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Old 01-26-2005, 05:11 AM   #1
WhiteKnight
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Black - Rotated gt3037s

Question What does Water injection change ?

Does it affect AFR's ?

For example i tuned my car for 11-1 AFR till redline and turn the WI on.

What does it change ?

Is there any link for explanation for the water injection system ?
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Old 01-26-2005, 06:18 AM   #2
wrx plus
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There used to be a water injection forum at www.turboice.com, moderated by Aquamist guru Richard, but I think the name's been changed to www.waterinjectionforum.com
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Old 01-26-2005, 10:34 AM   #3
Element Tuning
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It doesn't change the AFR reading significantly but what you see is a large drop in EGT and a loss of power. Leaning out the AFR to restore EGTs, adding some ignition timing, and maybe a touch more boost and I usually net about 20 whp with WI.

Thanks,
Phil
www.elementtuning.com
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Old 01-26-2005, 10:38 AM   #4
pezman04wrx
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There are alot of good posts, as well as many links in this thread ... Hope it helps out ...http://forums.nasioc.com/forums/show...ater+injection
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Old 01-26-2005, 11:08 AM   #5
WhiteKnight
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Thanks !
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Old 01-26-2005, 02:44 PM   #6
SaabTuner
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It also tends to require much more ignition timing to be effective; it delays the flame development angle.

The advantage of WI over excess fuel is that the fuel slows both the development and rapid-burn angles, whereas WI only slows the development angle. A slow rapid burn angle is highly inefficient.

Adrian~
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