Larry Severson wrote: > Is there any specific height above the cylinders that the plenum needs to > have for proper cooling aIr flow? 1", 4"???
Maybe, but I don't know what it is. I'd think that 3" or 4" would be best. If you used 1", the air would be pretty hot by the time it got back to the rearmost cylinder. I used the Jabiru engine's plenum as a rough guide, and it's probably 3" or 4" overall. Close enough for KR work. Building an oil cooler shroud today. Back to sanding urethane foam and glassing! Mark Langford, Huntsville, Alabama N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford