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The mkiv Supra Owners Club

AFR Tuning for Meth/Water Injection?


agent.chaos

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Where are you thinking of injecting it??? infront of the turbos or after and before the IC or infront of the throttle body???, the stock ECU should take care of any issues, the only time I would think you would need a remap is if you wanted to alter fueling or throw more timing in as a result of putting the meth/water in, if that makes sense.:blink:

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I was told it goes before the throttle.

 

I'm throwing this question because I was thinking that since it is mixing with air and fuel, I should map it to make it more efficient (I have limited knowledge on this however...)

 

Thats all very well and good if you have a fail safe in the system that detects no injection and brings fueling/ignition back to what it should be ;)

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You shouldn't need to add WI at that level of tune, and if you do then you shouldn't be adding enough water to change the AFRs.

 

You can add a jet either to the outlet of the IC to help with charge cooling, or add a jet to just before the throttle body to help with in cylinder cooling, or you can add both but use smaller jets.

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