AFR Tuning After Adding WI

[RICE RACING]

Originally Posted by 2gslse

I have a dumb question. if you tune for H20 injection and the system fails won't you just blow it faster due to being lean?

^ 100% correct.

The idea with water injection is to increase the power over what fuel enrichment only can achieve. < the practical problem is if you ad it ontop of your fuel only settings and nothing else you loose power, for some people increased safety is more what they are after.

I highly recommend everyone interested in this topic take the time to years my multi year 20+ page thread on Aquamists site. This details all of the pro's and cons of water, WM50, fuel settings to enhance power and durability. Everyone's requirements are different as are rules or circumstances etc. For some people it is just better to run 10.0:1 AFR on gasoline alone and use 20psi boost than it is to fuck around with trying to get maximum power on 16psi at some ideal power AFR setting, the richer and higher boost is actually far more reliable (as well as being more powerful).

Same applies for using water injection or WM50 (forget meth! just follow my BDC and HC commentary threads that show how fucked that ideology is, again its well explained on Aquamists site by me). Far better to run WM50 fluid at a "heavy" AFR and use 30psi boost than it is to try 22psi and some dyno queen SAE figure to save face LOL....

It is not an easy science, if it was BDC and HC would have figured it out by now, but for the smart ones in the room it was all figured out in the 19th century! and applied many times over by enthusiasts and engineers alike.

Best thing you can do is read reputable information on a non for profit web site that is not full of banner adds or paying vendors and also fit applicable cars that actually run and have been tested legitimately in the real world with non intendo MS paint type logs but rather F1 spec/grade equipment TIP: You wont find this information on anyone site that mentions AI LOL!!! or has the URL www.rx7club.com !!!!