Subject: Re: 'normal behavior?' questions. Author: Hitmanx : member since September, 2006 : 2628 posts Posted on: 2010-08-31 17:10:39

Well, the EH in my 750iL behaves like that in 'E' mode. Which to me is silly, the car attempts to get into top gear as quick as possible to 'conserve' fuel... but in reality it lugs it badly. The 3HP in my 745i I cannot really compare as it has no OD and it has been so long since I have driven my Motronic 745i cars I cannot compare there either.

I pretty much never drive an Overdrive trans around town in OD. Try that and see how you feel.

Also, the E23s are pretty undergeared unless driving a manual as they have a deep first gear with a shorter OD ratio... 733i came with a 3.25:1! Late 735i in the E32 came with a 3.91:1 with the auto or 3.64:1 with a manual.

Combination of more gear and driving in 3rd at speeds sub 55mph would make the car far more responsive and not lug at 2000rpm. Apparently the most common, direct fit for the E23 is going to be a 3.73:1 diff from an E30. Evan did a long term with this and total driving only dropped about 1mpg... hardly anything you will even notice.

Also, the stock 059 Bosch programming is very poor. I would chip it if you have not done so. The newer chips out actually add power all over, not just high RPM.


__________________
12/1982 745i Turbo
09/1983 745i Turbo
10/1984 745i Turbo
05/1985 735i ECE/5-speed
06/1988 750iL
And about 10 other vehicles from Ford, MB, and GM.
Oh and a Lolvo V90

• 'normal behavior?' questions. - peeeot 2010-08-30 22:17:18 (952 views)
  • Re: 'normal behavior?' questions. - Hitmanx 2010-08-31 17:10:39 (884 views)
    • Mine is the 4-spd all-hydraulic unit. - peeeot 2010-09-03 11:26:57 (882 views)
      • That downshift switch isn't connected on a non-EH tranny. (nt) - demet 2010-09-03 17:40:09 (1101 views)
        • Hah! I didn't know. What does the wide open switch - peeeot 2010-09-03 23:30:41 (942 views)
          • Lack of WOT signal may explain your leisurely acceleration. (pic) - demet 2010-09-04 08:46:03 (972 views)
            • Re: Lack of WOT signal may explain your leisurely acceleration. - peeeot 2010-09-07 10:50:28 (1334 views)
  • If you have the EH tranny have you tried the acceleration in sport mode? - phathome 2010-08-31 13:19:40 (906 views)
    • My '85 is probably the same as your '84 was. - peeeot 2010-09-03 11:32:36 (894 views)
      • My 85 non EH auto kicks pretty good- - stevebu 2010-09-03 14:30:53 (915 views)
        • How big is the gap - peeeot 2010-09-03 23:29:10 (971 views)
          • Re: How big is the gap - Hitmanx 2010-09-03 23:37:11 (926 views)
            • Re: How big is the gap - peeeot 2010-09-07 10:48:34 (1307 views)
              • Re: How big is the gap - Hitmanx 2010-09-07 23:03:15 (1294 views)