Lsaircraft wrote:I love the corvair engine but I have always wondered why no one has drilled the heads for dual ignition, seems silly to me that you would go through all the work turning it into an aircraft engine but skip the last step.
I have a Corvair Engine in my Sonex and it does have Dual Ignition as do all the Corvair Engines that are converted to aircraft use, but it still uses the same spark plugs. In the Distributor there are two sets of points, one is the Crans Cams XR-I electronic ignition modual and a set of regular point, each on works independently of there other. If one fails then you have the back up of the second one.. If you have ever seen a Corvair Head you would see that there is not where to drill the head for a second set of plugs..
My engine purrs like a kitten and if you do very thing that is calls for in the manual that come with your engine or ask questions if you are not sure of what you are doing the Corvair Engine is just as reliable as any other engine on the market, plus my Sonex will keep up with any Jab 3300 for more than half the cost..
Mike