I'm hoping that might be it I run about 19 to 23 psi boost and I guess turning it on at 14 to 15 psi might be abit late .I have retarded my advance [thru the computer] and did help somewhat and the fuel ratio is good. On the dyno in 4rth gear at wide open thottle it was ok. No detonation but on the street in lower gears [2nd and 3rd] it would show up. What do you think about using NO alchohol? I'll ry turning the water injection on a 7 to 10 psi and see what happens
Thanks for the input,,,I'll try it.
Thanks,
Sato
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Originally Posted by PuntoRex
My experience with 1s is it'd be better start injecting water at about 50%~60% of full boost, or even sooner. Since the pressure from the pump would not go to the top instantly. Trigger it sooner will let it deal with coming high boost better.
The effect is very obvious especially at the urgent upshift slam as you mentioned.
Or maybe your ignition is too aggressive or lean out or both....
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