RPM Gauge MCI 8

[cross express]

      Looking to get a rpm gauge for a 78 mc 8 4 manual. Tried Luke at US Coach no luck, what, where are my options.

[luvrbus]

After market from www.precisionspeed.com in Phoenix does it have a tach now ?

[cross express]

  No tach now.  Thanks, I will check this site out.

[Bill Gerrie]

Summit Racing has a programmable 3000 rpm tach for $78 that reads from the "R" terminal on the alternator. If you have a DDEC engine it reads from the 505 wire as well. It is VDO #333199

[luvrbus]

He probably has a belt driven alternator the tachs seem kinda of worthless driven from the R terminal on those for some reason

[chessie4905]

   On our 4104, we used a sender that looked at the flywheel teeth. Other than a loose wiring connection, never had any problems with it.

http://www.speedhut.com/gauge/GR4-TACH-06-HTZ/1/Diesel-Tachometer-Gauge-4K-RPM-Shift-light


The tach can work with various senders and the progressive shift light option looks interesting.....

[TomC]

I use an Isspro 3,000rpm with hour meter. I have a synchronous generator off the back of the blower drive (same drive that can drive a mechanical tachometer). It's been the best gauge yet. Good Luck, TomC