"unless I fall over a Type 4 cheap." Doug Rupert) As most of you know last year I replaced my type 4 after 20 years. I talked to Mark L and visited WW's site and added the numbers up to see if I could afford or even if I should switch to the corsair. The VW won the argument for me just because a new VW would be a bolt on and fly proposition. A lot of parts were reused from the original engine. With the corvair I would have had to change things like mount, charging system, baffeling, cowling changes, prop etc, etc. If I had no other engine, just starting out, the cost would probably be close enough to go either way. I considered the reengineering for the turbo to be minor compared to all the mods required to my flyable plane to convert it to accept the corvair. As for the choice for an ignition system, I've had discussions with others, Ron Eason in particular about full blown EFI systems. I feel that they can be adapted to the VW or corvair. But, like Mark L and others have stated in many different ways, If your reason for building the KR is to have a plane to fly, you have to stop building and changing the thing and get it into the air. I can guarantee you that once it fly's you won't want to change many more things that keep you from getting that Yeeeee Haaaaa feeling.
Orma Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/