dual speedometers 253 convincer

[georgeglen]

I was thinking of adding a second VDO speedometer on the passinger side, can i run them together off the same line from the SS pick up tube.

[georgeglen]

I was thinking of adding a second VDO speedometer on the passinger side, can i run them together off the same line from the SS pick up tube.

[Dave's ZT260]

Theoretically it should work if you tee the line to both gauges. Practically speaking you could see some speed variations. How about getting a GPS speedo for one side?

[mkhammer]

Stock water pick up speedos are known to be off as much as 5 to 10 mph or more slower. I don't know why you would want two. one gps speedo is accurate to 1 mph give or take for under $500.00 tattle tail feature cost a little more. I wouldn,t hack your boat for something that's not accurate