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The mkiv Supra Owners Club

uk spec, recirculating valve


smithy23

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From the very helpful FAQ section i have determined that an atmospheric bov will not do the job. Just having a quick look around but im struggling to find a recirculating type valve. Ill be running 1.3 bar(18.54psi i think) shortly and the valve on the car is 13 years old, dont think its a bad idea to replace it seen as its on the limit. Does anyone know where to get one?

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Smithy23,

 

I bought mine off Martin a few months ago and I swear he must have delivered it personally to my house as it took only 24hrs to arrive after the order was placed.

 

Bloody good service mate!!:thumbs:

 

Don't worry about practical application, it looks good in the bay and that's all that counts!!

 

We have them in stock.

 

HKS Super sequential Valve + Recirculating fitting.

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So the valve is still exiting the excess boost back into the system so i wont get the 'whooooosh' effect, as i would if it vented to the outside air? Uk rich does yours recirculate or is does it vent to the outside world?

 

its atmospheric matey, the way it should be :eyebrows:

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wow im really stirring a wasps nest here, so yours has never smoked like its running rich, rich(see what ive done there!). And your plugs show no signs of running lean?Dont know wether i want the noise or not of a bov, cant make my mind up! But it will be a recirculating valve, not chancing these new iridium plugs falling into, well i dont even want to say it... So the only thing id be gaining with the valve is the certainty that its not leaking(over the standard one anyway), there is no performance or longetivity gains, because the turbine doesnt stop spinning between changes anyway?? right? no induction kit on, just a k and n element

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The mian problem you'll have on a UK car with an atmos BOV is stalling when you release the throttle, doesnt happen every time it usually waits til its most embaressing.

 

Af for sounding like a feista - what are you on? a recirc will make next to no noise and have you been out and compared both on the same car?

 

A BOV is a functional part of the engine not some chav toy like you seem to think it is. If you wish to pay twice the money for something then by all means go for a jap BOV, if you want something that does the jobs look closer to home. Big names usually means big prices and not always good quality or value.

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my plugs never look as if im running lean, but it quite heavily tuned now (see my garage)

 

when i was running stock turbo's, no probs from the ssqv at all

 

they don't really sound like a "normal" bov, trust me once you hear the noise of a ssqv, you will want one my freind !

 

and stirring is fine with me !, its all a matter of tatse/pesonal choice

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So for half the price of the hks ssqv i could get a bailey one that will do the same thing? Is one available with a recirculating kit or is it a matter of just replacing the original one, in exactly the same place, to the same old hoses?

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I have heard some UK's dont stall, I have no idea why, mine does with both Manual and auto ECU's. Not a problem for me though as the e-manage takes care of it.

 

The bailey ones come as recirc or non recirc, you will have to check the hose sizes thats all you should need to change.

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  • 4 weeks later...

Hi Guys,

 

This looks a good place to post this!

 

My HKS SS BOV was fine on the old hybrid setup but since I got the car back with the single fitted and the BOV welded onto my new FMIC pipework, it stalls occasionally when I lift off the throttle.

 

In conjunction with that, I have the AEM AFR gauge fitted and where it normally runs around 14/15 odd when driving along, when I lift off the accelerator it drops to 10 which is the lowest level (green bit on the gauge).

 

Mine's a UK TT Auto and I remember people saying you couldn't use the BOV that circulates to the air due to the MAF sensor (or is it MAP?!) which the UK cars have.

 

Any suggestions or tests I can do to see if this is the cause of the problem, and, goes 10 mean lean or rich as I thought it was lean which doesn't make sense as it should go rich shouldn't it if the principal is as it was described to me?!

 

Any and all help greatly appreciated!!

 

All the best,

 

Pete :)

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Right but that is the UK TT Manual cars which are not experiencing any stalling issues, what about the Auto version?!

 

Anyone elsa gone single UK TT Auto with an atmospheric BOV having stalling problems occasionally??

 

As I say with the hybrids it wasn't an issue it's only since I went single it seems to happen occasionally and am trying to find a fix as it can be a bit worrying when it cuts and I lose the steering and brake assist!!!!!!!! ;) :D

 

Cheers,

 

Pete :)

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If the DV is setup correctly it shouldn't have driveability issues.

I drove mine for a while with the SSQV and it was generally fine.

 

Absolutely no technical merit on a stock(ish) car, mind you. Stock is more than adequate until you try to flow over 450bhp worth of air

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