Aquamist myths and views... HFS-5

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Apr 16, 2007, 01:43 PM

#16

Richard L

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Quote:

Originally Posted by evovin

how does this kit compared to perrins?

The perrin kit is very much a plug and play system compared to HFS-5. For day to day usage, the perrin kit is *most* suitable. (corrected 22-Apr-07)

For all out power, the HFS-5 has more options.

Last edited by Richard L; Apr 24, 2007 at 01:45 PM.

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Apr 18, 2007, 10:35 PM

#17

rocket motor

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Quote:

Originally Posted by Richard L

There are several ways you can save fuel:
- replacing dumping fuel as in-cylinder coolant - dump water instead.
- Enable more timing with low octane fuel - raising the effective octane.
- Run excessive CR or boost and bring the combustion temperature down with Water.

The above conditions are mainly related to medium to WOT. For longer term economy, you need to have a higher CR.

How high can you raise the compression in a turbo engine like the Evo? I imagine you would shave the head vs. get new pistons. If you raise the compression, doesn't that essentially limit your car to operation with water injection all the time, or would the ECU pull timing because of detonation?

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Apr 19, 2007, 02:32 PM

#18

Richard L

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On the evo, you can raise the effective compression ratio by increasing the boost.

If you are raising the static compression ratio as described by you, you wil have to run WI from mid throttle onwards all the time.

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Apr 22, 2007, 10:49 PM

#19

rocket motor

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So wouldI be correct in assuming that cruising on the highway at 3200 rpm, that the water injection would be of alomst near nil effect on increasing the fuel mileage?

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Apr 23, 2007, 04:19 AM

#20

evovin

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where can i buy the hsf-5? do you have an authorized dealer here in the US?

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Apr 23, 2007, 04:32 PM

#21

evovin

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richard L... ^^ ?

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Apr 24, 2007, 01:49 PM

#22

Richard L

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Quote:

Originally Posted by rocket motor

So wouldI be correct in assuming that cruising on the highway at 3200 rpm, that the water injection would be of alomst near nil effect on increasing the fuel mileage?

If you inject water at those cruising conditions, you might get a degree of two advance due to absence of knock when the active knock control system slowly advancing the timing. Knock can exist because the afr is very close to stoichiometric

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Apr 24, 2007, 01:53 PM

#23

Richard L

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Quote:

Originally Posted by evovin

where can i buy the hsf-5? do you have an authorized dealer here in the US?

Sorry, I missed this message.

Please contact Jack (our US representative) John Blalock [jackblalock(AT)gmail.com]. He will help you getting one.

Alternatively, you can ring try anyone form the link below:
http://www.aquamist.co.uk/sl/plist/frm-4-USD.html

Richard

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