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Test Results
Turbo-diesel: 7.3L Power Stroke, '99-03
Test vehicle: 1999 F-350 crew-cab dually • 2-wheel drive • 4R100 4-speed automatic trans • Towing combined vehicle weight: 20,000 lbs.
Horsepower and torque measured at rear wheels.
Power Pack system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak-to-peak |
212.2 hp (2600 rpm) |
305.1 hp (2700 rpm) |
+92.9 horsepower |
44% more, peak-to-peak |
| Horsepower, best gain |
180.3 hp (3200 rpm) |
284.0 hp (3200 rpm) |
+103.7 horsepower |
58% more (3200 rpm) |
| Horsepower, upshift point (automatics) |
180.3 hp (3200 rpm) |
284.0 hp (3200 rpm) |
+103.7 horsepower |
58% more (3200 rpm) |
| Torque, peak to peak |
463.1 lb-ft (1800 rpm) |
683.3 lb-ft (1800 rpm) |
+220.2 lb-ft torque |
48% more, peak-to-peak |
| Torque, best gain |
452.2 lb-ft (2000 rpm) |
676.2 lb-ft (2000 rpm) |
+224.0 lb-ft torque |
50% more (2000 rpm) |
Torque, downshift point (automatics)
|
461.1 lb-ft (1900 rpm) |
682.8 lb-ft (1900 rpm) |
+221.7 lb-ft torque |
48% more (1900 rpm) |
| Exhaust backpressure (at equal airflow) |
2.1 psi |
0.3 psi |
-1.8 psi |
86% less backpressure |
| Air cleaner vacuum (at equal airflow) |
15.2 in/H2O |
6.9 in/H2O |
-8.3 in/H2O |
55% less restriction |
| Peak boost |
17.5 psi |
25.0 psi |
+7.5 psi |
43% more boost |
| Time to achieve 12 lb. boost |
6.80 sec |
4.45 sec |
-2.35 sec |
35% quicker |
| Solo: 0-60 mph acceleration, time |
12.21 sec |
8.88 sec |
-3.33 sec |
27% quicker |
| Solo: 0-60 mph acceleration, distance |
693 ft |
491 ft |
-202 ft |
29% less distance |
| Solo: 40-60 mph acceleration, time |
6.36 sec |
4.81 sec |
-1.55 sec |
24% quicker |
| Solo: 40-60 mph acceleration, distance |
498 ft |
372 ft |
-126 ft |
25% less distance |
| Towing: 0-60 mph acceleration, time |
30.86 sec |
21.68 sec |
-9.18 sec |
30% quicker |
| Towing: 0-60 mph acceleration, distance |
1,942 ft |
1,297 ft |
-645 ft |
33% less distance |
| Towing: 40-60 mph acceleration, time |
16.90 sec |
11.56 sec |
-5.34 sec |
32% quicker |
| Towing: 40-60 mph acceleration, distance |
1,406 ft |
952 ft |
-454 ft |
32% less distance |
| Hill-climb speed, towing (maximum speed achieved on 7% grade) |
52 mph |
71 mph |
+19 mph |
37% faster |
| Fuel economy, towing (maintaining 60 mph on 106-mile loop rising to 7% grade) |
9.17 mpg |
10.47 mpg |
+1.30 mpg |
14% better mileage |
|
|
| Stinger-Plus system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak to peak |
212.2 hp (2600 rpm) |
284.7 hp (2900 rpm) |
+72.5 horsepower |
34% more, peak-to-peak |
| Horsepower, best gain |
180.3 hp (3200 rpm) |
271.1 hp (3200 rpm) |
+90.8 horsepower |
50% more (3200 rpm) |
| Horsepower, upshift point (automatic) |
180.3 hp (3200 rpm) |
271.1 hp (3200 rpm) |
+90.8 horsepower |
50% more (3200 rpm) |
| Torque, peak to peak |
463.1 lb-ft (1800 rpm) |
616.0 lb-ft (1800 rpm) |
+152.9 lb-ft torque |
33% more, peak-to-peak |
| Torque, best gain |
453.5 lb-ft (1700 rpm) |
615.6 lb-ft (1700 rpm) |
+162.1 lb-ft torque |
36% more (1700 rpm) |
| Torque, downshift point (automatic) |
461.1 lb-ft (1900 rpm) |
611.8 lb-ft (1900 rpm) |
+150.7 lb-ft torque |
33% more (1900 rpm) |
| Exhaust backpressure (at equal airflow) |
2.1 psi |
0.3 psi |
-1.8 psi |
86% less backpressure |
| Air cleaner vacuum (at equal airflow) |
15.2 in/H2O |
6.9 in/H2O |
-8.3 in/H2O |
55% less restriction |
| Peak boost |
17.5 psi |
24.0 psi |
+6.5 psi |
37% more boost |
| Time to achieve 12 lb. boost |
6.80 sec |
4.57 sec |
-2.23 sec |
33% quicker |
| Solo: 0-60 mph acceleration, time |
12.21 sec |
9.35 sec |
-2.86 sec |
23% quicker |
| Solo: 0-60 mph acceleration, distance |
693 ft |
520 ft |
-173 ft |
25% less distance |
| Solo: 40-60 mph acceleration, time |
6.36 sec |
5.04 sec |
-1.32 sec |
21% quicker |
| Solo: 40-60 mph acceleration, distance |
498 ft |
388 ft |
-110 ft |
22% less distance |
| Towing: 0-60 mph acceleration, time |
30.86 sec |
22.98 sec |
-7.88 sec |
26% quicker |
| Towing: 0-60 mph acceleration, distance |
1,942 ft |
1,411 ft |
-531 ft |
27% less distance |
| Towing: 40-60 mph acceleration, time |
16.90 sec |
12.34 sec |
-4.56 sec |
27% quicker |
| Towing: 40-60 mph acceleration, distance |
1,406 ft |
1,021 ft |
-385 ft |
27% less distance |
| Hill-climb speed, towing (maximum speed achieved on 7% grade) |
52 mph |
67 mph |
+15 mph |
29% faster |
| Fuel economy, towing (maintaining 60 mph on 106-mile loop rising to 7% grade) |
9.17 mpg |
10.20 mpg |
+1.03 mpg |
11% better mileage |
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| Stinger system |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak to peak |
212.2 hp (2600 rpm) |
261.3 hp (2900 rpm) |
+49.1 horsepower |
23% more,
peak-to-peak |
| Horsepower, best gain |
180.3 hp (3200 rpm) |
247.8 hp (3200 rpm) |
+67.5 horsepower |
37% more
(3200 rpm) |
| Horsepower, upshift point (automatics) |
180.3 hp (3200 rpm) |
247.8 hp (3200 rpm) |
+67.5 horsepower |
37% more
(3200 rpm) |
| Torque, peak to peak |
463.1 lb-ft (1800 rpm) |
567.7 lb-ft (1800 rpm) |
+104.6 lb-ft torque |
23% more,
peak-to-peak |
| Torque, best gain |
439.8 lb-ft (1500 rpm) |
567.3 lb-ft (1500 rpm) |
+127.5 lb-ft torque |
29% more
(1500 rpm) |
| Torque, downshift point (automatics) |
461.1 lb-ft (1900 rpm) |
561.8 lb-ft (1900 rpm) |
+100.7 lb-ft torque |
22% more
(1900 rpm) |
| Exhaust backpressure (at equal airflow) |
2.1 psi |
0.3 psi |
-1.8 psi |
86% less backpressure |
| Air cleaner vacuum (at equal airflow) |
15.2 in/H2O |
7.2 psi |
-8.0 in/H2O |
53% less restriction |
| Peak boost |
17.5 psi |
24.0 psi |
+6.5 psi |
37% more boost |
| Time to achieve 12 lb. boost |
6.80 sec |
4.74 sec |
-2.06 sec |
30% quicker |
| Solo: 0-60 mph acceleration, time |
12.21 sec |
9.74 sec |
-2.47 sec |
20% quicker |
| Solo: 0-60 mph acceleration, distance |
693 ft |
577 ft |
-116 ft |
17% less distance |
| Solo: 40-60 mph acceleration, time |
6.36 sec |
5.40 sec |
-0.96 sec |
15% quicker |
| Solo: 40-60 mph acceleration, distance |
498 ft |
421 ft |
-77 ft |
16% less distance |
| Towing: 0-60 mph acceleration, time |
30.86 sec |
25.23 sec |
-5.63 sec |
18% quicker |
| Towing: 0-60 mph acceleration, distance |
1,942 ft |
1,576 ft |
-366 ft |
19% less distance |
| Towing: 40-60 mph acceleration, time |
16.90 sec |
14.23 sec |
-2.67 sec |
16% quicker |
| Towing: 40-60 mph acceleration, distance |
1,406 ft |
1,178 ft |
-228 ft |
16% less distance |
| Hill-climb speed, towing (maximum speed achieved on 7% grade) |
52 mph |
65 mph |
+13 mph |
25% faster |
| Fuel economy, towing (maintaining 60 mph on 106-mile loop rising to 7% grade) |
9.17 mpg |
10.11 mpg |
+0.94 mpg |
10% better mileage |
|
|
| Git-Kit |
Stock |
Banks |
Improvement |
Results |
| Horsepower, peak to peak |
212.2 hp (2600 rpm) |
241.4 hp (2900 rpm) |
+29.2 horsepower |
14% more, peak-to-peak |
| Horsepower, best gain |
180.3 hp (3200 rpm) |
230.0 hp (3200 rpm) |
+49.7 horsepower |
28% more (3200 rpm) |
| Horsepower, upshift point (automatics) |
180.3 hp (3200 rpm) |
230.0 hp (3200 rpm) |
+49.7 horsepower |
28% more (3200 rpm) |
| Torque, peak to peak |
463.1 lb-ft (1800 rpm) |
537.6 lb-ft (1600 rpm) |
+74.5 lb-ft torque |
16% more, peak-to-peak |
| Torque, best gain |
439.8 lb-ft (1500 rpm) |
527.5 lb-ft (1500 rpm) |
+87.7 lb-ft torque |
20% more (1500 rpm) |
| Torque, downshift point (automatics) |
461.1 lb-ft (1900 rpm) |
523.3 lb-ft (1900 rpm) |
+62.2 lb-ft torque |
14% more (1900 rpm) |
| Exhaust backpressure (at equal airflow) |
2.1 psi |
0.3 psi |
-1.8 psi |
86% less backpressure |
| Peak boost |
17.5 psi |
22.5 psi |
+5.0 psi |
29% more boost |
| Time to achieve 12 lb. boost |
6.80 sec |
4.99 sec |
-1.81 sec |
27% quicker |
| Solo: 0-60 mph acceleration, time |
12.21 sec |
10.63 sec |
-1.58 sec |
13% quicker |
| Solo: 0-60 mph acceleration, distance |
693 ft |
619 ft |
-74 ft |
11% less distance |
| Solo: 40-60 mph acceleration, time |
6.36 sec |
5.92 sec |
-0.44 sec |
7% quicker |
| Solo: 40-60 mph acceleration, distance |
498 ft |
459 ft |
-39 ft |
8% less distance |
| Towing: 0-60 mph acceleration, time |
30.86 sec |
26.94 sec |
-3.92 sec |
13% quicker |
| Towing: 0-60 mph acceleration, distance |
1,942 ft |
1,687 ft |
-255 ft |
13% less distance |
| Towing: 40-60 mph acceleration, time |
16.90 sec |
15.54 sec |
-1.36 sec |
8% quicker |
| Towing: 40-60 mph acceleration, distance |
1,406 ft |
1,291 ft |
-115 ft |
8% less distance |
| Hill-climb speed, towing (maximum speed achieved on 7% grade) |
52 mph |
62 mph |
+10 mph |
19% faster |
| Fuel economy, towing (maintaining 60 mph on 106-mile loop rising to 7% grade) |
9.17 mpg |
9.93 mpg |
+0.76 mpg |
8% better mileage |
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