88LE Posted February 21, 2016 Share Posted February 21, 2016 Just read the following in the Supra Glossary: Cons: If you have a UK car, an atmospheric BOV can confuse the ECU because they use a MAF airflow sensor which is ahead of the BOV. This sensor registers that a certain amount of air is flowing in, so the ECU reacts accordingly by supplying the correct amount of fuel. That air then gets vented by the BOV, so the engine runs very rich. This creates two problems – one, the car may stall if the throttle doesn’t come back on, two, if the throttle does come back on the ECU is trying to compensate for an over-richness and may lean the mix off to undesirable levels, potentially causing detonation. The j spec cars have a manifold pressure sensor and don't suffer from this problem. Is it really that dangerous? Quote Link to comment Share on other sites More sharing options...
JackyBoi Posted February 21, 2016 Share Posted February 21, 2016 Dangerous, maybe not, but it will effect the afr Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 22, 2016 Share Posted February 22, 2016 And it will sound shit. But as above not dangerous. Quote Link to comment Share on other sites More sharing options...
Burna Posted February 22, 2016 Share Posted February 22, 2016 If I remember correctly, you can fit the HKS BOV with the recirc kit to a UK car. Quote Link to comment Share on other sites More sharing options...
Westy Posted February 22, 2016 Share Posted February 22, 2016 As stated above. Do not fit a vent to atmosphere due to the MAF.....it's the same on the later VVTi model engines. Quote Link to comment Share on other sites More sharing options...
Tyson Posted February 22, 2016 Share Posted February 22, 2016 I'm assuming a re circ won't make a noise ? Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 23, 2016 Share Posted February 23, 2016 A stock recirc valve makes a lovely and really satisfying sound with an induction kit imo, I assume a recirc bov will just be louder Quote Link to comment Share on other sites More sharing options...
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