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Test Results
Turbo-diesel: 7.3L Power Stroke, '94-97
Test vehicle: 1997 F-250 heavy-duty crew-cab pickup • 4-wheel drive • 4.10 gear ratio • Solo vehicle weight: 6,850 lbs • Towing combined vehicle weight: 17,480 lbs.
Horsepower and torque measured at rear wheels.
| PowerPack system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak-to-peak |
179.9 hp (3000 rpm) |
293.8 hp (3000 rpm) |
+113.9 horsepower |
63% more, peak-to-peak |
| Horsepower, best gain |
149.7 hp (3300 rpm) |
272.0 hp (3300 rpm) |
+120.0 horsepower |
80% more (3300 rpm) |
| Horsepower, upshift point* |
149.7 hp (3300 rpm) |
270.0 (3300 rpm) |
+120.3 horsepower |
80% more (3300 rpm) |
| Torque, peak-to-peak |
378.1 lb-ft (1900 rpm) |
616.2 lb-ft (2200 rpm) |
+238.1 lb-ft torque |
63% more, peak-to-peak |
| Torque, best gain |
353.6 lb-ft (2400 rpm) |
609.7 lb-ft (2400 rpm) |
+256.0 lb-ft torque |
72% more (2400 rpm) |
| Torque, downshift point* (lb-ft) |
373.4 lb-ft (2000 rpm) |
604.0 lb-ft (2000 rpm) |
+230.6 lb-ft torque |
62% more (2000 rpm) |
| Exhaust backpressure (at equal horsepower) |
2.7 psi |
0.8 psi |
-1.9 psi |
70% less backpressure |
| Air cleaner vacuum (at equal horsepower) |
7.50 in/H2O |
0.25 in/H2O |
-7.25 in/H2O |
97% less restriction |
| Peak boost (at maximum power) |
15.0 psi |
23.8 psi |
+8.8 psi |
59% more boost |
| Time to achieve 12lb. boost (acceleration run) |
7.75 sec |
2.80 sec |
-4.95 sec |
64% quicker |
| Solo: 0-60 mph acceleration, time |
15.79 sec |
9.96 sec |
-5.83 sec |
37% quicker |
| Solo: 0-60 mph acceleration, distance |
896 ft |
543 ft |
-353 ft |
39% less distance |
| Solo: 40-60 mph acceleration, time |
8.67 sec |
5.38 sec |
-3.29 sec |
38% quicker |
| Solo: 40-60 mph acceleration, distance |
679 ft |
412 ft |
-267 ft |
39% less distance |
| Towing: 0-60 mph acceleration, time |
36.90 sec |
22.74 sec |
-14.16 sec |
38% quicker |
| Towing: 0-60 mph acceleration, distance |
2,322 ft |
1,325 ft |
-997 ft |
43% less distance |
| Towing: 40-60 mph acceleration, time |
22.27 sec |
12.21 sec |
-10.06 sec |
45% quicker |
| Towing: 40-60 mph acceleration, distance |
1,853 ft |
999 ft |
-854 ft |
46% less distance |
| Fuel economy, towing |
10.63 mpg |
11.65 mpg |
+1.02 mpg |
10% better mileage |
| Hill-climb speed, towing (mph) |
43 mph |
69 mph |
+26 mph |
61% faster |
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| Stinger-Plus system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak-to-peak |
179.9 hp (3000 rpm) |
255.8 hp (2800 rpm) |
+75.9 horsepower |
42% more, peak-to-peak |
| Horsepower, best gain |
174.5 hp (2800 rpm) |
255.8 hp (2800 rpm) |
+81.3 horsepower |
47% more (2800 rpm) |
| Horsepower, upshift point* |
149.7 hp (3300 rpm) |
228.0 hp (3300 rpm) |
+78.3 horsepower |
52% more (3300 rpm) |
| Torque, peak-to-peak |
378.1 lb-ft (1900 rpm) |
538.3 lb-ft (2000 rpm) |
+160.2 lb-ft torque |
42% more, peak-to-peak |
| Torque, best gain |
353.6 lb-ft (2400 rpm) |
525.6 lb-ft (2400 rpm) |
+172.0 lb-ft torque |
49% more (2400 rpm) |
| Torque, downshift point* (lb-ft) |
373.4 lb-ft (2000 rpm) |
538.3 lb-ft (2000 rpm) |
+164.9 lb-ft torque |
44% more (2000 rpm) |
| Exhaust backpressure (at equal horsepower) |
2.7 psi |
0.7 psi |
-2.0 psi |
74% less backpressure |
| Air cleaner vacuum (at equal horsepower) |
7.50 in/H2O |
0.25 in/H2O |
-7.25 in/H2O |
97% less restriction |
| Peak boost (at maximum power) |
15.0 psi |
24.8 psi |
+9.8 psi |
65% more boost |
| Time to achieve 12lb. boost (acceleration run) |
7.75 sec |
1.98 sec |
-5.77 sec |
75% quicker |
| Solo: 0-60 mph acceleration, time |
15.79 sec |
10.78 sec |
-5.01 sec |
32% quicker |
| Solo: 0-60 mph acceleration, distance |
896 ft |
592 ft |
-304 ft |
34% less distance |
| Solo: 40-60 mph acceleration, time |
8.67 sec |
5.86 sec |
-2.81 sec |
32% quicker |
| Solo: 40-60 mph acceleration, distance |
679 ft |
447 ft |
-232 ft |
34% less distance |
| Towing: 0-60 mph acceleration, time |
36.90 sec |
24.43 sec |
-12.47 sec |
34% quicker |
| Towing: 0-60 mph acceleration, distance |
2,322 ft |
1,481 ft |
-841 ft |
36% less distance |
| Towing: 40-60 mph acceleration, time |
22.27 sec |
13.79 sec |
-8.48 sec |
38% quicker |
| Towing: 40-60 mph acceleration, distance |
1,853 ft |
1,134 ft |
-719 ft |
39% less distance |
| Fuel economy, towing |
10.63 mpg |
11.38 mpg |
+0.75 mpg |
7% better mileage |
| Hill-climb speed, towing (mph) |
43 mph |
63 mph |
+20 mph |
47% faster |
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| Stinger system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak-to-peak |
179.9 hp (3000 rpm) |
233.5 hp (3000 rpm) |
+53.6 horsepower |
30% more, peak-to-peak |
| Horsepower, best gain |
149.7 hp (3300 rpm) |
210.9 hp (3300 rpm) |
+61.2 horsepower |
41% more (3300 rpm) |
| Horsepower, upshift point* |
149.7 hp (3300 rpm) |
210.9 hp (3300 rpm) |
+61.2 horsepower |
41% more (3300 rpm) |
| Torque, peak-to-peak |
378.1 lb-ft (1900 rpm) |
483.2 lb-ft (2000 rpm) |
+105.1 lb-ft torque |
28% more, peak-to-peak |
| Torque, best gain |
373.4 lb-ft (2000 rpm) |
483.2 lb-ft (2000 rpm) |
+109.8 lb-ft torque |
29% more (2000 rpm) |
| Torque, downshift point* |
373.4 lb-ft (2000 rpm) |
483.2 lb-ft (2000 rpm) |
+109.8 lb-ft torque |
29% more (2000 rpm) |
| Exhaust backpressure (at equal horsepower) |
2.7 psi |
0.5 psi |
-2.2 psi |
82% less backpressure |
| Air cleaner vacuum (at equal horsepower) |
7.50 in/H2O |
0.25 in/H2O |
-7.25 in/H2O |
97% less restriction |
| Peak boost (at maximum power) |
15.0 psi |
22.5 psi |
+7.5 psi |
50% more boost |
| Time to achieve 12lb. boost (acceleration run) |
7.75 sec |
2.95 sec |
-4.80 sec |
62% quicker |
| Solo: 0-60 mph acceleration, time |
15.79 sec |
12.17 sec |
-3.62 sec |
23% quicker |
| Solo: 0-60 mph acceleration, distance |
896 ft |
727 ft |
-169 ft |
19% less distance |
| Solo: 40-60 mph acceleration, time |
8.67 sec |
6.71 sec |
-1.96 sec |
23% quicker |
| Solo: 40-60 mph acceleration, distance |
679 ft |
526 ft |
-153 ft |
23% less distance |
| Towing: 0-60 mph acceleration, time |
36.90 sec |
27.51 sec |
-9.39 sec |
25% quicker |
| Towing: 0-60 mph acceleration, distance |
2,322 ft |
1,712 ft |
-610 ft |
26% less distance |
| Towing: 40-60 mph acceleration, time |
22.27 sec |
16.53 sec |
-5.74 sec |
26% quicker |
| Towing: 40-60 mph acceleration, distance |
1,853 ft |
1,367 ft |
-486 ft |
26% less distance |
| Fuel economy, towing |
10.63 mpg |
11.22 mpg |
+0.59 mpg |
6% better mileage |
| Hill-climb speed, towing (mph) |
43 mph |
58 mph |
+15 mph |
35% faster |
|
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| Git-Kit |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak-to-peak |
179.9 hp (3000 rpm) |
214.7 hp (3000 rpm) |
+34.8 horsepower |
19% more, peak-to-peak |
| Horsepower, best gain |
149.7 hp (3300 rpm) |
189.5 hp (3300 rpm) |
+39.8 horsepower |
27% more (3300 rpm) |
| Horsepower, upshift point* |
149.7 hp (3300 rpm) |
189.5 hp (3300 rpm) |
+39.8 horsepower |
27% more (3300 rpm) |
| Torque, peak-to-peak |
378.1 lb-ft (1900 rpm) |
444.8 lb-ft (2000 rpm) |
+66.7 lb-ft torque |
18% more, peak-to-peak |
| Torque, best gain |
373.4 lb-ft (2000 rpm) |
444.8 lb-ft (2000 rpm) |
+71.4 lb-ft torque |
19% more (2000 rpm) |
| Torque, downshift point* |
373.4 lb-ft (2000 rpm) |
444.8 lb-ft (2000 rpm) |
+71.4 lb-ft torque |
19% more (2000 rpm) |
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*Shift point applies to vehicles equipped with automatic transmission
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