On Aug 27, 1:14*am, Ron Wanttaja wrote:
On Tue, 26 Aug 2008 21:07:46 -0700 (PDT), "

wrote:
everyone says "ooh -- auto...dangerous" but no
one can explain exactly why.

1. Ignition systems with insufficient redundancy.
2. PSRU failures.
3. Difficulty in implementing efficient liquid cooling systems.

Ron Wanttaja

The ignition system redundancy is surmountable but doing so will
increase weight as does the PSRU. However PSRU and liquid cooled
engines predate the current trend of using high preformance automobile
engines. This however does not infer that problems and short service
life of the PSRU and engine have not always been an issue with
avaition engines.

Joe