Well now it turns out I am going to have the rear end worked on. It's gonna be $$, but it should be worth it after it's all done. The other thing that was wrong with my car besides the motor pinging at the auto-x was the rear differential.. I'm getting definite inside-rear wheelspin when I get back on the power out of a corner. Lots of understeer + spinning inside rear makes for a real strange feel exiting... so I'm gonna get the rear end fixed up first to isolate the handling problem, go to the next AAS event and use that as a handling baseline to figure out what I need to change in the chassis setup. The guy who's doing it for me is gonna completely strip out the rear end housing and clean it all out, put new seals, bearings, etc., rebuild the LSD real tight with extra clutches so it'll hold up for auto-x and put a FMS 3.55 ring & pinion in it. Should pick up the acceleration quite a bit.
