Turbo Chubby parts

[Greg Hermann]

At 9:16 PM 12/24/01, Bruce wrote:
>From: "Bob - Uni" <rcs07 at uow.edu.au>
>Subject: Re[2]: Turbo Chubby parts
>> It is interesting that on the graphs of cylinder pressure under
>> knocking on that website
>> (http://www.aquamist.co.uk/dc/technic/technic.html) that under knock
>> the pressure doesnt just suddenly rise, but also has sharp dips as
>> well, why is that?
>> BW> According to the people who make some money from it,
>> BW> (e.g. http://www.aquamist.co.uk) there are several locations where
>> BW> you can introduce water injection for a variety of benefits. There's
>> BW> no "perfect" location. Upstream of the intercooler is best for
>> BW> vapourization, adding to the effectiveness of the intercooler
>> BW> (charge density) and distribution from a single jet.
>
>Up stream of the intercooler can lead to excessive corrosion of the
>intercooler.   Not all are meant to deal with really high water temps, or
>stream.   The erosive, and corrosive effects of steam shouldn't be ignored.
>Bruce

For those with a serious concern about corrosion of IC's, there is a
coating called "Heresite" which is used on aluminium finned HVAC coils
which are going to see unusually corrosive environments. It is not as good
as copper fins, which of course is a lot more $$$, but it works pretty
well, and doesn't screw up the heat transfer excessively. Don't know for
sure, but it can probably only be applied to the outside (ambient air)
surfaces of an IC coil.

BUT--there are some big (huge might be a more appropriate word) gains in IC
efficiency which can be had by spraying a water mist on the ambient air
side, so-----

Greg


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