Brodak muffler pressure tap

I was surprised to discover that the Brodak .40 muffler had no pressure tap. A tank that I really want to use absolutely requires muffler (or crankcase) pressure.

Where on the B40 muffler is the proper (best) place to install a pressure fitting? Is the metal thick enough that I can drill & tap, or must I use a nut on the inside?

Maybe I should just order a tongue muffler w/ pressure tap from Leonard??

Suggestions, please . . .

If you need to tap the muffler for a pressure tap, it really doesn't matter too much where you place that tap. The muffler body should be amply thick to drill and tap it there in a convenient location, or you can simply place the tap in the inlet stack of the muffler.

The tongue mufflers are lighter, less conspicuous, and come with a tap, but the choice is yours.

I don't know about the Brodak muffler but, the LA muffler has a baffle cone that divides the chamber. If you have something like this you should put the tap in the primary chamber.

>I don't know about the Brodak muffler but, the LA muffler
>has a baffle cone that divides the chamber. If you have
>something like this you should put the tap in the primary
>chamber.
>
>
>Giffy

You are correct if the muffler has such a baffle. In the case of the Brodak muffler, however, there is no baffle. You would probably be better placing it in the front section, however, anyway, as the rear section is made to be able to be rotated, and if the pressure tap were to be placed there, it would roated with the rear section if you should decide to reorient the exhaust stinger.