@Rod Stewart posted:So After some reaming and grinding the smoke flow is better, but not great. And now it all exits only the rear stack, at about a 45 degree angle, which looks weird to me. Gotta rethink this project.
I might try my hand at building a custom manifold out of 2 or 3 sizes of thin wall brass tubing. Has anyone tried this with any success?
Rod
Hi Rod,
I had the same problem with my 6-28077 LionMaster Challenger #3983 and the "S" shaped smoke stack. Although it smoked much better after drilling out the circuit board opening to increase airflow, upgrading the resistor and changing the batting, I was still not happy with the direction of the smoke once it left the Challengers shell because of the "S" shaped restriction (see photo below).
I found a much better smoke funnel part #6101208201 in the parts guide for the LionMaster Big Boy #4011 item 6-11028. To use this improved dual output Big Boy smoke funnel in a LionMaster Challenger you have to:
a. Remove the “V” shaped wedge from the inside your Challenger's shell with a dremel (this is not for the faint of heart)
b. Drill a new hole for the dual output funnel on one side of the smoke units circuit board. Be careful of the trace wires inside the circuit board (see my round mark in the next photo)
c. Trim the two mounting tabs off the new dual output funnel
d. Seal the old smoke output location on the circuit board
The results with the Big Boys new dual output funnel were excellent. Lots of smoke comes out of both the Challengers stacks. It’s an even amount of smoke and it goes straight up into the air.
Thanks,
