Join Date: Sep 2007
Location: Ontario, Canada
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I Run the Turbosmart Dual port which is 50/50 recirc/atmospheric ... 2 buddies of mine are mechanics for Subaru Canada's Rally team and both of them run different BOVs. I had discussed all the BOV issues that are talked about on the forums and their response was pretty clear. They say that it doesnt matter what style of BOV you use as long as the ECU has been flashed for that setup.(i.e. If you run a fully recirc BOV then it should not affect anything, however, if you run a full atmospheric BOV then you would need to change fuel mapping so that between shifts it does not run rich/lean). As for the Popping sound ... I've never heard my car make any sort of popping except for the odd backfire (which can be smoothed out with some minor adjustments to the BOV).
As well, like I said they both run Aftermarket BOVs on their cars ... one has '06WRX STI running HKS SSQV with mild tuning, the other runs a '00 2.5 RS with EJ25 Swap and Turbosmart RFL(which by the way definatly lives up to its name!) and a very Aggressive tuning.
I know the bov questions have been beaten to shit but i couldnt find an answer to this question..
People say that the BOV on a wrx is bad because it needs to recirculate the air, and a BOV doesnt allow it (specifically the one i want, hks ssqv) But ive read a few places on the forum that having an ECU upgrade to your car will make everything else ok..
Is this true? How much do the ECU's run for?
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