what is this?
 

Hello guys

So I bought a car recently and its got a few bits and pieces that I'm not sure about. Its a 95 impreza sportswagon with an ej20g swap

Pics attached.
There is a blue box with a lid and 2 hoses coming from it. Its where the battery use to be (battery moved to boot)
One hose connects to the intake and the other connects to the block. Inside the box there is absolutely nothing.
It doesn't seem to do anything there's no branding on it or any part numbers.

And last thing I have a denso 3 port boost solenoid mounted wiring connected but no other hoses are connected I think the old owner had prepared to use it but decided to wait is it ok to leave it there? Should I disconnect the wires its just hanging there in my engine bay by the 1 screw

Any help is appreciated thanks

Its an oil catch can

[QUOTE=johnvk7;819547]Its an oil catch can[/QUOTE]

awesome thanks for the quick reply
is it normal to not have even a little residue?
any chance its clogged?

and the boost solenoid is it ok to leave there?

thanks

Someone correct me if im wrong. If you connect that boost controller you will need to have the car tuned for it. And in a gc8 that means you will need a new ecu, prob the reason the original owner didnt finish the install. Unless you have a manual boost tee in their somewhere you will most prob be running wastegate boost pressure.

I think Ecutek can do 99-00 onwards? But if the line to the waste gate actuator is connected directly to the compressor housing then yes, wastegate pressure is what it will be running

Open source can tune gc8 as well, not ecutek exclusive feature anymore. Standalone boost controller doesn't need tuning, as long as ecu can rwad boost and load to compensate fuel and timing.

Boost tee is to set minimum boost, ie u wanna run higher than wastegate pressure. It has has no control on boost spiking/creeping

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For the cost of open source tuning the anemic GC8 factory ECu I'd be looking at something a little smarter - A Power Fc as a minimum.

sooo back to the original question is it ok to leave plugged in as long as its not actually connected to my turbo and intake? I had done some reading and it will need a tune but I was thinking of using a standalone to control boost in future anyway if its fine ill leave it if not I can remove and block off the electrical plugs

Yes its fine if you can live with the wastegate boost pressure.

Does gc8 have some sort of factory boost control?

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You wont need a tune with a GC8 if you add a boost controller...
You wont need a tune with a GC8 if you add turbo back exhaust.....
You wont need a tune with a GC8 if you change top mount intercooler......
You wont need a tune with a GC8 if you change turbo........
You wont need a tune with a GC8 if you upgrade fuel pump.....

So you can go from the factory 2 port controller to a 3 port without needing a tune?

[QUOTE=s20525xxx;819660]Does gc8 have some sort of factory boost control?[/QUOTE]


Seriously?? Or you trolling?

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[QUOTE=Tony;819666]So you can go from the factory 2 port controller to a 3 port without needing a tune?[/QUOTE]


To clarify:

You wont need a tune if you add an aftermarket boost controller (electronic or manual).

[QUOTE=matto20v;819672]To clarify:

You wont need a tune if you add an aftermarket boost controller (electronic or manual).[/QUOTE]

Yeh nice one.

So your telling me the gc8 ecu can completely remap itself to make use of the completely different hardware which controls boost in a completely different way to the stock 2 port by mearly installing it and driving it around? Maybe if it was a stand alone boost controller, but its being controlled by the ecu so i highly doubt you can just install it and drive off?

april fools?

[QUOTE=Tony;819673]Yeh nice one.

So your telling me the gc8 ecu can completely remap itself to make use of the completely different hardware which controls boost in a completely different way to the stock 2 port by mearly installing it and driving it around? Maybe if it was a stand alone boost controller, but its being controlled by the ecu so i highly doubt you can just install it and drive off?[/QUOTE]



An aftermarket electronic (or manual) boost controller is a stand alone boost controller sweetheart.

Here's a link for you:
[url=http://www.turbosmartdirect.com/Product-Categories/Boost-Control/]Boost Control[/url]

2 port to 3 port BOOST SOLENOID v's 2 or 3 port BOOST CONTROLLER ........Aren't the same thing........

On a GC8 you can up the boost a bit with a stand alone, but you'll hit fuel cut at about 16psi from memory.

Your AFR's *might* be way off too.

Derp. My bad, ment ebcs.

[QUOTE=Rossco;819686]2 port to 3 port BOOST SOLENOID v's 2 or 3 port BOOST CONTROLLER ........Aren't the same thing........

On a GC8 you can up the boost a bit with a stand alone, but you'll hit fuel cut at about 16psi from memory.

Your AFR's *might* be way off too.[/QUOTE]


Yes, fuel cut is at 18psi.

[QUOTE=matto20v;819691]Yes, fuel cut is at 18psi.[/QUOTE]

Depends on the year & ECU.

Do it right ,do it properly, do it once.

[QUOTE=Jacob92;819667]Seriously?? Or you trolling?

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I never troll...... I have seen people runing waste gate pressure.

Just curious why that 3 port left unused there and oem has a 2 port.

I would do a retune with any changes to air /fuel mixture

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I am running waste gate pressure. My gauge tells me that I can't get past 9psi figured that ages ago just didn't bother. I now have a pfc purchased from a member on here he had an old 20g running exact mods but boost control made 200hp at 15psi. I have plugged in the ECU and have been driving around everything seems ok according to the fc commander. Showing Max knock 6 at idle Max knock 18 driving normally. I am now wondering should I connect the boost solenoid. will the map on the PFC allow the 3port to make 15psi as per the original tune? Thanks

PS I will be tuning soon but I work too much can't get my schedule to match the tuner