Quote:
Originally Posted by knightwrider
....These cars were built for the American market at a time the speed limit was 55 mph. ......
I will just find a 617 turbo, which is what I want anyway (who doesn't  ) with its 3.07 diff, and pair it to my 4-spd. ........! |
1. I am not sure MB actually changed their drive ratios due to the US speed limits...
https://en.wikipedia.org/wiki/Speed_limits_in_the_United_States_by_jurisdiction
2. Because a diesel loves a turbo charger... you are likely to get better mileage with the 300 turbo...
3. Check out the threads made by people who have put manual trans behind a turbo 300. Look closely when they mention unwanted vibrations... and note that there are ' anti vibration' modifications to the manual trans...
and I suggest you use a 300 flywheel.... since you trust MB engineers... you will understand that they put a heavier flywheel on there for a reason.
Of course that brings up the question as to why MB did not put a manual trans behind the turbo 300... many people will claim they know that answer.. but I think it has to do with the fact that the turbo does not produce much power until a certain RPM.... and the automatic allows that ramp up without having to slip the clutch....