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 Cheap noisy dump valve. (currently 5250 views) |
| Andy |
| Posted on: Saturday, February 10th, 2007, 9:21:11pm |
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| A lot of the BOVs seem to have a high pitch whistle which I really can't stand but as midgetsprite quite rightly says - each to their own. |
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| jaik |
| Posted on: Saturday, February 17th, 2007, 2:37:01pm |
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Well I've just been having a fiddle with my boost controller as shortening the pipes to it coupled with the new exhaust manifold has made the boost run 1 or 2 PSI higher than before and spotted a cork in the kitchen  It fits very tightly with enough stuck out to pull it out should i ever want/need to. It really does sound good, more akin to when you hear the pneumatic brakes on buses and trucks release. A "chshhhhhhh" kind of sound.
Went for a 15 minute spin and can't see any oil residue around the ABV outlet so far. The kids around here seem to love the sound at least (they've probably been watching too many Fast and the Furious films and think it's a Toyota Skyline GR-T or something). |
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| Andy |
| Posted on: Saturday, February 17th, 2007, 2:48:13pm |
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That's a good description of the sound, I've been trying to think of how to describe it!
And as for
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The kids around here seem to love the sound at least (they've probably been watching too many Fast and the Furious films and think it's a Toyota Skyline GR-T or something).
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Classic! |
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| loufred |
| Posted on: Thursday, May 3rd, 2007, 7:28:07pm |
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can someone please post a pic of the pipe that needs to be disconected and plugged up?
louie |
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| Andy |
| Posted on: Thursday, May 3rd, 2007, 7:33:14pm |
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| Andy |
| Posted on: Thursday, May 3rd, 2007, 7:33:55pm |
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| ABV circled in red. The arrow points to the hose which needs to be removed from the ABV and plugged. |
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| Barry |
| Posted on: Thursday, May 3rd, 2007, 8:32:24pm |
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Ah cool: I was going to ask this very question  . |
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| Andy |
| Posted on: Thursday, May 3rd, 2007, 8:33:52pm |
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| I hadn't realised I hadn't posted this photo in this thread earlier! |
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Reply: 47 - 140 |
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| loufred |
| Posted on: Thursday, May 3rd, 2007, 9:50:39pm |
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thanks andy, worked out that it was the pipe, sounds cool. only diffrence is that where it has the wider bore it lets all the air out in one go where as a after market dump valve releases it longer.
thats a cool strut, what make is it? |
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| Andy |
| Posted on: Thursday, May 3rd, 2007, 10:08:47pm |
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Depends what gear you are in and how much boost was being created as to how long it operates I've found.
My strut brace is the Suzuki Sport Type 2 one. |
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Reply: 49 - 140 |
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| theren_911 |
| Posted on: Saturday, May 5th, 2007, 5:07:57pm |
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| whats best to use to plug that pipe? Will an old plasic cork from a wine bottle do the trick?? |
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| Andy |
| Posted on: Saturday, May 5th, 2007, 5:12:06pm |
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| A plastic cork is ideal. |
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Reply: 51 - 140 |
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| theren_911 |
| Posted on: Saturday, May 5th, 2007, 5:14:03pm |
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Cool, I think I'll wait a few hours after consumption of the plonk before fiddling with my engine tho  |
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| Andy |
| Posted on: Saturday, May 5th, 2007, 5:14:45pm |
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| Probably wise! lol |
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Reply: 53 - 140 |
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| m88sdm |
| Posted on: Sunday, December 30th, 2007, 7:51:31pm |
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Hi,
I Have recently bought a lovely little cappo, and have been grinning since i bought it. However i don't think i have grinned as much after doing this little change. It sounds great! and it was free!!! Fantastic. I didn't really get dump vaules before, i thought they sounded naf, but know... Love it, great and free, what more could you ask for.
However i am far from an enginer, but does it effect power, performance and i prosume it isn't damaging????
Many thanks Steve |
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| jaik |
| Posted on: Sunday, December 30th, 2007, 7:56:01pm |
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Steve, the only downside you might notice is a light misting of oil in your engine bay. The air that gets blown out of the valve has a little oil in it from the turbo bearing.
Otherwise it won't do any harm at all |
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Reply: 55 - 140 |
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| Andy |
| Posted on: Sunday, December 30th, 2007, 9:22:19pm |
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| And any dump to atmosphere valve would do exactly the same for your £200+ |
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Reply: 56 - 140 |
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| jaik |
| Posted on: Sunday, December 30th, 2007, 10:05:18pm |
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| Let's be fair, Andy, Blitz and a few others do offer them with a tiny cone filter on which should catch some of the oil |
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| Andy |
| Posted on: Sunday, December 30th, 2007, 10:15:32pm |
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| Well there is that lol. Presumably it then eventually dribbles over the manifold |
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| hemanismyhero |
| Posted on: Sunday, December 30th, 2007, 10:20:05pm |
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| Does that means these engines should use a small taste of oil? |
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| Andy |
| Posted on: Sunday, December 30th, 2007, 10:54:28pm |
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| All engines use some oil but have to say my Capp uses virtually none. A standard Capp would divert this oil mist back into the engine. With a dump to atmosphere valve (including this pipe disconnection method) the amount of oil loss should still be minimal. |
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| hemanismyhero |
| Posted on: Sunday, December 30th, 2007, 11:05:08pm |
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| Was almost talking myself out of fitting my HKS dump valve! lol. |
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| theren_911 |
| Posted on: Monday, December 31st, 2007, 9:37:45am |
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is there any way to modify the standard BOV so it can have a fast option to be recirculating or to make whooosh noise?
I love it but the Mrs Whines and ruins the whooosh! Would be great to have an on off switch, or like I mentioned, a method to quick change the BOV |
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| jaik |
| Posted on: Monday, December 31st, 2007, 4:32:10pm |
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| You could do it with a couple of solenoids and a T-piece (in fact, a Y-piece would flow better). |
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| theren_911 |
| Posted on: Wednesday, January 2nd, 2008, 4:59:24pm |
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Quoted from jaik, posted Monday, December 31st, 2007, 4:32:10pm at here |
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You could do it with a couple of solenoids and a T-piece (in fact, a Y-piece would flow better).
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Sorry, I'm a bit dumb, I know what a Y piece is, and I basically understand what a solenoid is... but thats where my "expertise" finishes!
Could you be a little more specific, think laymens terms and then simplyfy that haha |
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| jaik |
| Posted on: Wednesday, January 2nd, 2008, 5:17:19pm |
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Here's a little diagram to A; show you the idea, and B; prove that I work at a design agency.
You would want to get two types of solenoid ideally. One which is open by default, and one which is closed. Then when you flick the switch, current is passed to them both to switch which is opened and closed. |
Last modified Wednesday, January 2nd, 2008, 5:18:20pm by jaik |
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| bob_g |
| Posted on: Wednesday, January 2nd, 2008, 6:15:30pm |
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| Another idea might be to use two stock BOVs, then switch the vacuum lines into them with a little solenoid? |
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| m88sdm |
| Posted on: Wednesday, January 2nd, 2008, 6:57:48pm |
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Thnaks for the info, I have just tried it and love the noise it makes. CAn't belive something so simple creates such a big grin!!!
The Idea with the soleroid is great. It would be very cool if you could switch it on/off.
Thanks for the help. |
Last modified Sunday, January 6th, 2008, 1:36:33am by m88sdm |
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| Andy |
| Posted on: Wednesday, January 2nd, 2008, 7:06:10pm |
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| I find it a much more satisfying sound to the likes of HKS etc which sound too high pitched in my opinion, although you can get inserts to change the sound. For me this method is better by far as it is completely free and can be reveresed in a matter of seconds. |
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| hemanismyhero |
| Posted on: Thursday, January 3rd, 2008, 11:28:07am |
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I love the high pitch sound of the hks! lol. Wish i had mine fitted! 
Right next friday (which is my next day off work) i'm going to get my exhaust and HKS Dump valve fitted!  |
Last modified Thursday, January 3rd, 2008, 11:30:19am by hemanismyhero |
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| Andy |
| Posted on: Thursday, January 3rd, 2008, 11:32:39am |
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“ |
Quoted from hemanismyhero, posted Thursday, January 3rd, 2008, 11:28:07am at here |
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I love the high pitch sound of the hks! lol. Wish i had mine fitted!
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As I said - in my opinion |
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| hemanismyhero |
| Posted on: Thursday, January 3rd, 2008, 11:54:42am |
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| theren_911 |
| Posted on: Thursday, January 3rd, 2008, 12:42:10pm |
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| capgun |
| Posted on: Thursday, January 3rd, 2008, 3:28:05pm |
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| If solenoids were too fiddly you could always adapt a choke cable from an old ar to do the job of the solenoid/s |
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| cabrio1969 |
| Posted on: Sunday, January 6th, 2008, 10:57:28pm |
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| demon-tweeks.co.uk do a dump valve that should do away with the need for any solenoid jiggery pokery. Its called a dual port dump valve and is made by turbosmart. it recirculates(quietly) under normal acceleration and vents to atmosphere(loud) under hard acceleration. mind you its £229.13. |
Last modified Sunday, January 6th, 2008, 10:58:59pm by cabrio1969 |
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| capgun |
| Posted on: Monday, January 7th, 2008, 2:27:03am |
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| My wallet would be burning after that! |
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| 01803770634@talktalk.net |
| Posted on: Tuesday, January 15th, 2008, 5:08:17pm |
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| Have done the free mod. We think it sounds ok. No oil loss just an oily smell and easy to put back. |
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| kawo |
| Posted on: Thursday, January 17th, 2008, 3:04:11pm |
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dear all~it seems my cappo is really having big problem.....
I had tried to do this free BOV and I failed.
It did not sing the song even the accel. pedal was on the floor for awhile before I lift my right leg.
Is my turbo not able to produce enough boost? I do not have a boost guage.
Or somewhere between the throttle and the BOV is leaking boost?
Or worst my turbo is already blown?
Moreover, will this be the reason for my poor fuel efficiency? |
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| skinner |
| Posted on: Thursday, January 17th, 2008, 3:45:05pm |
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I think you need to check how much boost you have with a gauge.
See if the waste gate is stuck open as well. |
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| kawo |
| Posted on: Thursday, January 17th, 2008, 3:47:12pm |
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| how to check the waste-gate? |
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Cappuccino Owners Club › FAQ › How to... › Cheap noisy dump valve. (Moderators: )
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