While driving last night, I tried to pay attention to this.

I did notice there was a very very brief period where the tach stayed in place. I did not ever see it actually rise at all. After that, it began a fairly steady fall. I should be picking up the Alfa tonight and will pay attention to how responsive that is to falling off (just for a data point with virtually no computer equipment in it at all). The old 900's down for the moment otherwise I'd compare to that.

I wonder if maybe there's a bit of a disconnect between eye and foot though. At the top of the pedal, there is little pressure so perhaps when we're 80% off the accelerator, our brains perceive that we are now fully off. With the clutch disengaged (pedal engaged), the engine would spin easily and might maintain or even raise RPM's as we move our foot off the remaining 20% of the pedal. Just a theory - not trying to say you (or anyone) isn't seeing this but it struck me that the RPM's just held ever so briefly in my car and given the speed with which I moved my foot off the pedal, maybe that was it???

Similarly, if you begin disengaging the clutch (pushing the pedal), before you start moving off the accelerator, you should get a little blip on the tach. Same concept but different perspective.

Opinions?

My gut says that the clutch is just so light on our 9-5's that we tend not have as much feel as some of the other cars we drive. I know my 328i's clutch was heavier, as is the Alfa.

Bryce

00 9-5 Aero
85 900S
83 Alfa Spider

• How to shift Aero 5-spd (long), Doug, Mon, 16 Jul 2001 15:35:28
  • Try to shift between 3200-3500 RPM in Town, Coolknight, Wed, 18 Jul 2001 07:07:59
    • Can you provide more info on the shift linkage? Thanks! n/m, Doug, Wed, 18 Jul 2001 11:48:57
      • I asked Hirsch-Performance about this, Coolknight, Thu, 19 Jul 2001 02:46:58
  • More info on audible vibration, Doug, Tue, 17 Jul 2001 14:37:40
    • No vibration from steering column BUT..., Bryce, Tue, 17 Jul 2001 15:07:17
      • Measures against rough idle, Coolknight, Thu, 19 Jul 2001 02:49:16
  • Same situation with Viggen?, Derek Gentry, Tue, 17 Jul 2001 12:17:24
    • Re: Same situation with Viggen?, Bob M, Tue, 17 Jul 2001 12:36:18
  • Re: How to shift Aero 5-spd (long), russdog, Mon, 16 Jul 2001 17:12:06
    • Re: How to shift Aero 5-spd (long), Doug, Tue, 17 Jul 2001 14:27:00
      • Re: How to shift Aero 5-spd (long), russdog, Tue, 17 Jul 2001 22:57:10
  • My experiences, Bryce, Mon, 16 Jul 2001 16:50:32
    • Follow up on RPM's not dropping, Bryce, Tue, 17 Jul 2001 15:05:13 <-- Viewing This Message
    • Our Aero shifting experience (and seat diatribe), David & Julie, Tue, 17 Jul 2001 10:39:14
      • Agree 100%....more, Manumad, Tue, 17 Jul 2001 13:15:03

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