I noticed something interesting about the rules. You are allowed to remove the vibration damper, however doing so causes the crank sensor to no longer have a signal. 
Vibration Damper Removal
traqrat
#1
victorhall
#2
I think the vibration damper refered to is the one on the transmission output. Some of the earlier cars had a very inconvenient piece that covers the guibo, and makes removal of the driveshaft a huge pain. Not to mention that it rubs aftermarket shifter.
-Vic
SO #325
mrussell
#3
victorhall wrote:
[quote]I think the vibration damper refered to is the one on the transmission output. Some of the earlier cars had a very inconvenient piece that covers the guibo, and makes removal of the driveshaft a huge pain. Not to mention that it rubs aftermarket shifter.
-Vic
SO #325[/quote]
Ahh, yes, I made that thing explode at Pocono North last fall. I had to drive all the way home in 4th gear to keep the shift-selector rod from interfering with it. Once I got home and got the driveshaft out, I was able to rip the remains of that damper out with my bare hands.