Dan Heath wrote: > I did run it today, taking > the intake air from the carb heat muff, and it is much better. I may be > able to tweak this manifold, to do what I want. We will see.
Carb heat is a wonderful thing in the winter, or even fall. I use it full time in the dead of winter, and on days like today when I took off at 38F, I used it for the whole four hours of flying. It improves fuel distribution and smooths the engine noticeably. When I take off with carb heat accidently turned off, it usually doesn't take long to notice because it's not quite as smooth as I'm used to in the summer or with carb heat on in the winter. Carb heat improves fuel economy, and EGTs get a lot closer together due to better mixture distribution. When the temps get below about 75 degrees, I make sure I'm runing carb heat. The upper limit on my plane is about 105F just behind the carb throat. Detonation is more likely above that, due to the high compression I'm running. Taking off with carb heat on in the summer time is a bad idea though...detonation is the likely outcome. Mark Langford N56ML "at" hiwaay.net website at http://www.N56ML.com --------------------------------------------------------
