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#1 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() Update: I have read the thread Dana answered questions on, but figured asking you guys to see if any "advancements" have been made since then one way or another.
OK guys, the only reason I ask this is because through my searches for the past 2 hours on turbobricks and on the web, I get conflicting viewpoints: What's the best option for my intercooled b21ft which will be running around 12 - 14 psi? BOV or CBV? Which would yield better response, which would be louder? Thank you for your time, and apologize in advance for "that same ****in' question again" Don't cut em off... I tried searching. Made me even more confused. From what I can gather, a BOV -MIGHT- be better due to no AMM, but still, I hear people saying they had issues. I'd like it "semi-loud" with the least potential for stalling or other issues. What are some types / brands under $100 suggested for my application? (I've got a 20% off coupon with eBay, and I'd like to buy one from there... if possible, point me to a good item) Grateful they are still hanging, - Rod
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Last edited by decalservice; 01-01-2009 at 03:22 AM.. |
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#2 |
uo ƃuıoƃ sʇɐɥʍ ˙˙˙sǝou ɥo
Join Date: Jun 2005
Location: Pleasant Hill, CA
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![]() BOV will always be louder because it vents to the atmosphere.
i wouldn't skimp on generic brand BOV's because they might leak, not hold boost, and not last as long. CBV's wont be as loud but i like them better because it wont rich spike when the air is vented. i know of some people who have had thier engines run pig rich to the point where they stall after a vent. i would get a CBV.. I'm getting this one..which is a forge. heres my thread about the CBV's http://forums.turbobricks.com/showthread.php?t=143327 what year is your car? it's not that a BOV will be better on a car without an AMM, it's cars with no AMMs run BOVs better than cars with AMMS.
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1984 760 Turbo- 740 wagon springs, IPD Sway bars, TurboXS HPBC @15 psi, 25x3x12 IC, Forge MotorSport DV, K&N cone + "ram air", IPD turbo cam, Dale's Gear advanced 6*, 90+ manifold (ported), MSD blaster3 Coil, Bilstien HDs, M46 swapped with stage 2 PP and 4 puck racing clutch, Rebuilt engine (http://forums.turbobricks.com/showthread.php?t=84732) ![]() ![]() Last edited by F1reBird; 01-01-2009 at 03:43 AM.. |
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#3 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() Gotcha. It's an '82, k-jet of course
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#4 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() What size is the outside diameter of the ic cold pipe on my 82? Maybe I should get off my ass and measure it =)
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#5 |
Board Member
Join Date: Jul 2007
Location: Brisbane, Australia
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![]() bov's on k-jet should be fine. It'd be pretty damn hard to get the bov in after the metering plate. Isnt there an article about bov's on k-jet?
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#6 |
uo ƃuıoƃ sʇɐɥʍ ˙˙˙sǝou ɥo
Join Date: Jun 2005
Location: Pleasant Hill, CA
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![]() ah K-jet... yea it should run a BOV just fine.
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#7 |
Board Member
![]() Join Date: Jun 2003
Location: PDX
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![]() bov, kjet, good to go....bah, im startin to hate my forge twin piston BOV....the bitch still causes some audible surging w my giant comp wheel...
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#8 |
Board Member
Join Date: Jun 2006
Location: Hollywood, CA
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![]() Another advantage of CBV is that it keeps the turbo wheel spinning while venting pressure, making it easier and faster to build up pressure again (i.e. useful when shifting).
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#9 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() Thanks guys!
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#10 |
Board Member
Join Date: Oct 2008
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![]() you need one of these
![]() http://www.turbowhistler.net/?gclid=...FQsQagodYlCDBw seriously though, cbv>bov |
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#11 |
Board Member
Join Date: Apr 2007
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![]() ROD
I ran a bov on my KJET car and it was terrible, it was a knock off though. That thing was open at idle, and my driveability was terrible. I would recommend a CBV, like a bosch 004 ![]() You want that air back into the system, because KJET AND b21S DO NOT LIKE DUMPING FUEL INTO THE CYLS BECAUSE A BOV BLEW OFF ALL THAT METERED AIR! my sh!t spiked super rich and it totally SUCKED oh, and you need to get an AIM account and use www.pidgin.im
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rofl |
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#12 |
Guest
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![]() No. Bosch 007 is the one that is desireable. (Comes stock on the cars in the VAG group such as VW, Audi, Skoda, Porsche)
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#13 |
Board Member
Join Date: Apr 2007
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#14 |
Board Member
Join Date: May 2007
Location: Republic of Texas
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![]() CBV FTW! And it's plenty loud without being obnoxious.
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#15 |
Board Member
Join Date: Apr 2007
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#16 | |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() Quote:
Armed with power of the Pidgin, I'm ready to annoy on a whole new level!!! J.K. man hit me up with the info to contact you... I have AIM, havent used it in a while though. I'll be on as rvr0004 for now. (aim) |
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#17 |
Board Member
Join Date: Apr 2007
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#18 |
Board Member
Join Date: Mar 2004
Location: New Jersey OC New York
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#19 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() forge 007 = bosch 004?
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#20 |
Stickin' it to the world!
Join Date: Oct 2008
Location: Austin, TX.
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![]() Hold up sons... In reality, if I leave the exhaust port on the CBV disconnected, it will in essence be a blow off valve, correct? I mean whats the difference?!?
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#21 |
Guest
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#22 |
is DeeWorks.ca
![]() Join Date: Aug 2006
Location: Sherbrooke, Qc
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![]() I think I got that same bov, I actually removed the second plastic piston because the preload on it is way too much. I was experiencing surge before the removal, I also e-mailed forge to let them know and he replied with a lesson on how bov works...
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94 944T - 16v turbo - 12,14@122 Lm7 5.3, S475, Ms3Pro, 4l80e - 10,36 @ 134 / 6,70 @ 107 www.deeworks.ca Need T5 Adapter? T5 Speedometer Plug? Gm Torque Converter Adapter? Freeze plug retainer? HE351 solenoid plug? Pm me! |
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#23 |
Board Member
![]() Join Date: Jun 2003
Location: PDX
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![]() oh yeah, the spring in mine also broke
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#24 |
is DeeWorks.ca
![]() Join Date: Aug 2006
Location: Sherbrooke, Qc
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![]() The second piston spring ? If you want one I still got mine laying somewhere :P
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#25 |
Board Member
![]() Join Date: Jun 2003
Location: PDX
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![]() the bigger one, mine was yellow..
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