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Gasoline: Ford 7.5L (460) Class-A, '82-98
Test vehicle: Non-catalytic coverter equipped Class-A motorhome
Transmission: Ford E4OD automatic
Weight: 16,650 lbs.
Horsepower and torque measured at rear wheels.
|Horsepower, best gain||100 hp (4400 rpm)||185 hp (4400 rpm)||+85 horsepower||85% more (4400 rpm)|
|Horsepower, peak-to-peak||178 hp (3200 rpm)||243 hp (3700 rpm)||+65 horsepower||37% more, peak-to-peak|
|Horsepower, upshift point||100 hp (4400 rpm)||185 hp (4400 rpm)||+85 horsepower||85% more (4400 rpm)|
|Torque, best gain||227.1 lb-ft (3700 rpm)||344.9 lb-ft (3700 rpm)||+117.8 lb-ft torque||52% more (3700 rpm)|
|Torque, peak-to-peak||333.5 lb-ft (1800 rpm)||393.9 hp (2000 rpm)||+60.4 lb-ft torque||18% more, peak-to-peak|
|Torque, downshift point||310.4 lb-ft (2800 rpm)||384.5 lb-ft (2800 rpm)||+74.1 lb-ft torque||24% more (2800 rpm)|
|Exhaust gas temperature (at full power)||1,712 F||1,488 F||-224 F||13% cooler|
|Exhaust backpressure (at equal airflow)||9.75 in/Hg||2.5 in/Hg||-7.25 in/Hg||74% less backpressure|
|Air cleaner vacuum (at equal airflow)||21.8 in/H2O||6.3 in/H2O||-15.5 in/H2O||71% less restriction|
|Acceleration, 0-60 mph time||25.45 sec||21.07 sec||-4.38 sec||17% quicker|
|Acceleration, 0-60 mph distance||1,388 ft||1104 ft||-284 ft||20% less distance|
|Acceleration, 40-60 mph time||12.90 sec||10.17 sec||-2.73 sec||21% quicker|
|Acceleration, 40-60 mph distance||966 ft||742 ft||-224 ft||23% less distance|
|Maximum speed, hill-climb (6% grade)||58 mph||69 mph||+11 mph||19% faster|
|Fuel economy (max. speed, 6% grade)||7.65 mpg||8.57 mpg||+0.92 mpg||12% better mileage|
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