116's second day on the Shenandoah circuit at Summit Point, WV ended abruptly during the 2nd lap of the 1st session on day 2 of the event.
While in the paddock I was convinced the LSD gave up the ghost . . oh well there goes 2k and an afternoon pulling the tranny.
Once in the garage and up on stands I went through the steps to positively identify the problem. What I found was that the clanking noise was coming from the bell housing, not the rear of the car . . . . great it's the clutch or pressure plate . . . . 500 plus 5 days of wrenching . . . right.
Long story short is that the PO commissioned someone to install a clutch, etc who had no idea what 300 whp will do to a stock 951 set up. After removing everything from the air cleaner to the turbo on the top I could finally get to the bell houseing and then to the PP & clutch. The inner hub of the clutch that is part of the splined coupler that goes around the drive shaft was completely sheared off inside of the outer clutch.
While I was pulling everything off the top of the engine (to get to the bottom) I found oil in the turbo . . . crap . . . to Tim's Turbo for a complete rebuild. And while I was in there . . . . . the stage 3 head and intake that came as extras went to Allied Machine for some cleanup, etc
So where's the porn you say . . . . .
Kennedy Engineering Products P/P 600 ft/lbs of clamping pressure and 57% more than the OE 951 pp.
From Clutch.net, Stage 3 type clutch plate.
Fresh rebuild K27 hybrid with K26/8 compressor and K27 turbine.
Stage 3 head with matched intake. O-rings around combustion chambers.
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'94 CMC Firebird Trans Am
'86 951 LS1 (C-2) Gone


'77 911 3.2 (C-1) Gone but not forgotten.
http://www.pelicanparts.com/MotorCity/marcesq1
http://www.youtube.com/user/958Fan#p/u