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.

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

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

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

Any suggestions Pro-prop or Throttle up

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.