Comp. Ratio: 8 to 1- Max
Flywheel:
10-14 lbs.-Best 5 lbs.- Minimum Note: Most of weight should be in
the outer rim area. Heavier flywheel gives smoother operation.
Crankshaft Bolt:
Deep drilled-Best 5\8" x 3-1\2" long Stock
VW-Satisfactory-20mm x 50mm
Engine Speed:
3600 to 4000 RPM @ Take off
3000 to 3400 RPM @ Cruise
Prop Recommendations:
1.3 Ratio - approximately 5 1\2 ft. diameter.
1.6 Ratio - approximately 6 ft. diameter.
2.0 Ratio - approximately 6 1\2 to 7 ft diameter.
2.47 Ratio - approximately 7 1/2 to 8 1/2 ft diameter.
Bearing Recommendations:
Oil hole in small main bearing should be elongated, (approx
.060" toward cam gears) and lightly chamfered on the inside. This is to prevent the
very small oil hole from plugging (Some new bearings already have this larger hole).
VW Engines