A google search of forged Corvair cranks shows a company named Magnificent Machine producing a forged crank for the Corvair engine for about $ 1200 and change. I bit pricey at about double the price of a forged crank for a SB Chevy. When I try to access their website I get an HTML error.
I also read where someone in the Corvair college community stated that all Corvair cranks are forged but the 65 and newer cranks are the ones you want. Now, I am not a Corvair guy as I have a Great Plains VW 2180 but I have been interested in the Corvair as I love the car and my experience with 6 cylinder engines in aircraft prove them to be so much smoother then 4 cylinder engines. However, I have hesitated to build a Corvair because of the crank issues and like many thought the 5th bearing was probably going to be the fix. I no longer feel confident in that assumption. Now I can not remember the last time I heard of a VW crank failure. For that matter I have not heard of a VW failure and I even recall a guy broke a prop on his VW on his way to Sun N Fun many years ago. I talked to him at a forum and with as much vibration he had with half a prop, his VW crank and motor stood up. All that said, I dont want to get flamed by the Corvair crowd. Remember, I love them, just dont think I want to fly behind one now. I also would have a hard time finding anyone who has more knowledge about engines then Steve Bennett at Great Plains. Steve and Linda have always gone way beyond any expectations I could possibly have for a supplier. In fact, I can not think of a single time that Steve did not return my calls within the same day. GPAS VW engines have been flying for years , I would go as far as saying I could not think of a better company or person to do business with. So, I guess if I want a bigger motor, I guess I will probably go with a GPAS type IV. Jeff York KR-2 Georgetown Scott County FAA airport of the year 2010 KR Gathering Peoples Choice and Best Interior 2011 Air Fest Best Experimental, Best instrument panel ________________________________ Given that this engine has become such a popular powerplant for experimentals, I would have thought someone would be building a forged crank for this motor by now since it is the "heart" of any engine. Forged cranks ended the crankshaft failures with the VW's so looks like this is going to be necessary with the Corvairs if anyone is to trust their engines in the future. Good save there Mark and a great write-up, as usual. Mike KSEE ____________________________________________________________ 53 Year Old Mom Looks 33 The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried http://thirdpartyoffers.juno.com/TGL3141/4efaaf8df33665dedaast02vuc _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
