Originally Posted by
Bif99
I may have a solution to your problem extending the exhaust tubes on your Pitts style muffler. I recently completed a Christian Eagle with a O.S. 1.20 4C engine. The engine is side mounted which allows the muffler to stay within the cowl. It is pointed down at an angle and toward the firewall but stops a couple of inches away from the firewall. I purchased some silicone tubing 3/8" ID X 5/8" OD and zip tied 8" to the end of the muffler. The tubing bends slightly as it exits the bottom of the cowl. Your installation might be neater with a Pitts style muffler. The tubing will probably come straight out. If the ID works on your muffler I can send you some. Just let me know how much you need. Otherwise, you can look for a different size at
www.usplastic.com.
Thanks for your kind offer but I think I have a solution. I will cut the down tubes on the muffler about half way down, use silicone tubing to extend the down tubes down and back towards the firewall, Then I will use the cut off exaust stubs to finish it off. I will then use clamps for electrical conduit to secure the tubes to the firewall.
Make sense? This way, I only have to cut enough of the cowl to allow for cooling airflow. I saw the DLE20 set-ups on this thread and yikes! That's just brutal. the only thing sticking out of my cowl will be the needle valve and the exaust stubs. Just my way, I guess. I expect my Eagle to weigh less than 9lbs. dry. She'll be light, nimble, and quick. By the way; great bunch of guys here. Thank you!