New Fuel injected 550HP WaterThunder motors!

[Waterthunder]

I have been testing one for a while now and also just sent one to American Airboats in Texas and one to Alaska! I do have one locally these motors are showing awesome performance potential and ton's of torque with exceptional throttle response! Even though they produce a little over 550HP they seam to be out performing my 600HP L92 based motors everywhere accept wide open throttle! Throttle response with this combination is crazy instantaneous! I will be offering these fuel injected motors with two different manifold and throttle body options depending on budgets and performance needs! I will be adding a fuel injected section to my web site shortly!

 

[jpatter123]

waterthunder do you do engine stands and install motors in boats or just sell the engines? Also do you think that 450 hp model you got would be too much for my 12 x 7.5 diamondback ultralight?
My 4 cyl A/C does the job but I am getting jealous at what those gear reduction SB's are doing. I might actually finally have some new work coming in and being able to drive my boat around my yard sounds like fun!

 

[Waterthunder]

A 450HP is as high as I would go! The boat will handle it however it will have a problem when you run in the water wide open the motor will shove the nose down and it will ride on the bow. This will only be a problem when your wide open. Because of two reasons one the added thrust and two car motors use larger diameter props and this raises the motor. The higher the motor is the more a boat will ride on the nose. I would run a 76'' prop and mount your motor as low as possible!