#21
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Re: new install, pre turbo water injection
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In my experience , water works best because of its cooling properties ! Infact since water has four times the cooling ability of methanol , you would need substantially less (1/4 the amount compared to a 50/50 mix) !! All that is required is leaning out your maps to where they should be and advancing ignition timing not more than 2 to 3 degrees at any one point .I usually stick with the lower number for safety reasons. After you have played around with this you should see some decent gains ,if not then go bravely into the world of methanol injection . |
#22
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Re: new install, pre turbo water injection
There many factors in play. Water's best attribute is detonation resistance. It will cool IAT's some, but the evaporation point is high relative to methanol. You will never get close to ambient temps in the inlet track with water.
Methanol on the other hand will cool to well below ambient temperatures in the inlet track. Yes, the latent heat is much less than water, but the flash point is much lower giving lower ultimate temps. We have run 40F less than ambient before in the inlet track with 100% methanol. The drawback is you are adding more fuel that needs to be accoutned for. On many cars, just adding water will cool the inlet temps a little, then adding a bit more the car will loose power. If using water solely for inlet temp reduction on a near stock car, the numbers may not be dramatic. There is no magic pill for setup with certain ratios and cars. Each application needs to be looked at for injection system capability, car use, tuning capabilities(ECU) etc. I have seen 100% water work great on some cars and applications and the complete opposite on other cars. |
#23
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Re: new install, pre turbo water injection
Some good info here thanks guys, I'm in the process of installing an engine dyno so I can experiment and log things much easier. I doubt however that the waterbrake dyno I have will be able to handle the power of my engine on full chat for long, but it should give me an idea of whats going on.
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