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Quick Question On Intercooler Fitting

Mouseness
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Mouseness Contributor

Mouseness

Posted
Posted

Got the cooler and pipework off a mates r34 skyline, so i figured it would be a pretty straight forward swap

but just wondering what this is in the pipe coming off the manifold. Is it something to do with the dual stage boost?

first two pics show what im talking about, 3rd pic is the pipe that will be in its place. Which has nothing on it to transfer it over..

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chook Mentor

chook

Posted
Posted

nope, it is there for a reason, you need to connect it up or blow off to atmosphere, which may be illegal in some/all areas. Without one can cause pressure surges and damage to turbo/engine.

1000th POST !!! woohoo

M I K E Mentor

M I K E

Posted
Posted
nope, it is there for a reason, you need to connect it up or blow off to atmosphere, which may be illegal in some/all areas. Without one can cause pressure surges and damage to turbo/engine.

nope, untrue. you can run without one, you'll just get 'flutter'

don't really want to start a debate on compressor surge though

plenty of turbo motors came from factory without a bov, for instance the ca18det

QWK32 Veteran

QWK32

Posted
Posted

its debatable weather you need the bov or not. IMO i'm with chook, in that you need to run one. alot of people choose not to run a bov but this is usually on aftermarket turbo setups.

also with the stock bov you just cant run it to atmo, the factory bov is designed to pass on vacuum, so you will get eratic idle and constant stalling. your going to have to get an adapter plate made up to fit it to the new pipe.

QWK32 Veteran

QWK32

Posted
Posted
nope, untrue. you can run without one, you'll just get 'flutter'

don't really want to start a debate on compressor surge though

plenty of turbo motors came from factory without a bov, for instance the ca18det

to add to this, the RB20DET out of a R32 comes factory with a bov, same engine in an A31 cefiro does not :P

chook Mentor

chook

Posted
Posted

yep, sorry, factory one cant blow to atmos, meant to mention aftermarket BOVs for this. But i still would not want to run around without one, especially with higher than stock boost.

http://en.wikipedia.org/wiki/Turbocharger#Wastegate

Mouseness Contributor

Mouseness

Posted
  • Author
Posted

It has a bov on the new pipework, so thats no drama

i just want to know how to disconnect that one and do away with it all

Theres a line that runs down to behind the pod intake.. and a line off that one that goes up to what i think is maybe a solenoid or something with another line that runs down to the waste gate?

QWK32 Veteran

QWK32

Posted
Posted

ok. i drew some arrows on the pic you gave. the larger pipe with the red arrow pointing to it, just block off, if you dont you will be creating a large vacuum leak. the smaller one with the yellow arrow, run it to the new bov.

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Mouseness Contributor

Mouseness

Posted
  • Author
Posted

Thanks heaps quick32

Been trying to find that out for hours :P

It's coming along alright so far, would be close to finishing it all in one day but im sick as hell with some sort of flu.

You can see on the right where the bov is now, hks ss. Not bad considering my mate gave the whole lot to me for $250.

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Mouseness Contributor

Mouseness

Posted
  • Author
Posted

Thanks jez. Pretty much got it all done, have neatly cut out the front bar to fit around it.

Just gotta get a bit of hose to run down to the bov and block off that vacuum line.

The boost sensor hose was also fitted in there too, is there an easy spot to re locate that or should i just tap a thread into the new piping and run it where it was originally?

but yeah, im done with this swine flu.. medication, beer and bed for me.

thanks guys, its been a productive day :P

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Are you still using the factory boost solenoid? Some of the lines you were describing sounded like the lines to and from the boost solenoid to the actuator etc. Whereabouts are you located? I am sure another member would be happy to come around and have a look at your set-up.

Mouseness Contributor

Mouseness

Posted
  • Author
Posted

Im near brisbane Kiwi.

I got it all sorted out, everything works fine except it likes stalling when i tap the throttle. Im guessing this is because ive just blocked off the pre existing plumb back pipe and not connected it to the new bov?

any way around it? Took it for a test run then up the highway through town and the girl in the landcruiser beside me found it hilarious that i stalled the auto twice trying to take off. She actually slowed down while laughing.. :P

QWK32 Veteran

QWK32

Posted
Posted

sounds like you have a vacuum leak mate. have you checked that you hooked everything back up? there aren't any vacuum line floating around not hooked up are there? it will still run ok even if you block up the stock bov and dont run one.

how far out of bris are you?

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