Everybodywildou

iTrader: (32)

Has anyone done this? If not, can it be done safely without a retune? Or would it cause you car to run lean?

05Z33

iTrader: (11)

Are you talking about recirculating it into the intake for the blower? The problem I see here would be that you're recirculating warm air into the blower intake. Maybe if the bypass valve was located after the intercooler it would be better. Performance wise I see no benefit to doing this, unless all you want to do is silence the BPV. I've seeing mustangs setup like that, but I don't know the reason for it.

rx7/350z

iTrader: (6)

the only place you could recirc it to would be back into the air filter and this would have no effect on a/f ratio. putting the air back in on the positive pressure side of the blower wouldn't do anything.

Everybodywildou

iTrader: (32)

Thats actually exactly what I wanted to do. I'm not really looking at this in a performance aspect but more so to quiet it a little and hopefully get rid of that aircraft noise.

Everybodywildou

iTrader: (32)

So it's ill advised to recirculate back into the charge pipe right?

05Z33

iTrader: (11)

Then I believe this would work for you. I just would rather have the BPV located after the intercooler just to keep the blower intake temp down. If you add an intake pipe to your blower, and run it into the front bumper. Then relocate the BPV to the otherside; you could connect it all alot easier.

str8dum1

iTrader: (11)

Since we use a blow thru (push thru) MAf setup, you can return the air to the intake anywhere before the MAF.

And if you are tuned using a MAP sensor, anywhere before the throttle body is ok.

350Z400rwhp

iTrader: (4)

If you did a custom cold air intake for your Vortech you could have a flange welded on to it and run the air from your BPV to this flange. All you would need is some flex pipe and some silicone couplers. Turn the BPV so it faces the drivers side of the car to get a more direct route. I have even thought of putting in an electronic cut-out so that I can have the aircraft sound for fun and quiet things down for when I just drive the car around.

Everybodywildou

iTrader: (32)

I might just reroute it directly back into the charge pipe. Im curious though if it would screw up a tune or not.

350Z400rwhp

iTrader: (4)

I would only run it back into a pipe before the supercharger. You will create a huge leak if you tap into the charge pipe after the supercharger.

Everybodywildou

iTrader: (32)

Would it be because it would basically render the bpv pointless to have on there in the first place?

350Z400rwhp

iTrader: (4)

Looks like Mustangs do it to the intake pipe before the supercharger.

Everybodywildou

iTrader: (32)

Oh okay. Any take on the tune aspect though? I have a utec that has been tuned for my current setup. Sorry for the ingnorance since I'm not too knowledgeable when it comes to the engine management department.

Quamen

iTrader: (14)

You should never recirculate the bypass valve into the charge piping. The whole point of a bypass valve is to prevent compressor surge when the throttle body closes and pressure backs up in the pipe by providing a momentary exit. If you recirculate the bypass valve back into the piping after the compressor it is worthless because now the path of least resistance is still backwards through the impeller.

If you recirculate it, you should put it back into the suction side of the supercharger.

Quamen

iTrader: (14)

This is a proper recirculation system:

Chef-J

iTrader: (58)

I had the bpv filter, but never try. But i heard it makes quiet a bit.

http://www.superchargersonline.com/p...ber=V8H040-175

str8dum1

iTrader: (11)

+1, only proper way to do it. It will not mess your tune at all because like I said, you are not changing the air the MAF/Map sensor sees.

Cux350z

iTrader: (162)

^ youre confusing me. Up above you said:

which i was reading and was going to post what Quamen already has. That wouldnt be "returning" more like rerouting to intake and eliminating the BPV


If you wish to recric you must do it before the blower.

Everybodywildou

iTrader: (32)

Anybody remember what the size of the supercharger inlet is by any chance?

05Z33

iTrader: (11)

^^^3.5" inlet for SC trim. I'm currently in the process of fabricating my own intake for my blower. I wish someone would just sell them already made. I'm using the K&N RX-4140 filter. It fits right through the hole where the hood latch is. This will make cleaning it alot easier.