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?

 

two of them, the big ones.

 

blow through maf after the bov?

 

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?

 

MS. AEM thingy.

 

Any standalone or a EMU will do it.

 

just buy motec.

 

look dude, stop it already. I already have a motec system exhaust and a spoon engine. I just want to vent my bov.

 

what you need is a couple sr20's. Or a 2jZ Or maybe just more noooozzzzz

 

I like when car goes Phhffffffffft real loud like.


It's gonna take an upgraded ecu system. Standalone or piggyback.

 

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).

 

+1, just get a BOV that seals completely at idle.

 

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.

 

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.

 

Thank you, sir.

 

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.

 

the Apexi neo thing is $200 cheaper than MS...gay.