DWABoat
Well-Known Member
- Aug 13, 2019
- 1,012
- Boat Info
- 2001 280 Sundancer
1989 220CC Cuddy Cabin
- Engines
- Twin 4.3 w/Alpha Ones
5.7 Mercruiser Alpha One
I have a 2001 280 Sundancer with twin 4.3L EFI (throttle body injection) systems.
All the systems and engines run great.
my question is about the tachometers. I am dealing with the typical Sea Ray OEM tach issue with the flailing tach.
The starboard tach, I believe, is pretty accurate based on engine sound.
The port tach is not even close and will change by a few thousand on its own. I do not rely on it at all.
Now...these are not critical to me. I am a “slow-boater” and only run my baby at just over planing speed. I never WOT or even close. I match throttles based on the analog load balance meter. Not exact, but I get by.
I would like to get some reliable tachometers, but am not ready to make a huge investment in SR tachs. Upgrading to some computerized monitor system is out of the question, at this time.
Can I install some basic analog automotive tachometers that wire to one side of the ignition coil? Would those work? Would they interfere with some other system dependent on the OEM tachs? I realize they would not look like the other gauges, but this would only be for one season. I can install a couple of mid-grade tachometers pretty cheaply while I decide a long-term solution. Anyone have any insight?
All the systems and engines run great.
my question is about the tachometers. I am dealing with the typical Sea Ray OEM tach issue with the flailing tach.
The starboard tach, I believe, is pretty accurate based on engine sound.
The port tach is not even close and will change by a few thousand on its own. I do not rely on it at all.
Now...these are not critical to me. I am a “slow-boater” and only run my baby at just over planing speed. I never WOT or even close. I match throttles based on the analog load balance meter. Not exact, but I get by.
I would like to get some reliable tachometers, but am not ready to make a huge investment in SR tachs. Upgrading to some computerized monitor system is out of the question, at this time.
Can I install some basic analog automotive tachometers that wire to one side of the ignition coil? Would those work? Would they interfere with some other system dependent on the OEM tachs? I realize they would not look like the other gauges, but this would only be for one season. I can install a couple of mid-grade tachometers pretty cheaply while I decide a long-term solution. Anyone have any insight?