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PowerPack Bundle, for 1988-1995 GM 454 Class-A Motorhome 7.4L, EFI

PowerPack Bundle for 1988-1995 GM 454 Class-A Motorhome 7.4L, EFI

49069
Pass, merge, climb effortlessly + 19% better MPG
Banks PowerPack includes stainless-steel TorqueTubes, the industry's only exhaust manifolds specifically tuned for use in motorhomes. Banks scouts out factory-bred sloppiness and restrictions, replacing them with free-flowing, durable intake and exhaust components that work in concert to optimize power, torque, mileage and durability.
US Patent #6,634,171 B1
Emissions Compliant: D-161-33, D-161-49
Fits Class-A motorhome EFI (see fitment notes)
Was: $2,332.00
Sale: $2,098.80
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Description

Ultimate RV Power System

Eliminates factory restrictions with free-flowing intake and exhaust components. Banks PowerPack includes stainless-steel TorqueTubes, the industry's only exhaust manifolds specifically tuned for use in motorhomes. Banks scouts out factory-bred sloppiness and restrictions, replacing them with free-flowing, durable intake and exhaust components that work in concert to optimize power, torque, mileage and durability. PowerPack attains top gains of +79 hp and +96 lb-ft torque, with 19% better fuel economy - without expensive high octane. Test vehicle: 31-foot GM 7.4L motorhome, P-30 chassis, throttle-body injected. Horsepower and torque measured at rear wheels. Important: Some vehicle configurations require an extension kit for proper fit. Wheelbases over 178 inch require exhaust extension kit. Wheelbases shorter than 158 inch require some custom installation. Measure wheelbase length from center front wheel to center drive wheel

PowerPack attains top gains of +79 hp and +96 lb-ft torque, with 19% better fuel economywithout expensive high octane.

  • Optimizes airflow, air density, continuous power & MPG
  • Honors the host vehicle & improves longevity
  • Top gains: +79 hp and +96 lb-ft (rear wheel), plus 19% better fuel economy
  • CHROME tip

Emissions Compliant: D-161-33, D-161-49
US Patent #6,634,171 B1

Important: Some vehicle configurations require an extension kit for proper fit.

Single-air pump

Dual-air pump

Electronic Fuel Injection


Testing

Test vehicle: 31-foot GM 7.4L motorhome, P-30 chassis, throttle-body injected

Horsepower and torque measured at rear wheels.

GM 7.4L Motorhome Rear-Wheel Horsepower
GM 7.4L Motorhome Rear-Wheel Torque
PowerPack System Stock Banks Improvement Results
Horsepower, best gain 142.9 hp (4400 rpm) 221.4 hp (4400 rpm) +78.5 horsepower 55% more (4400 rpm)
Horsepower, peak-to-peak 177.0 hp (3300 rpm) 233.3 hp (4000 rpm) +56.3 horsepower 32% more, peak-to-peak
Horsepower, upshift point (at wide-open throttle) 146.0 hp (4300 rpm) 224.0 hp (4300 rpm) +78.0 horsepower 53% more (4300 rpm)
Torque, best gain 186.8 lb-ft (4200 rpm) 283.1 lb-ft (4200 rpm) +96.3 lb-ft torque 52% more (4200 rpm)
Torque, peak-to-peak 342.3 lb-ft (1800 rpm) 402.9 lb-ft (1800 rpm) +60.6 lb-ft torque 18% more, peak-to-peak
Torque, downshift point (at wide-open throttle) 312.1 lb-ft (2600 rpm) 393.5 lb-ft (2600 rpm) +81.4 lb-ft torque 26% more (2600 rpm)
Exhaust gas temperature 1,552F 1,388F -164F 11% cooler
Exhaust backpressure (at equal airflow) 7.5 psi 0.75 psi -6.75 psi 90% less backpressure
Air cleaner vacuum (at equal horsepower) 17.0 in/H2O 2.4 in/H2O -14.6 in/H2O 86% less restriction
0-60 mph acceleration, time 24.19 sec 18.38 sec -5.81 sec 24% quicker
0-60 mph acceleration, distance 1,325 ft 1,008 ft -317 ft 24% less distance
40-60 mph acceleration, time 12.73 sec 9.42 sec -3.31 sec 26% quicker
Maximum speed, hill-climb (6% grade) 57 mph 68 mph +11 mph 19% faster
Fuel economy (over 7,000-mile test route) 6.90 mpg 8.25 mpg +1.35 mpg 20% better mileage
Best Gains
+58 horsepower
+64 lb-ft torque
11% better mileage

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Details

Shipping Information

  • Item Requires Shipping
  • 226.0 lbs.
  • W22.0000” x H14.0000” x L57.0000”