"The purpose of the air grid is to eliminate air flow turbulence. The 1/2 stainless steel vanes straighten the air before it reaches the throat of the carburetor and achieves better air/fuel distribution. This is a proven performance enhancement technique."
I just recently bought a carburetor heat box from Aviacomp International in Scappoose, Oregon. A very interesting gentleman named Don London owns and operates it. He repurchased the business from the man in California that he originally sold it to several years ago so the web site is not updated yet as far as his address (it still lists the previous owner in CA). If any of you are interested in contacting Don it is P.O. Box 1074 Scappoose, Oregon, 97056. His phone number is (503) 543-3986. Installed in the outlet of the heat box that is now on the front of my Revflow Carburetor is a series of 1/2" vanes installed in the throat of the box to straighten the air flow out prior to it entering the carb. (Pictures of these vanes are on the Aviacomp website) Don recommends it although he may or may not have documentation regarding how much good it does, I didn't ask him. The vanes can be removed from the box if you so choose but I left mine in. I have had several phone conversations with him and have also received a cabin heat box from him as well as a couple of flanges and tubes. They are all of excellent construction using aluminum and stainless steel with stainless steel rivets, and his prices were very reasonable. Any of you looking for these heat boxes may want to look him up. His units are in Aircraft Spruce catalogs as well as the VAN's RV catalog, although he offers a wider range of selections if you deal with him directly. The flange that I attached the heat box to the carb with fit exactly over the 2 1/2' opening on the carb and was easy to attach. I have added a cone shaped K & N filter style number RX-4010 to the front of the heat box with a 2 1/2" diameter opening so the assembly all fit up easily. Now I'm making a fiberglas tube for ram air supply to the air filter. If anyone is interested in seeing this assembly, I'm adding some pictures to my web site this week at http://www.sharkdriver.zoomshare.com. Neal Hornung lt1corve...@earthlink.net Lima, Ohio Allen County Airport (AOH)From cgardn628 at rogers.com Mon Nov 16 17:16:56 2009 From: cgardn628 at rogers.com (cgardn628) List-Post: krnet@list.krnet.org Date: Mon Nov 16 17:16:56 2009 Subject: KR> Voltage regulator /Alternator problems? Message-ID: <2CFF4C8BFD9143648164E278053BF2B6@HomePC> Has anyone else had problems with the voltage rectifier/regulator that is supplied for use with the Diehl accessory case style alternator. I began to witness tripping of my 30A circuit breaker that connects the alternator to the electrical bus after an hour long flight. When the rectifier cooled down the problem went away and the breaker could be reset. ( 1" SCAT blast tube keeps it cool in flight ) Changing the rectifier ( luckily I had a spare) solved the problem . This is after about 200 hours of flying time so I guess this is not abnormal. Curious to whether anyone else has had this problem. Chris Gardiner KR2S
