RE: what upgrades proboat Formula Hydro
Hi Dave,
Tunning the motor is one way to get more speed and a three blade prop is another, after you have tuned her.
I bought a thinner head shim to increase the power by compression and a three blade prop.
Had to add weights on the front to keep her down because she started to come off the water after I moded her.
GPS'ed her at 45mph and that is scary fast for me.