[s-cars] Water Injection

[mlp]

Ah ha, there.  Finally found it again.  A slightly better description of the
old Old's system,

http://www.tctc.com/~posumrun/mph/pageCLIP/page62JET/62jet.htm

"....This was solved by adding a fluid injection system. A tank of
"Turbo-Rocket Fluid" (a 50-50 mix of water and alcohol with some rust
inhibitor added) was mounted under the hood. When the turbocharger operated,
it also pressurized this tank and caused a small amount of the fluid to be
injected into the intake between the carburetor and the turbocharger. The
fluid evaporated, absorbing heat from the intake air and preventing
detonation.

Oldsmobile was famous for conservative engineering, and the Jetfire
turbocharger installation was no exception. A warning light informed the
driver when the Turbo-Rocket fluid ran low. If it was allowed to run out, a
butterfly valve in the throttle body closed to prevent full-power
acceleration. The wastegate was operated by two diaphragms in case one
failed. Even if that happened, the cap on the Turbo-Rocket fluid tank would
pop off to prevent overboost. And if boost pressure was still too high, the
butterfly valve would again shut down the party. One Olds engineer told Car
and Driver, "It's 'safetied' to death."

There you go Bruce, ".... a mixture of water, methyl alcohol & a rust
inhibitor...."
and Oldsmobile's famous conservative engineering.   What more can you want
in the way of proven engine safety.  Even the rust inhibitor shouldn't be
any kind of a problem
with all the aluminum parts in the Audi's engine.  :-)

mlp

~-----Original Message-----
~From: s-car-On Behalf Of Bruce

~As usual, I have read so much that I am more confused than when I
~started. (Rod, thank you for the great advice and URLs!!).
~
~In the bang for the buck performance category, and especially
~since my car sees a lot of track time, water or water/alcohol
~injection seems like a pretty good idea. I am going to try it.
~
~