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Recirculating valve (Plumb back BOV) 180sx CA18DET


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Hoping for some help.

As the title says, I would like to install a recirculating valve (Plumb back BOV) on a 180sx CA18DET.

If at all possible, something stock from a similar model.

Does anyone know what model(s) I should be looking at and possible places to purchase same?

I believe the S15 may have had this type of arrangement.

 

Thanks in advance.

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CAs didn't come stock from the factory with one, I believe you'd have to get some fabrication done to the intake in order to recirculate the air vented from the intercooler piping back into the intake. Could be wrong though so someone feel free to correct me.

 

If you want it for the sound, why not just get an atmo-venting one?

 

Alf

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Hey Andy.

The CAs didnt come with a bov from factory, you'll have to get a intercooler pipe made up with another little pipe sticking off the side to attach the bov too. I just used a silicon hose to hook it up to the pipe coming out of my turbo on the right side of the engine (looking at it) and then Td it into one of the vac lines near the front of the car.

 

Bovs are cheap enough that its not really worth it to cut corners on, you can get an atmo one if you want but its probably one of the fastest ways to get yellow stickered, other wise you'll need to get some pipes made up that let you reticulate the bov back into your intake.

 

If you get a sheetty bov it might leak when on boost and thats gonna cause you some annoying problems.

 

Hope that helps

 

-Carl

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Could I ask why you want to put a stock bov on your car?

 

Thanks for all the replies,

I probably wasn't clear enough in my initial question.

I don't necessarily want a stock BOV.

What I'm looking for is the associated stock plumb back piping/hosing from a Nissan turbo.

I understand the CA18DET didn't come with this item.

I'm unsure which models used this arrangement.

What I'm trying to find out is which models did and then I can look at getting some and grafting them in.

Once I've got the right piping/hosing I will get a decent aftermarket plumb back BOV.

This thing has an atmo BOV at the moment, it's going before the son starts on his P's.

I'm not spending the next year or more of my life helping him get yellows off it.

That's why I'd like it to look as stock as possible when 'they' lift the bonnet.

 

Thanks again.

Edited by andrew1959
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Why not just take the BOV off completely then? It's probably not necessary - as demonstrated by the fact they don't come with one from the factory.

 

If you have a hole in the intercooler piping just go down to clarks rubber, get a rubber chair end and use that to blank the hole off. Remember to hose clamp it though.

 

Alf

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Why not just take the BOV off completely then? It's probably not necessary - as demonstrated by the fact they don't come with one from the factory.

 

If you have a hole in the intercooler piping just go down to clarks rubber, get a rubber chair end and use that to blank the hole off. Remember to hose clamp it though.

 

Alf

He'll get madd flutterz too.

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Why not just take the BOV off completely then? Alf

 

I'm an old petrol head :)

The car definitely performs/accelerates after gear changes better with a BOV.

And I have a tendency to take things apart, modify and put them back together.

Keeps me out of the pub.

I could obviously just remove the existing valve and leave it at that, but, that's

not my intention at this stage.

 

Thanks.

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  • 2 weeks later...

It looks like I've found what gear is required to fit the factory type recirculating valve (BOV) to the 180sx.

Apparently, any of the S13's or 180's that were fitted with an SR20DET from factory had this arrangement (1991 on?).

I think I've located a factory charge air cooler but, it's missing the hoses as shown in the diagram.

So, does anyone have a complete factory unit they want to get rid of or alternatively, just the 2 hoses?

 

Thanks,

 

Andy

post-10157-1276657209_thumb.jpg

Edited by andrew1959
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It looks like I've found what gear is required to fit the factory type recirculating valve (BOV) to the 180sx.

Apparently, any of the S13's or 180's that were fitted with an SR20DET from factory had this arrangement (1991 on?).

I think I've located a factory charge air cooler but, it's missing the hoses as shown in the diagram.

So, does anyone have a complete factory unit they want to get rid of or alternatively, just the 2 hoses?

 

Thanks,

 

Andy

 

 

I have the top hose lying around somewhere. dont think it will fit the stock ca turbo inlet tho

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Just do what I did mate. Get a HKS SSQV BOV. They sell the recirculation kit for it for $30 online. Not difficult to fit it up after that. Just a matter of finding the right hose size. If Im not wrong its 1" at one end and 1.25" at the other.

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Just do what I did mate. Get a HKS SSQV BOV. They sell the recirculation kit for it for $30 online. Not difficult to fit it up after that. Just a matter of finding the right hose size. If Im not wrong its 1" at one end and 1.25" at the other.

 

I could do, but I'm trying to keep it 'stock' looking.

If at all possible, I'd like it all hidden away.

If I can fit the standard SR20DET SMIC, I'll change the BOV to a better unit and still

have it recirculate through stock piping (hopefully anyway).

I've sourced the cooler, now I just need the piping.

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