merckx Posted October 5, 2004 Share Posted October 5, 2004 Considering getting a BOV, cannot really afford one but I feel like treating myself yet again! After doing a search the HKS SSQV looks like the one to get . Are they worth the expense? Will it put an even bigger on my face when going for a drive? Cheers Quote Link to comment Share on other sites More sharing options...
Jake Posted October 5, 2004 Share Posted October 5, 2004 Only if you want your car sounding like a bus. I really don't get it with noisy BOVs. What's the point of them? Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted October 5, 2004 Share Posted October 5, 2004 ask chris wilson if you need one. i bought a blitz one for silly money and it is leaking and whistles abouve 2.5k revs i put the stock one back on and going to make a twin stock one. Quote Link to comment Share on other sites More sharing options...
merckx Posted October 5, 2004 Author Share Posted October 5, 2004 I really don't get it with noisy BOVs. What's the point of them? I suppose it could me a bit irritating after a while:( But they do appear to be very popular. ask chris wilson if you need one. i bought a blitz one for silly money and it is leaking and whistles abouve 2.5k revs I'm sure I can guess what Chris would say:) Might be better to spend the money on something that will make it go faster or look better instead! Quote Link to comment Share on other sites More sharing options...
Wez Posted October 7, 2004 Share Posted October 7, 2004 Just an idea here but isn`t a dump to atmosphere a waste of energy, would it not be better to use a recerc type dump valve which dumps the pressure back into the turbo inlet to help with spool during gear changes? Quote Link to comment Share on other sites More sharing options...
AJI Posted October 7, 2004 Share Posted October 7, 2004 wez : that's what the stock system does already (doesn't it?) Quote Link to comment Share on other sites More sharing options...
Nick Posted October 7, 2004 Share Posted October 7, 2004 If you want the noise, run around 1.2bar and have an aftermarket air intake then get the HKS SQV. If you run less boost or have the std airbox then you're going to be disappointed because you'll barely hear it. Like the intakes they do nothing except make a noise. Quote Link to comment Share on other sites More sharing options...
green_dragon Posted October 7, 2004 Share Posted October 7, 2004 merckx, I've got the HKS SSQV and a Blitz SUS filter fitted, and I think it sounds ace. I fitted the BOV after about 3 weeks owning the supe, and 7 months on it still makes me smile when you change gear next to pedestrians and make them jump. It makes different noises at different levels of boost too, on full boost dump, it gives an aggressive high pitched surge of air, but at low boost it a more sedate pssch. Some times it gives a psh psh psh psh noise - like a quiet external wastegate - which sounds cool. I would never have the car without it, obviously just my opinion so dont all:flame Dev me at once. Chris Quote Link to comment Share on other sites More sharing options...
Jake Posted October 7, 2004 Share Posted October 7, 2004 Originally posted by green_dragon I've got the HKS SSQV and a Blitz SUS filter fitted, and I think it sounds ace. 7 months on it still makes me smile when you change gear next to pedestrians and make them jump. I wonder if those pedestrians are all thinking "Hey! Cool!" What do you reckon? Quote Link to comment Share on other sites More sharing options...
Dragonball Posted October 7, 2004 Share Posted October 7, 2004 Originally posted by Jake I wonder if those pedestrians are all thinking "Hey! Cool!" What do you reckon? Not as bad as 'look at that silly old git driving that car' that I probably get!! Ah...midlife...bring it on! Quote Link to comment Share on other sites More sharing options...
Rajinder Posted October 9, 2004 Share Posted October 9, 2004 Yes it is definately worth it. I fitted the same one on my supra last week and it has made the car run much smoother and the turbos come on very smooth and controlled (it could just be me ). The sound is not that bad, although mine gets drowned by the noise from the induction kit. There is another accessory for about £ 15.00 and you get two fins which fits to SSQV. The gold makes the sound louder that the stock and the purple less. I took it out on a hundred mile trip to Leamington Spa touched about 150 mph no problems. Personally, money well spent. Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted October 10, 2004 Share Posted October 10, 2004 They're a bit of fun but won't make the car faster. If it makes you smile, do it! Quote Link to comment Share on other sites More sharing options...
SKI Posted October 11, 2004 Share Posted October 11, 2004 If you do a proper search you'll realise that BOVS are not good for your car at all. Quote Link to comment Share on other sites More sharing options...
green_dragon Posted October 11, 2004 Share Posted October 11, 2004 You sound like my dad!!!! Quote Link to comment Share on other sites More sharing options...
SKI Posted October 11, 2004 Share Posted October 11, 2004 When your car is running lean with black plumes of smoke oozing from the ass at every gear change and your engine gets shafted, post on here again and I will put you n touch with a good mechanic (that's not your dad) Chill son! Quote Link to comment Share on other sites More sharing options...
green_dragon Posted October 11, 2004 Share Posted October 11, 2004 That told me. lol Quote Link to comment Share on other sites More sharing options...
GeordieSteve Posted October 11, 2004 Share Posted October 11, 2004 Erm... I have a HKS SSQBOV here waiting to be fitted... WHY is it bad for the car? Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted October 12, 2004 Share Posted October 12, 2004 Originally posted by SKI When your car is running lean with black plumes of smoke oozing from the ass at every gear change and your engine gets shafted, post on here again and I will put you n touch with a good mechanic (that's not your dad) Chill son! I read Chris' post about this too, but know of no Supra thats had these side effects, do you know different? I've put one on mine.. sounds ok. The advice was (back in the day) that the BOV actually helps prevent surge on the turbo by venting to atmosphere... thus reducing the stress on them. If this has changed then let me know Steve, it was something about the UK specs having the MAF fuel controller, and because the BOV was venting to atmosphere it was confusing it, making it run lean (not good) between/after gear changes. I'm waiting for something similar to appear on the US forum about this, but havent seen anything and they've tuned the bollocks off them. Quote Link to comment Share on other sites More sharing options...
Dragonball Posted October 12, 2004 Share Posted October 12, 2004 Originally posted by SKI When your car is running lean with black plumes of smoke oozing from the ass at every gear change and your engine gets shafted, post on here again and I will put you n touch with a good mechanic (that's not your dad) Chill son! Woe...woe and thrice woe....! Not sure I would go THIS far m8...the guys at Toyota knew their stuff for sure...but not sure that you can attribute this much solely to to a BOV that dumps to atmosphere Loads have been running them with no ill effects for many many thousands of miles Quote Link to comment Share on other sites More sharing options...
SKI Posted October 12, 2004 Share Posted October 12, 2004 Both C.W and my G.F ganged up on me regarding the BOV, C.W said it would shaft my engine whereas my G.F simply stated that the wooshing noise would shaft our relationship... Solution BOV removed Quote Link to comment Share on other sites More sharing options...
SimonB Posted October 13, 2004 Share Posted October 13, 2004 To avoid any confusion, the problems people are talking about are with the UK car (or VVTi) which uses a MAF sensor which measures the flow of air going in. The problem is that when the dump valve dumps to atmosphere the MAF has already registered this air and so the ECU doesn't know that the air has gone somewhere other than the engine. It's not a problem on Jspecs with a MAP as this measures pressure, which will go down when the valve dumps. In theory there should be a slight advantage with an atmospheric valve, as the air that comes out is hot having been compressed by the turbos, and will therefore heat up the intake air if recirculated back into the intake. You're not going to notice it though. Quote Link to comment Share on other sites More sharing options...
Dragonball Posted October 13, 2004 Share Posted October 13, 2004 Originally posted by SKI Both C.W and my G.F ganged up on me regarding the BOV, C.W said it would shaft my engine whereas my G.F simply stated that the wooshing noise would shaft our relationship... Solution BOV removed So no blowing either way then? ...gets coats Quote Link to comment Share on other sites More sharing options...
Nick Posted October 13, 2004 Share Posted October 13, 2004 Originally posted by SimonB To avoid any confusion, the problems people are talking about are with the UK car (or VVTi) which uses a MAF sensor which measures the flow of air going in. The problem is that when the dump valve dumps to atmosphere the MAF has already registered this air and so the ECU doesn't know that the air has gone somewhere other than the engine. I've been assured by ChrisW that this is only a problem for UK Spec's, not the VVT-i. Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted October 13, 2004 Share Posted October 13, 2004 Well i think its a load of bollocks. I've had it dyno'd with it on and it shows no fuelling problems at all. And I refer to the US where they all have the same UK set up and I've not encountered any issue. Quote Link to comment Share on other sites More sharing options...
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