Allison MT Series Transmission Specs - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 1 (permalink) Old 12-27-2007, 04:04 PM Thread Starter
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Allison MT Series Transmission Specs

Hi,

Here are the complete Allison MT (since 1973) series transmission specifications, for those of you who are concerned about power and whether or not your transmission's good enough for your engine.

MT-640/643/650/653DR
Input speed: 2,200-4,000 rpm
Max input power: 250 hp (186 kW) (general purpose); 210 hp (157 kW) (transit/shuttle bus)
Max input torque: 640 lb/ft (868 N-m) (general purpose); 590 lb/ft (800 N-m) (transit/shuttle bus)
Torque converter ratios: TC-380 (1.86:1), TC-370 (2.43:1) and TC-350 (3.09:1)

MT-644/654CR
Input speed: 1,800-3,000 rpm
Max input power: 300 hp (224 kW) (general purpose); 250 hp (186 kW) (transit/shuttle bus)
Max input torque: 780 lb/ft (1,058 N-m) (general purpose); 690 lb/ft (936 N-m) (transit/shuttle bus)
Torque converter ratios: TC-494 (1.92:1), TC-495 (2.21:1) and TC-497 (2.70:1)

MT-647/648
Input speed: 1,800-2,600 rpm
Max input power: 300 hp (224 kW) (general purpose); 250 hp (186 kW) (transit/shuttle bus)
Max input torque: 950 lb/ft (1,288 N-m) (general purpose); 800 lb/ft (1,085 N-m) (transit/shuttle bus)
Torque converter ratios: TC-494 (1.92:1) and TC-495 (2.21:1)

~Ben (Gillig8V71)
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