I am planning to replace the tach gauge on my boat. I know that I need a gauge with a 12 pole setting with connections for 12v, send, and ground. However, I see that there are gauges that read up to 6K rpm and other gauges that go up to 7K rpm.
Is one gauge intended for outboards while the other one is intended for inboards? Is there any reason to choose a 7K gauge vs. a 6K gauge? The WOT range for my motor is 5,000 to 5,600 rpm, so I intuitively guess that either one would work OK.
Thanks for any advice.
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1996 Mercury 150HP V6 carbed outboard motor and Maxum 1900XR bowrider boat
Regardless of which you choose just make sure it a a good tach and accurate or it is not worth spending money on.
__________________ "When you see yourself doing something badly and nobody’s bothering to tell you anymore, that’s a very bad place to be. Your critics are your ones telling you they still love you and care." Randy Pausch 1960-2008 The Last Lecture
8k. $88 at your Merc dealer. You don't want your needle pegged every time you go to WOT.
Mark
Taxasmark,
What do you mean when you say "pegged every time you go to WOT" ? I was planning on getting a Faria tach, as that was the brand of tach already on my boat. However, I would not want to get a tach that was not a good one. How does one tell if a tach would get "pegged" or not before buying it?
Thanks for the education on tachs
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1996 Mercury 150HP V6 carbed outboard motor and Maxum 1900XR bowrider boat
What Mark is saying is that a 6K tach would be almost maxxed out if you were to go to WOT, with an 8K tach, you would still have 2200 RPMs to go to max or "pegged out".
Besides that instruments are calibrated at different places and usually Full Scale Deflection is not their most accurate positions, nor is the low end.
Choose 6K or 7K tach gauge for Mercury OB?
6K is all you need...
Linear Mode
