I have a 1/7th TF spit with an RCV 90SP under construction, and I'm looking for ways of minimizing the openings needed. I at one time considered making some scale exhausts but there is just too little room at this scale to make it practical. Now I will be opening the exhaust pipe ends to add more venting. Looks like I'll end up with a hole similar to AlfaWiskey's with a baffle to direct the air over the cylinder.

I look forward to more posts!

Scott