07/20/2026
There she is, the new 400 HP C7 Caterpillar marine engine! A lot of fuel management and electronics upgrades with this engine will have us going faster while using less fuel. And with an additional 50hp over the former Cat 3208 engine.
Transmission (ZF 1.75/1) installed, long story short, to meet warranty specs on the 24 inch prop, we had to go down from a 2/1 rotation down to a 1.75/1 rotation. The engine is rated for a 26 inch prop, but with the way the skeg is designed we have to go with a 24, so the lower gear reduction will allow us to hit top end RPM
A lot of alignment work to be completed as the engine/gear needs a -7 degree angle to meet the shaft, the old engine had a -1 degree angle, so new engine brackets are required ( of course they need to be custom made).
Hoping for a sea trial in a couple weeks!