Third party sealed snorkels for the IG and QM

[KristinaM]

Just had a thought - I know plumbers can put a liner in existing damaged piping. Couldn’t something like this be applied to the inside of the OEM RAI to seal it off in situ?

View: https://youtu.be/EHRAazjFg9w?si=lJD0lGG7I1pjSsXG

I’m not convinced this is viable once you take a look at the petrol air induction assembly:
https://www.theineosforum.com/threa...ls-for-the-ig-and-qm.12420533/post-1333369891

You can see the components of the RAI here:
https://www.theineosforum.com/threa...ls-for-the-ig-and-qm.12420533/post-1333369964

Granted I’m not a plumbing expert but none of this looks suitable for a sealed liner…

 

[Clark Kent]

The theory checks out. The pressure drop would increase ever so slightly between the RAI head and the air filter due to the precleaner acting as a restriction. Some 'dirty' air could get pulled in through the inlet duct gaps. About this much maybe? . .

Most would still pass through the precleaner as the path of least resistance and all of it goes across the airbox panel filter.

I happened to watch a good YT on air filters from Donaldson Filters today. It's on The Motor Oil Geek's channel.
The tech is demonstrating the effects of a dirty air filter and how a dirty filter is more effective than a clean filter.
He also restricts the inlet on a test rig to simulate the pressure drop across a dirty filter element. He has to almost completely choke the inlet before a pressure drop registers. This is the same as adding a 'restrictive' cyclone head on top of an RAI. The impact is negligible. Most of the air will still pass through the cyclone instead of getting sucked in through the gaps of the RAI.

Skip ahead to the demo here

View: https://youtu.be/0flEIBOTYrE?si=LH4veB6yujxe9M2m
​

 

[Tazzieman]

I'm no expert, but I have a suspicion that some green garden edging and 2 tubes of sikaflex may not be the most robust solution.

Not a fan of a little bilge pump in the airbox either? Tough crowd here

 

[Blackwolf]

Although a slight diversion from this topic, does anyone know the purpose of the two feautes marked A and B in the diagram below. In the parts list item A is just part of the Air Filter Box Assembly and is not given any separate classification, and item B seems to be a mysterious protrusion on the Clean Air Duct without any further explanation. I am having trouble understanding their purpose.

I know it was suggested earlier in the thread that A may have a noise suppression function, but it strikes me to be a very odd and unnecessarily complex shape for that.

 

[Logsplitter]

Although a slight diversion from this topic, does anyone know the purpose of the two feautes marked A and B in the diagram below. In the parts list item A is just part of the Air Filter Box Assembly and is not given any separate classification, and item B seems to be a mysterious protrusion on the Clean Air Duct without any further explanation. I am having trouble understanding their purpose.

I know it was suggested earlier in the thread that A may have a noise suppression function, but it strikes me to be a very odd and unnecessarily complex shape for that.

View attachment 7915487

I think A is a noise suppressor

 

[landmannnn]

Although a slight diversion from this topic, does anyone know the purpose of the two feautes marked A and B in the diagram below. In the parts list item A is just part of the Air Filter Box Assembly and is not given any separate classification, and item B seems to be a mysterious protrusion on the Clean Air Duct without any further explanation. I am having trouble understanding their purpose.

I know it was suggested earlier in the thread that A may have a noise suppression function, but it strikes me to be a very odd and unnecessarily complex shape for that.

View attachment 7915487

It's called a Helmholtz resonator, similar in principle to the ones found on exhaust systems.

The difference bring that the exhaust one reduces pulses from the exhaust valves, the inlet ones from the inlet valves.

So it reduces noise.

It may help with power delivery as unwanted pulses interrupt airflow. I'm not convinced that those pulses would get all the way back through the turbos, pipework and intercooler.

 

[Blackwolf]

Thank you, that has led to some interesting reading about Helmholtz induction systems.

 

[ECrider]

Thank you, that has led to some interesting reading about Helmholtz induction systems.

Mrs. Blackwolf is in for scintillating conv over supper this evening.....

 

[landmannnn]

Thank you, that has led to some interesting reading about Helmholtz induction systems.

It's the same effect as the tune you get when blowing across the mouth of a beer bottle. Different bottle sizes and shapes produce a different note.

Humans are particularly sensitive to certain frequencies, particularly those used in fire alarms and similar.

These resonator boxes are in effect using different sized beer bottles to move the noise frequency away from the normal/irritating frequencies.

Probably best not to drink and drive by the way.

 

[Krabby]

It's the same effect as the tune you get when blowing across the mouth of a beer bottle. Different bottle sizes and shapes produce a different note.

What sort of notes do Foster's bottle make?

 

[ECrider]

What sort of notes do Foster's bottle make?

flat ones

 

[Clark Kent]

What sort of notes do Foster's bottle make?

 

[Krabby]

View attachment 7915510

I see what you’re trying to do there, but the double yellow red, which carries no ban, is yet another clue that even in denial, your passion for Foster’s shines through.

 

[Clark Kent]

I see what you’re trying to do there, but the double yellow red, which carries no ban, is yet another clue that even in denial, your passion for Foster’s shines through.

My spirit for the fight would be made easier if I actually drank beer. Nevertheless, this abuse transcends beer. You're attacking our national identity!

Friends, Bogans, Countrymen, lend me your beers. I come to bury @Krabby, not to please him. The evil that moderators do lives after them.

PS: Krabby: Is there any chance we could pause this until after the cricket? It's the AUS/UK Ashes series and we can only defend our national pride in one direction at a time.