I'm going all vband on my charge pipes and I already run solid engine mounts. I want to run a bellow in the charge pipe going to the intercooler from turbo's and found vibrant part# 68834 which is for 3" pipe. I've looked all over and can't find any pressure rating for the bellow. Will it work? Or any other brand I should use. Will be seeing over 100lbs. Thanks
Vibrant performance bellow pressure rating
- Thread starter jasonc
- Start date
BC847
New member
I run one of those on the hot-side of my mess. That particular model includes a sleeve on the interior that keeps the moving stuff off the rough profile of the bellows. (Attached on the inlet end, floating on the outlet end).
- In my application, the only movement the bellows accommodates is mostly thermally driven so I can't speak for the overall range of movement.
- While the measurements are 3" ID for the inlet and outlet, that internal sleeve has things neck down perhaps a quarter of an inch or so.
- IIRC, the thing is not thick-walled. Maybe 20ish gauge or there abouts.
- 304 stainless steel construction.
- It is my belief the thing is NOT made to withstand substantial/constant flexing as in that sense, work-hardening will result in the bellows fracturing.
- From my point of view, I think, it could comfortably and reliably accommodate perhaps 10* of flex (The internal sleeve limits that), maybe 1/4" expansion/contraction, and absolutely NO torsional movement.
- My application has the thing deal with around 60(?) psig of 1000*f exhaust gas.
Over all, it appears well constructed and if kept within a reasonable range of movement, it should work OK for a while. We'll see.
IIRC, they are available with and without the internal sleeve, as well as with or without an external braided SS sleeve.
Hope this helps.
- In my application, the only movement the bellows accommodates is mostly thermally driven so I can't speak for the overall range of movement.
- While the measurements are 3" ID for the inlet and outlet, that internal sleeve has things neck down perhaps a quarter of an inch or so.
- IIRC, the thing is not thick-walled. Maybe 20ish gauge or there abouts.
- 304 stainless steel construction.
- It is my belief the thing is NOT made to withstand substantial/constant flexing as in that sense, work-hardening will result in the bellows fracturing.
- From my point of view, I think, it could comfortably and reliably accommodate perhaps 10* of flex (The internal sleeve limits that), maybe 1/4" expansion/contraction, and absolutely NO torsional movement.
- My application has the thing deal with around 60(?) psig of 1000*f exhaust gas.
Over all, it appears well constructed and if kept within a reasonable range of movement, it should work OK for a while. We'll see.
IIRC, they are available with and without the internal sleeve, as well as with or without an external braided SS sleeve.
Hope this helps.
Last edited:
xDiesel03
New member
I had that in my original Firepunk Compound setup. It held around 100psi just fine. However, I recommend you use Vibrant Vanjen clamps if you are still sourcing the parts. The vanjen clamps are tested to 200psi and facilitate engine flex.
I was using the BD Boost Lock Kit on the manifold inlet, but after I switched injectors and secondary from a .91 to 1.0 it bent and broke, taking out a power steering line in the process. Firepunk set me up with Vanjen connections at the turbo outlet and intake manifold inlet. Still running regular boots at both intercooler connections.
I was using the BD Boost Lock Kit on the manifold inlet, but after I switched injectors and secondary from a .91 to 1.0 it bent and broke, taking out a power steering line in the process. Firepunk set me up with Vanjen connections at the turbo outlet and intake manifold inlet. Still running regular boots at both intercooler connections.
