[xan rehman]

hi guys,

back again with another question regarding the air box/intake on the 240z

i currently have a stick 240z orange air box on my car and i wanted to remove it i have no issues removing the air box however

there are several pipes that to to this air box and i couldn’t find anywhere that explains these and if they are necessary

hopefully you guys could shed some light onto this for me

i have added a video below with no sound that shows the three lines i belive 2 are from the floats and one is well i actually don’t know haha

cheers guys

zain rehman
[email protected]

 

[Dave Datsun Tech.]

Two are the float chamber vents.
They need to go separately into the air filters.
I put copper tubing inside mine so I could shape them to be just in front of the carbs, just in case.
Up then down is okay, but no low spots in those hoses that would hold gas and not let it vent easily.
The other little one is to the flow guide valve to let air into the gas tank. (Vent)

 

[xan rehman]

thank you so much this has cleard it all up for me cheers dave 👍

 

[xan rehman]

Two are the float chamber vents.
They need to go separately into the air filters.
I put copper tubing inside mine so I could shape them to be just in front of the carbs, just in case.
Up then down is okay, but no low spots in those hoses that would hold gas and not let it vent easily.
The other little one is to the flow guide valve to let air into the gas tank. (Vent)
View attachment 112863 View attachment 112864

so regarding this also just a quick thought i have some velocity stacks lying around somewhere would i be able to renove the air box and run these temporarily until my triple webers arrive - and what would i do with these pipes/lines if i were to run velocity stacks?

cheers dave

 

[Dave Datsun Tech.]

The float chamber vent hoses could go up then down and zip tie them to air box bolt holes.
Or you could just leave all of them open.

 

[xan rehman]

The float chamber vent hoses could go up then down and zip tie them to air box bolt holes.
Or you could just leave all of them open.

thank you dave will try this and if i dont like it i will revert it to stock i assume can also leave the one to the fuel tank open as well?

 

[Dave Datsun Tech.]

i assume can also leave the one to the fuel tank open as well?

Yes