safc tuning

[V8KLR]

I know that the SAFC is RPM based instead of load based. I just got a water injection kit for my car and i'm going to run 93+water/alcohol mix at 15PSI (i'm currently running 9-10 PSI with no knock on 93). Will I have to tune the SAFC richer for more boost or will the extra air the MAF see's plus the water injection be enough to keep knock down?

 

[romeen]

Typically the WI will allow you to lean out your AFR's. Many guys end up running 12.0:1-12.5:1 at WOT with good results. But as always you need to monitor things using the datalogger and preferably a wideband as there are lots of variables which will affect your final tune.