Re: 1991 200q 20V 3B Failure - Swiss Block, Anyone?

[Sargent Schutt <sargent@novagate.com>]

FIrst, thanks everyone for the responses and condolences.

When all is said and done, what are the most common causes of detonation, and
how can they be avoided in high-boost applications? Plugs blowing out (reduce
gap)? Turbo overspinning/ heat soak? Dirty/oily IC (innards)preventing proper
air cooling? I was not running enough HP to bend a rod w/o assistance of
another problem. I had detonation, and that's what overstressed the motor. The
rod broke in the middle. Bent first (this furthers detonation), then finally
broken? BTW, I am in San Diego - sea level, cool dry atmosphere. And the oil
seal was going bad in the turbo, so there was a plenty of oil blowing through
the cold side, and through the IC.

Thanks to any who can contribute to the collective understanding of this
problem, and all who have responded so far. (Sorry for slow responses -I've
been in town only a few days since this mess began) I know there are others
with 'at risk' behavior, hopefully someone can benefit from this...

Regards,

Sarge

Glen_Powell@ne.3com.com wrote:
> 
> All rods & bearings, NA or turbo, are at risk when subjected to heavy
> detonation.
> 
> -glen