Colin Hales wrote: >>My 75 hp 2.2 Jabiru Powered KR2 does 148 mph flat out burning shed loads of fuel. 7 Gallons an hour. <<
Don't Jabirus have a mixture control? Apparently not. My bone-stock KR2 with a 75 hp VW 2180 burns 4.0 US gph (3.33 UK gph) at 148 mph, throttled back a bit to conserve fuel, turning 3150 rpm. Whether you are talking US or UK gallons, the Jabiru appears to be wasting a lot of unburned fuel out the tailpipe. Perhaps your KR2 is draggier than mine, but double the fuel consumption at the same speed seems extreme. I'm talking true airspeed at lower medium (maybe 4500') altitudes. You may be talking about some other kind of airspeed. Mark Langford ML at N56ML.com http://www.n56ml.com
