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About OffshoreRoar

Calculators, wiring diagrams and maintenance guides for outboard boats and their trailers, published at offshoreroar.com.

Last updated 2026-10-04

OffshoreRoar helps you work out the numbers behind your boat, wire it, maintain it and tow it: prop and speed calculators, wiring diagrams, trailer and outboard how-tos, and a few short games.

© 2026 offshoreroar.com

Questions? info@offshoreroar.com

Specifications come from manufacturers' published documents and can change. Check your engine or boat maker's current manual before you change a setting or fit a part.