Removable, low-friction air-screen for Killer Bee backplate

Another filtering media you can try is polyurethane. Room/window air-conditioners use it on the intake-side. It's inexpensive.. and a package would last a lifetime.

I've used it for fuel-tank cushioning too. It's only 6.35mm (1/4") thick. A 19mm square piece could be tucked between the backplate and firewall. I can definitely understand your concerns about the open air-intake. A fouled reed really puts a damper on the fun. With my suggestion, you may need a horseshoe-shaped spacer-plate or stand-offs. The media will compress otherwise; probably decreasing the air-flow. Either way.. there isn't much space between the throat and the firewall as it is. I have this back-plate too.. and I think I'll try an experimental firewall that has some channeling for more air. Maybe just one slot to act as a high-rise manifold does on a hot-rod engine.

Here's a pic of the filter-media.




It helps isolate vibration when running a hard-tank on little profile C/L models.


I like the tea-bag filter. I've never seen the plastic type. I should check at work. The company is Ireland-based.. and there's various boxes of Irish teas in the pantry. It seems tedious; your method of attachment.. but I don't see any other way to secure it.

Edit..

Here's some pics of a piece I just cut. It's hard to tell how much the media compresses, affecting cross-flow. A center slot-channel in the firewall would provide expansion-space for the media.. assuring good air-flow.