Water Injection (Was: Re: Wide Ratio O2)

[Robert Humphris]

Sorry, I had better put my previous post into some context, water
injection that I have experienced is only any good for Turbo
applications, injecting water does impare total power output, but what
it allows is more boost to be run without detonation, so even more boost
can be run thus overcoming the slight power loss, to summize; injecting
water is one step backwards, but the cooling it provides allows you to
take three steps forwards, which means that on aggregate to are two
steps ahead...

Injection is started at anything over standard boost, by way of the
overboost pressure switch that most of these turbo cars have.

I an NormAsp engine I would be tempted to fit a switch on the throttle,
which at full throttle would inject ethanol into the engine.  Ethanol
gives good power and is not mixture sensitive like petrol... it would
help with overtaking!

Rob

>----------
>From: 	Bernie Jacobsen[SMTP:bcjac at ix.netcom.com]
>Sent: 	Tuesday, March 24, 1998 1:08 PM
>To: 	diy_efi at efi332.eng.ohio-state.edu
>Subject: 	Re: Water Injection (Was: Re: Wide Ratio O2)
>
>Rob,
>
>Do you see water injection as a substantial benefit on a NON-turbo engine
>(to increase efficiency)?
>Inject ALL the time??? how would this translate to a nat. asp. application?
>
>^Bernie
>>Water injection helps you pass emission tests.  Lean your mixture a
>>little before you go to the testing station, and ensure the water is
>>being injected all the time.
>>
>>The one problem I can see with water injection is that of rust.  What I
>>would like to do is get one of the Bosch fuel pumps that can be shimmed
>>to give 150psi, and use an injector. trouble is that these will probably
>>rust unless I run some anti freeze as well.
>>
>>Rob Humphris
>>
>>
>>If you are thinking of using a cone shaped hat for water injection, make
>>sure it isn't a paper one.
>>
>>>
>>
>
>