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HERE IS A PICTURE OF MY VACUM SETUP AND THE BOV AND WHERE MY BOOST TAP IS.

THE PROBLEMS ARE....

1. MY BOV ISNT WORKING? IVE CHECKED IT AND IT SEEMS FINE..

2. IT DOESNT LIKE BOOSTING 10 OR MORE POUND. IT MAKES ALL THE RIGHT NOISES WHEN ON FULL THROTTLE BUT DOESNT BOOST ITS LIKE FLAT SPOTTING THE WHOLE WAY UNTIL ABOUT 6000RPM THEN GOES HARD BUT ITS TOO LATE!

3. THE CARBON CANISTER IS BROKEN SO I HAVE REMOVED IT BUT NOT EXACTLY SURE WHERE TO RUN THE LINES INTO THE PLENUM SO I HAVE JUST LINKED THEM INTO EACHOTHER?

ITS A FACTORY R33 GTS25T MANUAL WITH ONLY A SPLIT DOWN PIPE AND 3 INCH STRAIGHT THROUGH EXHAUST.

PLEASE HELP IT IS SOOOOOOO FRUSTRATING!

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do that red and blue hose connect to each other ? it looks like they do but have you blown through one to check ?

flat spots . welcome to rich and retard . /possible coil packs . does it miss and fart or just feel flat as f**k ?

Edited by lachlanw
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BOV might not adjusted hard enough and is opening under full boost.

Looks like its is plumbed up correctly.

Pull that shit metal line off and run a single vaccum line from the manifold to the bov.

Less joins= less chance of hose popping off.

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do that red and blue hose connect to each other ? it looks like they do but have you blown through one to check ?

flat spots . welcome to rich and retard . /possible coil packs . does it miss and fart or just feel flat as f**k ?

it just feels flat as f**k! and not coils because they are new heavy duty dsr ones and new plugs aswell.

yes the blue and red hoses are joint to eachother via the metal crap because i dont have a hose big enough to join straight to the manifold yet haha.

also its creeping up to about 9 and a half psi in second but in 1st its about 8? so whats up with that?

thanks for the help guys keep it coming! :)

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the creep it that manual bleed valve/controller .in tnd gear it has time to climb to 9.5 . in 1st gear you change gear before it gets there

do you know what spring is in the bov? . they come with quite a selection from memory . you should be able to get the bov to go off with the hood up just playin with the throttle .

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the creep it that manual bleed valve/controller .in tnd gear it has time to climb to 9.5 . in 1st gear you change gear before it gets there

do you know what spring is in the bov? . they come with quite a selection from memory . you should be able to get the bov to go off with the hood up just playin with the throttle .

its the turbotech valve that everone was talking about. it seems really good but i guess thats what just happens..

and not sure about the spring i got the car as it is now.

it also delays when the car isnt heated up to full temp. even half throttle it sucks heaps of air but doesnt go anywhere.

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BOV might not adjusted hard enough and is opening under full boost.

Looks like its is plumbed up correctly.

Pull that shit metal line off and run a single vaccum line from the manifold to the bov.

Less joins= less chance of hose popping off.

the bov has been fully adjusted both ways and still no go.....

ive taken it apart and pushed it up with my fingers and it feels fine.

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ok so now ive reset the ecu and turned the boost up to about 11 to 11.5psi and it loves it

but still kinda flat spots slightly.

bov not working but just bought a second hand mint condition factory bov so will put that on. i cant block off the aftermarket bit on the pipe so could i just leave the bov on and block the vac bit off and run the vac line off the standard bov? so il have 2 bovs but only one will be releasing the air and the other one will just be blocking the pipe off. could that work?

and it wont take more then 12psi boost ether as it just flat spots the whole way so im thinking this is the side mount at its max and need a front mount?

help please cheers

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ok so heres the update

got the standard bov on there and its working but have still got the aftermarket one on there just to block off the hole for the moment.

doesnt want to run over 10 psi again.

im wondering if its the intercooler thats not letting it boost properly?

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I realise this is more than likely totally unrelated but I believe you have a vacuum leak next to the red hose in the last pic, there is nothing on the end of the connector, Cause maybe?

na its not connected to anything so nothing is going through it

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