Operating Costs
The engine operating cost reduction available with the V8 installation is significant. When you couple this with the increased range and multi-fuel capability, you realize substantial gains in operational flexibility. Additional savings are provided by the exceptional reliability of the modern V8 engines. We have not included these maintenance savings in the following operating costs chart:
| OPERATING COST OVERVIEW | LS-3 | IO-540 | GO-480 | GSO-480 |
| Horsepower | 425 | 300 | 270 | 340 |
| Recommended T.B.O. | 2000 | 2000 | 1300 | 1300 |
| Overhaul Cost ($USD) |
$10,000 | $40,000 | $40,000 | $50,000 |
| Power Setting (MP/RPM) |
23/3300 | 24/2400 | 22/2600 | 32/2600 |
| Fuel consumption at Cruise (U.S. Gallons) |
12 | 15 | 14 | 17 |
| Usable Fuel (U.S. Gallons) | 80 | 80 | 80 | 80 |
| Range: Hours Range: Miles @ 130 MPH Range: Miles @ 250 MPH |
8.0 1,040 2,000 |
5.3 694 1,333 |
5.7 743 1,429 |
4.7 612 1,176 |
| Fuel Octane Rating |
91 |
100
|
100 |
100 |
| Fuel Cost per U.S. Gallon | $3.50 | $6.31 | $6.31 | $6.31 |
| Fuel Cost Per Hour | $42.00 | $94.65 | $88.34 | $107.27 |
| Overhaul Cost Per Hour | $6.67 | $20.00 | $30.77 | $38.46 |
| Total Fuel Plus Overhaul per Hour |
$48.67 | $114.65 | $119.11 | $145.73 |
| Savings per 1000 Hours | $65,980 | $70,440 | $97,060 |