Mechanical Speedometers

Mega & Race Series Mechanical Speedometers
  • 3 3/8" cut out, 3 3/4" overall
  • Your choice of Mega or Race rim in powder coat color or in stainless steel
  • Kit includes
  • speedometer
  • pitot tube and mounts
  • 25 feet of hose

60 MPH

3 3/8" cut out DCMS60
4 5/8" cut out not available

80 MPH

3 3/8" cut out DCMS80
4 5/8" cut out DCML80

100 MPH

3 3/8" cut out DCMS100
4 5/8" cut out DCML100

Industrial Series Mechanical Speedometers

Purchase a complete kit or the gauge alone.

  • Only available in the 3 3/8" cutout, 3 3/4" overall
  • Available with SAE rim only
  • Kit includes:
  • speedometer
  • pitot tube
  • hose
  • mounts
Industrial Series speedometer

DCMS80BKBK

top

 Industrial Series Color Options
Description 3 3/8"
60 MPH DCMS60 For a kit,
Add "K1"
after the MPH
80 MPH DCMS80
100 MPH DCMS100

Speedometer Terms

PITOT (pee-toe) MOUNT - A part attached to the transom to pickup water (psi) as the boat travels through the water. This water runs through a hose to the mechanical speedo in the dash to register your speed.

AERATION - The mixing of air (bubbles) with the water under the boat. This helps to lift the boat from the water to increase your speed. You do not want aerated water in the pitot tube as it will cause the speedo to read low. There should be solid (non-aerated) water running through the pitot tube.

In order to produce accurate speedo readings, the pitot tube must be placed in un-aerated water. New stepped bottom technology can make it tricky to get the pitot tube mounted correctly. A thru-hull fitting allows the tube to be mounted on the step bottoms and the hose routed directly through the hull to the speedo, leaving no hose exposed.

CALIBRATION - The process of matching an instrument’s reading to a piece of test equipment with accurate data to ensure the gauge is reading properly. Speedometers cannot be calibrated in the field.

KICK-UP - A type of pitot tube that will swing out of the way if it hits debris in the water. Also good to clear a trailer bunk or when beaching a boat.

PITOT (pee-toe) MOUNT - A part attached to the transom to pickup water (psi) as the boat travels through the water. This water runs through a hose to the mechanical speedo in the dash to register your speed.

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