Golden_HVAC wrote:
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Gas engines normally will have more torque on a cubic inch basis, but diesels that have 350 - 400 HP with 1200 foot pounds of torque are typically 10.3 liters or larger. That would be about 620 cubic inches.
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Our 'old' 98 Pace Arrow gasser: Chev 7.4L : I believe it's 290HP at 4000RPM and 440 ft. lbs of torque at 3200RPM
Our 'new' 03 Phaeton DP: CAT 7.2L : 330HP at 2400RPM and 860 ft. lbs of torque at 1400RPM.
Cummins ISB 5.9L: up to 325HP at around 2900RPM and 610 ft. lbs of torque at 1600RPM
Cummins ISC 8.3L : up to 400HP at around 2400RPM and 1200 ft. lbs of torque at 1300RPM.
Cummins ISL 8.9L : up to 400HP at 2200RPM and 1200 ft. lbs at 1300RPM
Cummins ISM 10.8L : up to 500HP at 2100RPM at 1550 ft. lbs at 1200RPM
Gassers do not have more torque per cubic inch.