The speeds in NIsaacs calculations are at 2500rpm. That engine is defueling at those RPM’s without pump mods. The “sweet spot” is @ 1700 and I would consider @ 2100 max for extended drives. With the numbers you gave, 46” tires, at 1700rpm in direct 1:1 gear you’ll be running 37.5mph and with the 0.80 OD it will be 47mph. At 2100 that bumps it to 46 and 58.
The engine plate says 190 HP @2300 rpm
It appears the Allison might not be the way to go because of no overdrive.. I may have to look for an OD manual to match
Here is a picture of the ENGINE PLATE. I do not see anything that is nine digits. I only got a partial frame slice with no vin from the original international bus
#ad
I cleaned mine up since you have the vehicle info in yours.Well, I got treed.....
Your ESN, as Tim pointed out, is 45390664.
This is your data plate from QuickServe along with the VIN. The VIN designates it is in a 1997 Freightliner MB-Chassis ISB.
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