Base Freq. for water injection

[Clare Snyder]

Simon Quested wrote:
> 
> Hi Clare and all
> 
> Clare wrote:
> > What's wrong with using engine rpm to trigger, and just vary the on
> > time?
> 
> Like I said it's simple.
> I'm planing on using it with a knock sensor.

That doesn't change anything. When it starts knoking, turn it on. You
will have to experiment to see how much water it needs to stop the
knock. That will determine your pulse width. You can use a MAP sensor to
sense manifold pressure, and have that adjust your injector on time.


 The knock sensor unit I want to use has 3
> leds showing the amount of knock, I'll set it up so that the water injector turns on when
> the second led comes on hopefully stopping detonation.
> 
> Has anyone ever done/thought of using a knock sensor to control boost ?
> ie keep the boost rising untill it knocks then bring it back a bit.....this would take into
> account air temp, altitude etc and give you max boost for the conditions.......
> 
> Cheers
> 
> Simon
> 
> 
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>   LINCOLN UNIVERSITY OF NEW ZEALAND
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