86 Silverado K20 12V CUMMINS Build - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Dieselwrencher** · 01-27-2014, 03:44 PM

Nice emblems and nice gauge. I like that it has a 4k tach instead of the typical 6 or 8k unit.

arrover · 01-28-2014, 01:37 PM

Thanks for posting the Speedhut gauges. I had never heard of them but they make some really cool stuff. Appreciate the info.

brimc · 01-28-2014, 02:47 PM

Quote:

Originally Posted by arrover

Thanks for posting the Speedhut gauges. I had never heard of them but they make some really cool stuff. Appreciate the info.

Ya I really like them. You can customize them almost anyway you want.
Not sure about cost. I am still shopping. I worked out a complete set just over $900. I would still have to ship them to Canada too.

brimc · 01-29-2014, 12:37 PM

So let me say first off, it is fricken COLD. I have a small project going on inside with the engine wiring harness. I decided to try and add a "W" terminal hookup for a tach. I started with taking the back cover off.

Then I picked a terminal that looked to have the most room for clearance etc.

I drilled two access holes. One for a screwdriver, and one for the wire.

Made a new wire. Double heat sink cover.

This is what it looks like all back together. I am going to use the original alternator wires, which I cut out of the dodge, and run them to the battery, ground and voltage regulator.
Has anyone used this method for the tach signal? I have only read about it and have not tried it. Any and all feedback is greatly appreciated.

01-27-2014, 03:44 PM	#1
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,140	Re: 86 Silverado K20 12V CUMMINS Build Nice emblems and nice gauge. I like that it has a 4k tach instead of the typical 6 or 8k unit. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

01-28-2014, 01:37 PM	#2
arrover Registered User Join Date: Sep 2011 Location: NW Arkansas Posts: 291	Re: 86 Silverado K20 12V CUMMINS Build Thanks for posting the Speedhut gauges. I had never heard of them but they make some really cool stuff. Appreciate the info. __________________ 1982 GMC Crew Cab 4x4 - "River Truck" build thread 1973-1987(91) Chevy/GMC How-To Videos

01-29-2014, 12:37 PM	#4
brimc Registered User Join Date: Jun 2013 Location: New Lowell, Ontario, Canada Posts: 248	Re: 86 Silverado K20 12V CUMMINS Build So let me say first off, it is fricken COLD. I have a small project going on inside with the engine wiring harness. I decided to try and add a "W" terminal hookup for a tach. I started with taking the back cover off. Then I picked a terminal that looked to have the most room for clearance etc. I drilled two access holes. One for a screwdriver, and one for the wire. Made a new wire. Double heat sink cover. This is what it looks like all back together. I am going to use the original alternator wires, which I cut out of the dodge, and run them to the battery, ground and voltage regulator. Has anyone used this method for the tach signal? I have only read about it and have not tried it. Any and all feedback is greatly appreciated. __________________ BRIAN 1986 Chevrolet K20 Silverado 12 Valve CUMMINS P Pumped Intercooled/Getrag360/Divorced NP205/10B/14BFF Detroit Locker - DD Canadian Winter Beater. My Chevrolet CUMMINS Build http://67-72chevytrucks.com/vboard/s...d.php?t=585509



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