1997 V10 RPM's

Thanks for the input everyone, I appreciate the helpful information.

Get a Scangage best thing u can get for that eng

Those obdii plug in gauges have rpm readout I have one on mine. Haven't done the measurements your looking for

I have a 98 on that chassis (or one very similar). If you know your rear end ratio, you can do math to figure out the relationships. I think I have a 4.10 rear axle ratio, and I think that may have been the only option with the E-SuperDuty chassis of the era, but I'm not positive about either point. If it's an E-350, there options may also have been different.

At any rate, I agree with carringb; let the computer figure out the shifts, and don't be afraid to let the engine go like gangbusters when climbing hills. It may sound as though it's going to thrash itself to pieces, but it won't and the powerband is at relatively high RPMs. For descending, downshift as needed to keep control without overusing the brakes.

I would have one installed.

https://www.summitracing.com/search/part-type/tachometer-gauges/engine-type/v10?N=4294904100

I wind 2nd gear all the way up to 60+ MPH. If you aren't winding it out, you aren't using the power it has available.

!st gear is good for a little over 30 MPH, but you can wind it out a little higher if 2nd a too tall for a really steep climb.

For the most part, just mash the pedal to the floor, and let it upshift. Remember those shift points, and those are conservative downshift speeds as well. The PCM won't let you overspeed the motor.