So what is the best way to upgrade your ignition for a blower set up? I'm building a new blower short block and starting from scratch. =(

-B

 

What I think Rich is saying is you tune on the dyno and in each timing cell you put the best possible number in (most power without detonation). If you use a btm, it will make global changes so to speak (meaning either, 0, .5 degrees per #, 1 degree per # etc.). Who is to say that every pound of boost requires a linear retard of timing? Thats Rich's point. Do it on the dyno and atcually tune the ECM and plug in the total timing you want at that given rpm/map reading.