Prop Help 1991 Mach 1
 

I am looking for prop help on a 1991 Mach 1. Has a 502 mag, and a rough estimate weight is about 6200. I am currently running a Mirage 21, and wanted some others opinions. Thanks in advance for the help.

Re: Prop Help 1991 Mach 1
 

Concider the Revolution 4. They have great all around performance. We have them in our loaner program.

Re: Prop Help 1991 Mach 1
 

hawkfan11,

Do you have any performance data to assist in making a suggestion for you.

What is yoru WOT RPM?
What is your WOT MPH via GPS?
What is your gear ratio?

Julie

Re: Prop Help 1991 Mach 1
 

Gear ration is 1:50
Right now WOT RPM is only 4400-4500
I don't know MPH GPS, but according to my speedo which is not all that accurate abotu 57 or 58.

Again I am currently running a 21 Mirage and it seems to be real sluggish getting on plane. Thanks in advance for your help.

1991 502 Mag

Re: Prop Help 1991 Mach 1
 

Any suggestions Pro-prop or Throttle up

Re: Prop Help 1991 Mach 1
 

Having an accurate speed is critical in determining the efficiency of the boat.

The use of a 4blade will definitely improve the ability to get on plane.

Get some good speed vs. rpm numbers and we can discuss your options from there.