I already did a search a came up empty. I'm buying a NOS sniper kit next week. The thing is I don't know how the blow down tube attaches. Is there an adapter I need or what? From the picture on holley's web site I can see it has a blow off cap on it but I don't see how the blow down tube would screw on. The only wayI can see to do it is if you took the cap off and just put a disk in the tube and then screwed it on, but that doesn't make any sense. Can somebody give me some insight?

 

You need to buy the burst disks and the blow down tube(make sure that it is the right angle for you, either a u shape or L shape)

Find your bottle number and make sure what size.

Mine is zex and was a 8-an fitting I think.

Yes, you have to take off your cap(bottle has to be empty)

 

Shouldn't it already come with a disk behind the blow off cap? Not that it would be bad to have a second one.

 

Yes, there is a blow off disk behind the cap, but if you exceed 2000psi(I think), you lose EVERYTHING in your bottle and it goes in your car and knocks you out. The new bdt, will have a different burst disk.

With the blowdown tube, the n2o exits the car.

Do you need a bdt?
I have one, not sure on the shape(L or U shape)

 

Yeah, I already have the blowdown tube. It's L shaped. It didn't come with a disk though. Maybe I'll recheck the box tomorrow.