I no longer have a Cobra. But as we're looking for something to talk about other than the pitiful condition of the website, I'll offer this. . . The exhaust system on my Cheetah was all designed by me. That included the mufflers in the 20" long, 4" diameter side pipes. I've tried nine different baffle combos trying to get the sound down without strangling the engine. None of them have made me happy. I've recently collected material for number 10. Simply described it consists of a 3.5" diameter steel tube with metal panels inside dividing the interior into three equal size spaces. Caps welded on each end will force the exhaust to go down the first space, back up the second space and then down the third space to exit. The caps will be sized to fit snuggly within the 4" side pipes to prevent bypass gases and minimize rattling parts. . . I'm hoping that tripling the distance traveled by the exhaust and separating it from the walls of the side pipes will help. But I've been wrong nine times before, so I'm not holding my breath.
My other long term project is my "box of parts Berkeley." As you'll see in the pic (not my car), a completed 1958 Berkelely SE328 resembles a two-thirds scale Cobra. They are tiny cars made of fiberglass without a metal frame. The originals were powered by 328cc motorcycle engines, so it will not be a burner. In fact they are so small and fragile I will likely never drive it on a street with a speed limit higher than 25 MPH. . . But for now mine is little more than a box of parts that need a lot of work. It should keep me busy for the rest of my car building life.
