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08-20-2012, 07:01 PM | #1 |
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Ess 535 recirculating valve...
Hey guys thinking of going boost. But i like to hear the sound. I was told you can plug the hose to make the car sound like a whistling or what not sound. I was wondering if anyone has done this. Let me know please and videos would be nice !
-Trevor
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08-20-2012, 10:53 PM | #3 |
Id rather be boating...
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08-20-2012, 11:09 PM | #4 |
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08-21-2012, 09:06 AM | #6 |
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if you're buying boost for the BOV sound, you are def a ricer. But to answer your question, the M3 has no MAF sensor so you really don't need to recirculate the air back into the intake (look at AA setup, one BOV and one Bypass valve). Different valves make different pitched noises (HKS SSQV, TIAL, etc.) but it will never sound like a turbo setup would. You would just need to change the flange on the pipe/manifold and you can run any BOV you want. The HKS Super Sequential is very loud and high pitched whereas others make a whooosh noise when throttle is closed.
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08-21-2012, 01:03 PM | #7 |
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FAIL!!!!
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08-21-2012, 01:12 PM | #8 |
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08-21-2012, 01:27 PM | #9 |
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08-21-2012, 01:30 PM | #10 |
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Check 0:42 of this vid. I think this is the sound you want. It's tightie's - yeah ^ this guy - he has a Gintani blower and I'm not sure of the BOV but I understand it may be adapted to an ESS kit.
http://www.m3post.com/forums/showthread.php?t=728911 I like the sound as well so I guess that makes me a ricer
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08-21-2012, 01:35 PM | #11 |
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for those who are missing out on this fun filled video |
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08-30-2012, 08:35 AM | #13 | |
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08-30-2012, 10:12 AM | #14 | |
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To me, I think it's best to stick with the whatever setup ESS has tried and tested. Not good to deviate from tested setups unless there is something that requires it. I assume you meant wastegate not wasted gate? Since it's a supercharged car, the blower is driven by the engine and not by a turbine, negating the use for a wastegate. A wastegate is used on turbo cars to regulate turbine speed, and thus to limit the amount of boost that the turbo is producing. A supercharger will make X boost at Y RPM since it's driven directly off the crankshaft and has no direct coorelation between exhaust flow and boost pressure. You probably meant to refer to a blow-off or by-pass valve. I am not too familiar with ESS's hardware setup, only the software programming required to run a supercharger. The sound that you're probably chasing is the sound of a blow off valve, which is commonly used on turbo applications. The ESS S/C uses a by-pass valve, which recirculates the air back into the intake system instead of to atmosphere. Although you can definitely hear a bypass valve actuate (more pronounced at higher boost levels), it doesn't have that extremely loud "PSSSH" sound that a blow off valve does because it doesn't vent that air to atmosphere. Changing a car setup for a by-pass valve to a blow off valve is certainly not recommended as you can cause a number of issues related to air metering or expected absolute pressure. |
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08-30-2012, 11:10 AM | #15 | |
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The change is not permanent. Simply cap off the intake and let the BV vent to atmosphere and see if this is up your alley. If you don't like it, simply revert back. |
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08-30-2012, 11:38 AM | #16 | |
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On a Maf car yes it may cause driveability problems when venting to atmosphere. On our cars this doesn't matter as they're is no Maf sensor expecting to read that air. You can either vent it or recirculate it back into the intake. Theres also nothing wrong with changing the bov flange to run a diff valve |
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08-30-2012, 12:21 PM | #17 | |
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Last edited by BPMSport; 08-30-2012 at 12:27 PM.. |
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08-30-2012, 03:14 PM | #18 | |
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not entirely true. The issue lies with MAF based setups as the ECU is "expecting" to see a certain volume of air. when a BOV vents to the atmosphere it creates a false reading as the ECU must adapt to compensate for the non-metered air. What matters is where the readings take place. On a MAP setup you're venting the BOV prior to the intake tract and the air was never accounted for to begin with and will work fine. There is more to it, but I don't feel like typing anymore. To the OP, do some reading first as a wastegate is on turbo cars to control boost levels and a SC car using a combo of pulleys on the compressor and crank to create certain boost levels You need to try diff BOV to see what sound you're looking for. Tial valves sound awesome and the HKS SSQV is more of a high pitched noise. Should be easy to just change the flange on the blower manifold. |
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08-30-2012, 03:16 PM | #19 | |
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