Re: Octane Boosters - Methanol & MBTE

[s1wood@ibm.net]

Believe it or not, a possible source for this information would be the old
"Car Craft" magazine (I think that is what it is/was called) from the late
'70's early '80's.  I remember reading about water injection and companies
that produced kits for the old muscle cars.  If I remember correctly, yes -
the metering was critical to avoid bending rods and it was developed to
prevent detonation in the high compression, carbeurated sp? performance
V8's, etc.  Check out some back issues and you'll find articles on the
subject.

Scott Wood
'90 CQ
Charlotte, NC 
----------
> From: Robert Houk - WorkGroup Server Firmware <Robert.Houk@East.Sun.COM>
> To: quattro@coimbra.ans.net
> Subject: Re: Octane Boosters - Methanol & MBTE
> Date: Thursday, July 09, 1998 10:16 AM
> 
>    > Another concept I remember reading about is water injection -- cools
>    > down the air/fuel mix . . .
> 
>    It's more complex than that - water heated to steam through the same
>    temperature range that petrol/air goes through in combustion expands
>    about three times as much.  The military use water injection quite a
>    lot, but then they can afford to trash engines frequently.
> 
> Yeah, I kinda remembered that too.
> 
> The big question I have is: other than the immediate lowering of the
> air/charge temp before ignition, does adding water/vapor/steam affect
> the detonation characteristics (i.e., is it in effect an "octane
> booster")?
> 
> 				-RDH