water injection questions

[Thomas Burns]

Stupid Question Coming...

By intake charge, are you referring to the amount of air coming in?

-Tom

At 09:23 AM 7/22/96 +0000, you wrote:
>
>-> A lot of people mix Methanol (50/50) with the water.  Water alone
>-> will act to slow the combustion process; equivalent to raising the
>-> Octane rating (All Octane rating is, is a gauge of how fast a
>-> particular gasoline fuel burns in a combustion chamber).
>
><heavy sigh>
>
> Octane rating has *nothing* to do with how fast the fuel burns.  An
>octane rating is a measure of an engine's resistance to detonation, as
>empirically measured in a standard engine under standard conditions,
>compared to a standard fuel, which is called octane.  Flame front speed
>is very similar for all gasolines regardless of octane rating.
>
> Water does not slow the combustion process.  Its primary function is to
>reduce the intake charge and combustion chamber temperatures, which help
>the engine avoid detonation.
>
>
>====dave.williams at chaos.lrk.ar.us========================DoD#978=======
>  can you help me...help me get out of this place?...slow sedation...
>ain't my style, ain't my pace...giving me a number...NINE, SEVEN, EIGHT
>==5.0 RX7 -> Tyrannosaurus RX! == SAE '82 == Denizens of Doom M/C '92==
>

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