View Poll Results: BEST BOV(s) in your opinion?
Forge
69
12.64%
HKS SSQ
141
25.82%
APEXi
6
1.10%
Tial
36
6.59%
GREDDY typeS
139
25.46%
Turbo XS H-34
27
4.95%
Blitz
25
4.58%
1G, Stock, or MR bypass valve
130
23.81%
Multiple Choice Poll. Voters: 546. You may not vote on this poll
BOV poll:
Originally Posted by 2k4EvoVIII
How are you gonna say HKS sounds like ***? Have you heard all the different inserts you can get for the HKS SSQV? I highly doubt it. Have you heard the HKS Racing Type II BOV?? And agian like it was said above different strokes for different folls! Oh ya and for most of us the sound is just half the story. If you really think about it its more important that the BOV is a high quality BOV instead of the way it sounds. I would rather my BOV sound like S*** then my turbo go out becouse i have a good sounding BOV. Food for thought! 
Last edited by Trail Slide; Jul 14, 2004 at 10:50 PM.
yeah, the stocker leaks even at stock boost levels.. mine had a nice crack in it when I took it out too.. And for everyone running stock MAF sensors.. ALWAYS RECIRCULATE.. if you have speed density or a blowthrough setup, it doesn't matter anything will work as long as its adjustable for your needs..
Originally Posted by MalibuJack
yeah, the stocker leaks even at stock boost levels.. mine had a nice crack in it when I took it out too.. And for everyone running stock MAF sensors.. ALWAYS RECIRCULATE.. if you have speed density or a blowthrough setup, it doesn't matter anything will work as long as its adjustable for your needs..
My stocker developed an increasingly bad leak and now won't hold over 20 PSI at redline. You can actually see where it starts to leak on my dyno graph.
Evolving Member
Joined: May 2004
Posts: 163
Likes: 0
From: Houston/The Woodlands
What does the Turbo XS Racing Bypass valve H34 sound like? How does it perform? I was gonna get the HKS SSQV but after reading up on some of their flaws I am concidering the H34 now.
Evolving Member
Joined: Jun 2003
Posts: 136
Likes: 0
From: Phoenix, AZ
Yeah I think mine (stock) is leaking. Had the Forge, but I could not ever seem to find the right adjustment to prevent fluttering and it was a pain to adjust. I also noticed alot of wear with alot of grey dust in the synch lube. Gave it away.
Thinking of the GFB Stealth FX BOV or the MR version, thoughts guys? HKS seems like alot of extras you have to use for just a BOV/DV?
Thinking of the GFB Stealth FX BOV or the MR version, thoughts guys? HKS seems like alot of extras you have to use for just a BOV/DV?
Last edited by Capt_Crunch; Jul 22, 2004 at 09:10 PM.
Newbie
Joined: Apr 2003
Posts: 31
Likes: 0
From: BROOKLYN NYC
Tial has a couple problems, 1 you have to know the valve spring psi for your setup. I had a problems with the tial BOV opening at idle, this confused the stock computer (unmetered air flow after MAF sensor) causing rough idle and stalling during coasting to a stop. 2 with this design if the valve leaks, their is no spring tension adjustment. 3 cost of higher psi spring if you did not get it right the first time and PRICE of Tial BOV is about the same if not more than the HKS SSQ 
. IF your SSQ is working why change it.
. IF your SSQ is working why change it.
The EVO MR bov works great for me. Definitely a big improvement over the stock plastic unit. Greddy unit works good with that single spring mod.. while most people w/ HKS SSQV are having problems, I just can't comment on it because I've never tried it on my EVO.
