International 3800 adventure bus build

[AdventureBus]

I can’t believe it’s been a year since I’ve posted any progress on the bus. The first half of ‘24, I was busy doing other vehicle work. I fully rebuilt the brakes and front suspension on my truck and did a manual transmission conversion and on my son’s Frontier.

Anyway, on to what you came here for. I finished the rust repair on my floor and painted it with Chassis Saver.

Then I glued down 3” of XPS rigid foam insulation.


I didn’t glue down the Advantech subfloor because I planned to install hydronic heating first.

I realized I might hit a pipe while bolting in the furniture, so I decided to go ahead and fabricate all that first and bore the holes.



More to come!

 

[Ozarker]

Kids from Sparta would never recognize their bus now! Nice work....

 

[tj4861]

this build paused? or finished?

 

[AdventureBus]

Once again… It’s been a while.

 

[AdventureBus]

Modified the downpipe for front stabalizer framework clearance, built a quarter-wave resonator, and installed a 30” FTE resonator last weekend. It is considerably quieter at all RPMs now, especially cruising between 2000-2500 RPMs.

 

[BBD]

Re: Resonators
This is very cool & I've never heard of them - thank you for posting!
Did you do some calculation to determine length on the quarter-wave resonator?
Curious if you changed the muffler as well?

 

[AdventureBus]

Re: Resonators
This is very cool & I've never heard of them - thank you for posting!
Did you do some calculation to determine length on the quarter-wave resonator?
Curious if you changed the muffler as well?

Hey, thanks! Yes, you can find quarter-wave resonator calculators online, I don't remember which one I used. It's dependent on the number of cylinders and the RPMs at which you wish to kill the drone. They have a relatively narrow band of effectiveness, maybe plus or minus 100 RPMs, that's one reason I also added the FTE resonator as it seems to have a broader band of cancellation. I don't have a muffler anymore, the factory one seemed pretty restrictive so I removed it. It isn't very loud right now with the resonators and the turbo.