84 diplomat with johnson115 props

[check115]

Anyone ever run a 13 3/4 x 23 chopper on a diplomat, can a 2002 johnson 115 push that prop?

 

[83PREDICTOR]

It might be a dog out of the hole but, if you have a jack plate you can lift it high and maybe get some rpm's out of it.

 

[check115]

I dont have a jack plate. I noticed with my 12 3/4 x 21 I cant trim all the way up, I watch the revs jump from 5800 to 6000 if I over trim and the speed drops 2 MPH, like Im not pushing water. Thats when Im flat out running at 56 MPH speedo. What is making that happen?

 

[83PREDICTOR]

It just sounds like you are trim up to high for that prop.

Also you may not want to buy a chopper if you dont have a j/p. They need to run high.

 

[83PREDICTOR]

Honestly, your 115/Dipper is never going to be very fast. If you are running 56 speedo it is more like 48ish gps. If I were you I would run a 19P and get better holeshot. Or get a v6.

 

[check115]

The cool part is my friends own these props, they keep asking me to try different stuff, just for fun. I originally had a 13 x 19 Michigan wheel, and that was a torque loud ride, not enough lift. Im getting that re-hubbed for pulling. So I borrowed a 12 3/4 x 21 Michigan wheel and its such a smooth ride no cavitation, very nice ride. Also picked up 3 MPH . So after that I ran my buddy with a Baja & a Merc 150 and kept it really close. So now he suggested trying this 13 3/4 x 23 to see if the motor can even push it. I cant help but wonder?

 

[83PREDICTOR]

Thats cool, as long as you are spanking baja's.

 

[check115]

My brother in law said it was awsome to watch my checkmate run a Baja. He said I was up in the air on a 25 degree angle and the Baja was flat, such a huge difference it design, but nose to nose for a 1/2 mile run.