Quote:
Originally Posted by Getaway_bus
I'm looking at a 2001 freightliner with a Thomas body. It has the 24 valve 5.9L cummins with a MT545. First I know that the 643 is better in many ways and often preferred. I'm not looking for that debate. I also understand that rear gears and tire size will affect speed ( dont know what the rear gear ratio is but the tires are 10R22.5) my question is what kind of speed can I expect? My dad just purchased the same bus but a year newer with the 643 and on the was home from indiana he was pushing 75mph on flat ground.
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Without knowing your gear ratio no one will know what speed your bus can go except you if you floor it on a long road.
Year of bus makes no difference nor does horsepower. Its ALL gearing. You could have a bus that tops out at like 45 if its from a district that has 45 mph buses. I had one from Cleveland Texas that was limited to 50 in the ECU. That's another thing- it could be electronically limited even if it has highway gearing.
Too many variables make more of guess than "somewhere between 45 and 85".
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