| RE:Roughly how far behind is the digital tach? |
Subject: RE:Roughly how far behind is the digital tach? by dan0617 on 2008/3/1 22:35:58 UPDATE: I took your advice, Case, and tried Datamaster. It works better. It is showing the 1-2 shift at 6150 and the 2-3 shift at 6000. That part is right where I want it. I am picking up detonation, bad enough to hear it, from 5500 to 6000 rpms. I talked to Alvin and he basically said when I get a couple good full throttle runs and a nice long normal drive datalogged and saved to send them to him. He is going to go over the tune. He had me set the base timing at 6 degrees originally and he had the tune done for a 100 shot. I had the base timing set at 4 degrees and still got audible detonation at 5500, and it gets some spark retard and knock counts if I am driving and floor it and let it downshift itself. I'm not sure there is a way to get rid of that. Doesn't happen if I launch and make a full throttle run from a stop. I told Alvin when get the datalogs and send them to him I want him to tune for no nitrous. I'm going to add a timing retard box to use when I spray. I was looking into doing my own tuning but I don't want to invest in a chip burner and chip eraser. I think Alvin will get it spot on with a couple of tries. Datamaster should give him the feedback he needs. |
