Shoulda kept my mouth shut, and not asked last week when to call it quits http://www.stromtrooper.com/showthread.php?t=31996 - Sunday in Minnesohta we had winds gusting to 50, sleet and snow. So I took it as an opportunity to sync my throttle bodies. Given several interruptions and my meager mechanical experience it was an all-day job, even with the excellent sticky how-to here, but it was definitely worth it: my engine is *much* smoother now, idle at 1100 is rock-steady, and it seems to have added a couple of hundred rpms to the low-end useful range of 3rd and 4th gear. And now I'm intimately familiar with the undersides of my throttle bodies.
One odd observation came out of this though: with the gearbox in neutral, it seems to be impossible to smoothly increase the revs from idle all the way up. From 1100 to 1600 is nice and linear, then the tiniest bit of additional pressure on the throttle and the revs jump to around 2300, from there it becomes nice and smooth again. Some (older) review of the Vee complained a bit about jumpiness off idle, but I have no idea how this behavior in neutral would affect brake-throttle transitions under real load.
Is this a property of the injector map? Should I care? Would a PCIII or Dobeck TFI fix it, assuming that it actually is something that needs to be fixed?
Greetings, Jim
One odd observation came out of this though: with the gearbox in neutral, it seems to be impossible to smoothly increase the revs from idle all the way up. From 1100 to 1600 is nice and linear, then the tiniest bit of additional pressure on the throttle and the revs jump to around 2300, from there it becomes nice and smooth again. Some (older) review of the Vee complained a bit about jumpiness off idle, but I have no idea how this behavior in neutral would affect brake-throttle transitions under real load.
Is this a property of the injector map? Should I care? Would a PCIII or Dobeck TFI fix it, assuming that it actually is something that needs to be fixed?
Greetings, Jim