2001 Coldside, ELF, water injection, 100mm pulley

[Banshee]

http://upload4.postimage.org/392443/DJdyno_2.jpg (http://upload4.postimage.org/392443/photo_hosting.html)
http://upload4.postimage.org/392444/airfuel_2.jpg (http://upload4.postimage.org/392444/photo_hosting.html)


I guess this will have to do for now. I think the 105 pulley will probally get me into the 180s.

[Banshee]

The air/fuel was taken from the tail pipe. Am I correct to assume that the real value is about 0.5 lower?

[Tom @ Fast Forward]

Yes. About 0.5 leaner depending on the condition of your cat. That looks worrysome lean at the top.

[Banshee]

wouldn't that put me at 12.2 at redline? That's bad right?

[Tom @ Fast Forward]

From what I've seen in the past, it is the direction that worries me more than the number. The slope of that line is pretty steep headed north. It would be 12.2 at best IMHO. Depending on the quality of your cat, it could be 12.5. Maybe one of the WI experts will pop in and tell us how WI effects A/F. My gut reaction is that it should have no effect or mabe make it a touch richer but not leaner. BUT, I really don't know. I do know who to ask and will be over there tomorrow and ask them.

[Banshee]

From my very limited understanding of WI, you can run a little leaner as water is used for cooling and hence less fuel is needed strictly for cooling.

[99mx5]

Water also acts as an octane booster and lowers the flash point of the fuel.