back on and even though boost leaks at WOT- It's at least not surging anymore. Feels much smoother and I spool faster.

It's not that the FORGE valve is bad you just have to find the right shim + spring combo for your mods. I was impatient and just bought an MR valve. The FORGE valve is up for sale on ebay.
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Old Nov 12, 2004 | 02:51 PM
  #205  
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just wondering... greddy type s have to nipples.. the big one on the upper part is for vacumm hose right? what bout the lower smaller and slightly long nipples does? i leave it uncapp would capping it better or uncap it?? wat it does? hope anyone could help@
thanks!!
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Old Feb 14, 2005 | 11:19 PM
  #206  
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Originally Posted by lil'evil_evo
I'm still a newbie to bov's. Can someone explain to me why my revs jump up while shifting? I know it has to do with the bov because it just started when I installed the Greddy type-s. At first I only turned the adjustment screw 3 full turns and it did not happen, but boost was not holding???? So I tried to tighten the screw and now the revs jump up only when getting on it. By the way I still don't hold boost. I have a Greddy profec b spec II so I know I need to mess around with the tuning on that as well. For now my concern is holding boost 20-21 psi and not having the revs jump. Any info would help thanks.
Anyone know what this problem is? I'm having the same problem with the 2 springs, I've just threw the 2nd spring back in, and it flutters but no bucking or kicking (i don't think it's surging) at low boost, and regular driving, but when I get on it (High Boost) i get the WHOOOSH, then I get very sharp high pitched sound for about 2 sec (and air going out). It holds boost like hell , solid 20PSI.

In between shifts, high boost, I get a rev jump of about 300RPM then it holds there in time for my other gear... lol , and my next gear pretty much kicks it down, All this while i hear the cool sharp high pitched sound (it'd actually be very helpful during a race)

I like how it is right now, but is this a bad sign? It's very convient, and the flutter is not loud at all.
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Old Mar 21, 2005 | 02:40 PM
  #207  
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I did the single spring greddy typeS mod explained here and it works great. Runs so much better than factory, no jerking or anything. Also holds boost great!
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Old Mar 21, 2005 | 03:04 PM
  #208  
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vandammy, i left mine uncapped
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Old Mar 28, 2005 | 11:44 AM
  #209  
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i just read this whole thread and my eyes are bleeding, I did the single spring mod and it works great, no more stumble.... u can see the pics of mine in the registry
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Old Oct 30, 2005 | 01:03 AM
  #210  
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After reading all these pages.....there needs to be a summary!
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