| RE:Roughly how far behind is the digital tach? |
Subject: RE:Roughly how far behind is the digital tach? by dan0617 on 2008/2/29 3:17:38 I tried datalogging with WinALDL. Seems to work ok but it idles up a couple hundred when hooked up and the car cuts out or misses a little while hooked up and data is streaming. Don't know why. Also the tach is behind in the software too. Probably because so much information comes thorugh the same wire on the ALDL connector in the car. Sometimes it would show the 1-2 shift at like 5200, other times up to 5600. I think it is higher than that. It shows the 2-3 shift at 5650 while the tach in my dash shows it at 5800. The dash tach and the software tach are always right together during normal driving or mild acceleration so I now trust the tach in the dash for the 2-3 shift. I think it refreshes fast enough for the acceleration rate in 2nd gear, or at least close enough. I cut more weight off the inner governor springs so now it is showing 6000 for the 2-3 shift so I figure that is somewhere between 6000 and 6100. The 1-2 shift usually shows 5600 on the tach but I think it is higher than that, just that neither the software tach or the dash tach can refresh fast enough. |
