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R33 gtst gearbox top barb

zigrb30
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joshuaho96 Veteran

joshuaho96

Posted
Posted
2 hours ago, zigrb30 said:

Hi all,

I am putting an r33 gtst gearbox into a VL and have noticed what looks like a vacuum barb on the box (on top in the middle).

Suspecting that it's a vacuum line but I'd like to double check, if someone could confirm the function of that would be great.

Cheers in advance.

Breather for it. If it's anything like the GTRs it should run up to the top of a bellhousing bolt.

GTSBoy Grand Master

GTSBoy

Posted
Posted

Oh, yes. If you connected it to the manifold your first drive would be very eventful. Very shit. Very interesting. Perhaps take a video if you feel the need to see.

Terminating the breather at the top of the bellhousing is normal/stock. Some gearbox lubes (hello Redline Shockproof) like to foam up a bit and require the breather to be extended up higher, so you don't get spots of smurf jizz staining the floor under your car. Mine is thus right up behind the head. Make sure you fit a u-bend at the top so it points back downward so that dirt and schmutz has a harder time getting into it.

Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted
26 minutes ago, zigrb30 said:

Cheers for the replies.

So i don't connect it to the manifold I just run the hose high up on the firewall?

Please do not connect it to your manifold.

If you do, as GTS suggested please record the lot in 4K with good mics attached.

 

On the factory Skyline, there's a upside down pipe that allows it to breathe, looks like this 

 

Screenshot_20250211-092810.png

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