Total loss electrical systems are extremely risky to use for comp. Especially if you have weak injector voltage compensation which is the case for us since. Actually all the sensors/hardware are voltage compensating so I would plead with you not to go without a stator. We go through this almost daily at Delphi when it comes to problem solving hardware issues. I would advise highly against it and shoot for a battery that doesnt run down (i.e charging system). The biggest difference will be the loss in weight for your goals this year. Other than that testing will show power wise but it should free up some losses and present less interia to get the motor revving up faster. Be sure to have someone read the flywheel section in "Design of Machinery" that Ian had. It will provide you with insight about how heavy the flywheel should be and the effects of power pulsations on the crank. I have always wondered the question about what effect the primanry has as a flywheel mass since it is a flywheel. Variable flywheel at that. If you do use the stock stator, which i highly recommend since you can always get a new stator and/or regulator for cheap and quickly, then you can figure out your magnet to stator gap in terms of a radius from crank centerline, measure the ID of the flyhweel where they would go and then model that in solidworks and have someone wore EDM the magnets out of a chunk of appropriate material. Then find an appropriate epoxy to bond them in.

Pay attention to Brian Lewis from PE Engine Management's comments

http://fsae.com/eve/forums/a/tpc/f/125607348/m/43410336...10446621#93810446621


http://fsae.com/eve/forums/a/tpc/f/125607348/m/59710949...10949441#59710949441

Remember this is a customer vehicle before it is a race car.

Rob, that was pretty much what we plan on doing. The stock stator is just too convenient not to use it and we should be able to get some smaller magnets made for the flywheel without too much of an issue. I'll get the guys who are working on the flywheel to read that section.

By the way give me a call. I lost your number.