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Gasoline: GM 8.1L Workhorse
Test vehicle: 2004 Workhorse W-22, GM 8.1L V-8
Transmission: 5-speed Allison
PowerPack® System with AutoMind | Stock | Banks | Improvement | Results |
---|---|---|---|---|
Horsepower: Best gain (hp) | 222.2 @4200 rpm |
292.4 @4200 rpm |
+70.2 hp | 32% more |
Horsepower: Peak-to-peak (hp) | 222.2 @4000 rpm |
292.4 @4200 rpm |
+70.2 hp | 32% more |
Torque: Best gain (lb-ft) | 302.3 @3800 rpm |
394.6 @3800 rpm |
+92.3 lb-ft | 31% more |
Torque: Peak-to-peak (lb-ft) | 314.2 @3400 rpm |
400.1 @3500 rpm< |
+85.9 lb-ft | 27% more |
Acceleration, 0-60 mph Time (sec) | 23.08 | 18.72 | -4.36 sec | 19% quicker |
Acceleration, 0-60 mph Distance (ft) | 1,252 | 1,001 | -251 ft | 20% less |
Acceleration, 40-60 mph Time (sec) | 11.12 | 8.84 | -2.28 sec | 21% quicker |
Acceleration, 40-60 mph Distance (ft) | 831 | 658 | -173 ft | 21% less |
Maximum speed, hill-climb (mph) 6% grade | 57 (3rd Gear) |
67 (4th Gear) |
+10 mph | 18% faster |
Fuel Economy (mpg) 55-MPH, 7% grade | 2.68 | 3.26 | +0.58 mpg | 22% better |
Fuel Economy (mpg) 70-MPH, 0% grade | 7.19 | 7.78 | +0.59 mpg | 8% better |
8.1L motorhome PowerPack: Best move I ever made
2009-12-22
Purchased the 8.1L PowerPack recently and had a chance to use it this week. Best move I ever made. Excellent system and I will recommend it to any one in need. Your employees are class act. Thank you and keep us on the list of new products.
Guy D.
Hobart, OK
8.1L motorhome PowerPack: Very satisfied!
2010-11-30
I had your exhaust and intake systems with the OttoMind programmer installed and am very satisfied with your product. I get @ 2 miles to the gallon better fuel mileage while towing a 2010 Toyota Yaris. The difference is definetely noticeable. Good engineering job!
Dennis H.
Arizona
If you are considering this system, you've got to read what RV Magazine has to say about it!
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