164 AND SHO, and natural rev limiters

[VLADDS@domain.elided]

First about natural rev limiters:
a)Before injection times i have heard on Alfasud Sprint that the odd shape distributor rotor had actually built in a centrifugal rpm limitator.
Other than that, in my hometown, in Romania, there is a quite large factory that used to build under Citroen license.There is a guy, in the manufacturing process in the engine line, that is in charge with blowing up engines that he selects randomly form the flow, in fully assembled stage.The goal of his work is that,afther the engine's demise, the "authopsy"result should always indicate differenc causes of death.If more that 3 times the cause points at the same element, he is to imediately take action with the supplier of that element.
Now, in the work he used to do, (on carbureted, unlimited -not even mechanically- engines), he installs the engine on a testbench and he begins reving it up.On the car, those boxer engines show in the dashboard a redline at 6500 rpm.On the stand he revs them up to 10 000.His statement was that around that value the frictions naturally limit the revs of the engine and it would go no further(maybe there are other factors too).Next step was to apply a brake to the flywheel and slow down to a preset value.troughout this the engine remained operational.Third step was to release suddenly the brake of the flywheel, that would cause invariably the engine to fail, from diferent causes.
This is what i have heard, other digesters might know more, coments are wellcome (especially if the factory would decide to throw a word or two in this digest..).
b)I also saw the SHO as a possible competition to the 164.There are 2 versions.The old, more sqare one has the Yamaha engine, revvs high and I have been a little faster in the L i have, over 80 in 4th.this square one has a certain amount of fans and is mostly encountered in a 5 speed.There is the new bubbly style SHO with a detuned or not V8 that is heavy and has had a lot of critic from former SHO owners (as i was able to see in a thread in Automobile magazine).It was said that it's kinda slow and handles so-so.
Vlad
'91 164L (5speed) 

------------------------------