X-15 Cummins thread
Discussion in 'Peterbilt Forum' started by KB3MMX, Feb 26, 2018.
Page 35 of 44
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D.Tibbitt and Dave_in_AZ Thank this.
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Ran the overhead on my new X-15 at 3000 miles.. #6 exhaust was .020".. .002" too tight for tight spec. That was the only one that was off.
NWAF, KB3MMX, Dave_in_AZ and 2 others Thank this. -
Dave_in_AZ Thanks this.
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Dave_in_AZ and magoo68 Thank this.
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NWAF, KB3MMX and Dave_in_AZ Thank this.
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You cant down speed the motor that low. Shouldn't go below 1200. Motor cant stand the down speeding that low.
Dave_in_AZ Thanks this. -
Unfortunately Cummins is trying to keep up with Detroit and Mack/Volvo and the X15 Doesn't seem to be built strong enough in the bottom end to handle downspeed Big TQ at low RPMs.
They advertise peak TQ at 1000 rpm on X15-E-500/1850Dave_in_AZ Thanks this. -
1325 to 1400 it's very happy.jsnell Thanks this. -
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