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722.3 in racecar
buzzboy Offline

Posts: 45
Joined: Feb 2014
Location: Wilmington, NC
722.3 in racecar
We've got a 722.3 out of a W124 300D behind a stock OM606. Is there a way to up the line pressure but still get normal shift points or shift manually? I don't have much time left to build a linkage for the bowden cable. If I adjust the cable to think it's under full throttle will the car still shift, or will it only shift at max RPM?

I drove a 928 with the 722.3 and it was semi manual. It did not shift unless the shifter was moved to the next gear and it shifted very firm. I don't know what was done to make it work like that but that's really what I'm after for our 722.3.
08-09-2019, 01:33 PM
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Petar Offline
7.5mm M pump

Posts: 446
Joined: Feb 2014
Location: Serbia
RE: 722.3 in racecar
AFAIK the bowden cable controls the shift points, vacuum controls shift firmness. If you disconect the bowden cable it will shift as early as possible, no vacuum and it'll shift as hard as it can. Then you can shift manually to delay the shifts
08-13-2019, 08:42 AM
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