Water Injection and O2 values

[tabio42]

Does straight water injection affect wideband O2 readings? Anyone know?

[nothere]

I think I read it had a very small effect on wb readings, iirc it was a little each way from 14.7

[LiquidLife]

You plan on using straight water?

[LiquidLife]

straight meth is the best way to go isn't it?

[nothere]

iirc, the effect on afr readings is slight. prolly less than the differences you would have between different sensors.
like a couple of tenths either side of 14.7.

[tabio42]

Cool beans. I just want to make sure that water doesn't cause AFR readings to go rich. Otherwise I'd be running leaner than I want to.

[StockEVO]

Plenty of meth in 909, 951, and 760. The deeper you go the more potent it is.



straight meth is the best way to go isn't it?

[taenaive]

Oxygen is the only thing the sensor cares about. If you are rich, you are rich. whatever mixture you are put it in with air doesn't affect the reading of the O2.

water is not a fuel. water is used to lower the intake charge only. 10 degree lower intake charge only gives you 1% of power increase.

Running pure meth will give you the most gain. you can extract so much more power from in cylinder cooling and raised octane rating using the meth.

[tabio42]

There's a toss up about this. I run 50/50 because my pump only supports that much meth. But water does have a very good in-cylinder cooling effect as well as being a knock deterrant (water has 'infinite' octane). Methanol has 100-104 octane which is great to increase the octane level in our crappy gas here and also burns very cool which is good for lowering EGT's. So yeah. Monkeys.