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’98-03 Cummins ISB 5.9L
Total RV Power System
Gets your turbo on boost faster, and peaks higher; tunes low-end torque for strong response and load-pulling. Up to +40 hp, +92 lb-ft (rear wheel); more MPG; safe EGTs.
Gains Up To:+40 hp/+92 lb-ft
Stinger® System
ISB 5.9L PUSHER: The new Cummins 24-valve ISB 5.9s produce power more efficiently than earlier generations, but Banks still found room for significant improvement. Stinger's Quick-Turbo assembly with BigHead actuator gets the factory-turbo "on boost" faster, and attains a higher peak. Banks OttoMind TLC power-train control unit features electronic functions that perfect air-fuel ratio, maintain exhaust gas temperatures (EGT), and tune low-end torque for strong acceleration and load-pulling capability. Banks Stinger kicks in gains to +40 hp, +92 lb-ft torque, plus improved mileage.
Motorhome Power - Turbo-diesel: Cummins ISB 5.9L, '98-03
Test vehicle: 1998 Fleetwood Discovery 35-foot Freightliner chassis
Engine: Cummins 5.9L ISB diesel, rated at 275 hp, CPL #2080
Transmission: 6-speed automatic Allison MD3060.
Horsepower and torque measured at rear wheels.
| Stinger System | Stock | Banks | Improvement | Results |
|---|---|---|---|---|
| Horsepower, best gain | 212.9 hp (2300 rpm) | 253.0 hp (2300 rpm) | +40.1 horsepower | 18.8% more (2300 rpm) |
| Horsepower, peak-to-peak | 218.9 hp (2500 rpm) | 255.0 hp (2400 rpm) | +36.1 horsepower | 16.5% more, peak-to-peak |
| Torque, best gain | 486.2 lb-ft (2300 rpm) | 577.7 lb-ft (2300 rpm) | 91.5 lb-ft torque | 18.8% more (2300 rpm) |
| Torque, peak to peak | 556.4 lb-ft (1800 rpm) | 624.1 lb-ft (1700 rpm) | 67.7 lb-ft torque | 12.2% more, peak to peak |
| 0-60 mph acceleration: Time | 25.36 sec | 21.28 sec | -4.08 sec | 16% quicker |
| 0-60 mph acceleration: Distance | 1418 ft | 1140 ft | -278 ft | 20% less distance |
| 40-60 mph acceleration: Time | 11.96 sec | 10.29 sec | -1.67 sec | 14% quicker |
| 40-60 mph acceleration: Distance | 903 ft | 770 ft | -133 ft | 15% less distance |
| Hill-climb speed (6% grade) | 58 mph | 62 mph | +4 mph | 7% faster |
System Includes:
| Application | Year Range | Part # |
|---|---|---|
| Stinger system Freightliner/Roadmaster chassis* Allison MD3060 or MD3066 auto trans |
1998-03 | 49242 |
Owners Manual(s)
| Stinger & PowerPack systems (ISB 5.9L, 24-valve) (Part #96398) |  Download |
| Stinger & PowerPack systems (B5.9L, 190/210/230-hp rated) (Part #96385) | Download |
Accolades
“We went to the source of diesel-engine performance, Gale Banks Engineering, and struck gold. Not only did it take one stop to buy and have our parts installed, but the parts worked as advertised and the results were awesome.”
— Off-Road (Mar '04)