Denny, without having your car on the dyno with me, I would not be able tell you exactly what to change. NA tuning is very subtle, and although we follow general guidlines, each car is very unique. One 370Z may make best power at 12.9:1 AF, and another may prefer 12.3:1 AF. This is why the canned Cobb tunes probably don't yield too much power. It's a whole different story with a car like the GT-R, in which we can push a few keystrokes, and make 50-70whp just from tuning...no mods. That said, if you have any datalogs from the dyno pulls you made, please email them to me.
sharif@forgedperformance.com
Here is one of the dynos from Ben's car. Although we never had the opportunity to baseline his car, all the other 370Z's and G37's we tested are very close to 250whp on our dyno. So in this case, we are seeing roughly 40whp improvement from just HFC's and exhaust...no tuning.
Your baseline on the DJ seems very close to what others are seeing on that particular brand of dyno (280-287whp).
