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Old 09-03-2007, 07:02 AM   #1
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Default Bov recirculation

Hey guys, I have a 99 turbo miata with the FM link piggy back system. It retains the mass air sensor and the bov is recirculated. I wanna vent the bov to atmosphere but the car doesnt run right if I do. Is there any way around this without effecting the performance of the vehicle?
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Old 09-03-2007, 10:51 AM   #2
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two of them, the big ones.
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Old 09-03-2007, 02:47 PM   #3
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blow through maf after the bov?
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Old 09-03-2007, 05:32 PM   #4
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Quote:
Originally Posted by hustler View Post
two of them, the big ones.
what can I say, I live my life a quarter mile at a time.........wait what?


But for real, is there any way of eliminating the maf?
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Old 09-03-2007, 05:57 PM   #5
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MS. AEM thingy.
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Old 09-03-2007, 06:15 PM   #6
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Any standalone or a EMU will do it.
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Old 09-03-2007, 09:38 PM   #7
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just buy motec.
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Old 09-03-2007, 09:55 PM   #8
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look dude, stop it already. I already have a motec system exhaust and a spoon engine. I just want to vent my bov.
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Old 09-03-2007, 09:56 PM   #9
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what you need is a couple sr20's. Or a 2jZ Or maybe just more noooozzzzz
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Old 09-04-2007, 06:09 PM   #10
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I like when car goes Phhffffffffft real loud like.


It's gonna take an upgraded ecu system. Standalone or piggyback.
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Old 09-04-2007, 06:55 PM   #11
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You may be able to vent it if your BOV completely seals. I may be wrong but the ECU takes into account a certain air volume and if that air is lost (VTA) it can really screw up your idle. I had a 2G DSM that I vented, and it stumbled like crazy, and I had a friend whose vented w/ no sweat. Either way, get a damn standalone and dont bother with a piggyback. MS ftw. (i'm biased).
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Old 09-04-2007, 06:59 PM   #12
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+1, just get a BOV that seals completely at idle.
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Old 09-05-2007, 12:06 AM   #13
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well my bov is a turbonetics adjustable, so theoretically I could tighten it down until its shut at idle, but then I have to take into consideration compressor surge. But the thing is, will the car stutter between shifts or will that affect anything? Sorry guys, I've built a few turbo hondas but they use MAP sensors which are way different.
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Old 09-05-2007, 12:29 AM   #14
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The car will run rich between shifts. You need to convert from a MAF to a MAP sensor, and that will require something like an MS or a Hydra or something that allows you to delete the MAF.

There is no other "proper" way to do it.
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Old 09-05-2007, 12:40 AM   #15
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Thank you, sir.
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Old 09-05-2007, 02:33 AM   #16
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Look at Apexi's Neo afc. I haven't played with one too much but it has a function like 'deceleration air'. I guess that's to allow a bov on maf.
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Old 09-05-2007, 09:35 AM   #17
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the Apexi neo thing is $200 cheaper than MS...gay.
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