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Magnum Ralph
03-12-2016, 04:14 PM
Want to put a gps speedo in my 18. I'm confused find em from $150 to $400 and looks like $400 you need to buy an antennae. Makes no sense. Please comment .

gcarter
03-12-2016, 04:41 PM
There are displays, also antennas. Combined, they're pretty expensive.
There are free GPS apps for your phone.
A good quality liquid filled Bourdon Tube type speedo will be w/in 1-2 MPH of
the GPS speed at a significant savings.
The choice is yours.

Magnum Ralph
03-12-2016, 05:20 PM
Thanks where do I get the bourbon tube

Magnum Ralph
03-12-2016, 05:28 PM
Friend just bought a gps speedo $200 supposed to be all inclusive but not yet installedu

Magnum Ralph
03-12-2016, 05:28 PM
Brand is sunset

gcarter
03-12-2016, 06:48 PM
Gaffrig Performance still manufactures their own liquid filled speedometers.
http://gaffrigperformance.com/137-liquid-filled-speedos . Gaffrig supplies these
gauges in various diameters, maximum speeds, and finishes.
I guess more and more of the low cost gauge builders are supplying lower cost
GPS speedos. After searching a few, I noticed many are less than 60 MPH.
Don't forget about the free phone app!

Greg Guimond
03-12-2016, 09:26 PM
I would just install an app on your iphone. They are as accurate as my dashmount Livorsi and very inexpensive these days.

Magnum Ralph
03-12-2016, 09:32 PM
I have the app guess I don't care about speed unless testing. Thanks guys.

DONZI-DON
03-13-2016, 02:42 PM
Want to put a gps speedo in my 18. I'm confused find em from $150 to $400 and looks like $400 you need to buy an antennae. Makes no sense. Please comment .

Two speeds on water 1) Canal speed 2) WOT

Cheap out like me and use your cell phone and download a FREE app. You might find your SPEEDO is with in a 1mph or 2mph of GPS. Not worth spending the money for me. JMO

Pat McPherson
03-14-2016, 12:53 PM
Two speeds on water 1) Canal speed 2) WOT

Cheap out like me and use your cell phone and download a FREE app. You might find your SPEEDO is with in a 1mph or 2mph of GPS. Not worth spending the money for me. JMO

I agree that a GPS Speedo is a waist of money these days. A GPS app on a cell is wait I've used. My stock VDO speedo reads 2-3mph fast at WOT but is only about 1mph fast at cruise speed (3200rpm).