83-84TC tach modification - input needed

Topic: 83-84TC tach modification - input needed (Read 6090 times) previous topic - next topic

83-84TC tach modification - input needed

Reply #15 – June 12, 2007, 08:09:16 PM

Quote from: cougarcragar;153891

Chuck, what will you do with the "Turbo" and "Overboost" LEDs in the cluster?

It looks like a kitchen table and spray-painted particle board to me. :D

I'll make the "Overboost" light up whenever an annoying question is asked :D Not sure yet as they just get an input to say "light"..so I dunno yet.

You are part right...the bench in the garage is painted particle board (there when I moved in), and the wood is a bookshelf top. I do have some hardwood floors though....just most under carpet :hick:

83-84TC tach modification - input needed

Reply #16 – June 12, 2007, 08:09:51 PM

Quote from: 84 Fila;153893

IMO I can live with the turbo and overboost lights in the cluster if I have a factory looking Tach. It's alot better then having an aftermarket one that doesn't match the rest of my int. Who ever figures this out, I wana know how to do it

OK we know....stop post whoring.....:flame:

83-84TC tach modification - input needed

Reply #17 – June 12, 2007, 08:13:37 PM

Doing more comparisons to the 79 tach I have. The "+" and "-" should be the leads to the tach itself. You can see them on the PCB on the back.

83-84TC tach modification - input needed

Reply #18 – June 12, 2007, 09:44:05 PM

Chuck taking out the Boost over boost lights should be eazy. Then you can just use those White ones I sent you a while back. You can just take it to photo shop or somthing and take those uneeded labels off.

83-84TC tach modification - input needed

Reply #19 – June 12, 2007, 10:41:39 PM

You know what? I have this really old little column mount tach from my first Nissan truck from ages ago. It's a V8 tach and if you take it apart, on the inside it has this little box on the input wire with a switch that says 4-6-8. I wonder if I could snip that little guy out of there and solder it into the 83/84 TC tach?

83-84TC tach modification - input needed

Reply #20 – June 12, 2007, 11:34:59 PM

Quote from: Aerobird Motorsports;153935

You know what? I have this really old little column mount tach from my first Nissan truck from ages ago. It's a V8 tach and if you take it apart, on the inside it has this little box on the input wire with a switch that says 4-6-8. I wonder if I could snip that little guy out of there and solder it into the 83/84 TC tach?

Well, you'd probably have to defeat what's there to have it work correctly. Dunno

83-84TC tach modification - input needed

Reply #21 – June 13, 2007, 10:23:54 AM

Hrmm... Guess I'll take both apart and post up some pics.

83-84TC tach modification - input needed

Reply #22 – June 13, 2007, 11:51:06 AM

Circuit manufacturing has come a long way in 25 years. :eek:

83-84TC tach modification - input needed

Reply #23 – December 29, 2012, 06:34:46 PM

what happened in this situation? I've been wondering about this mod here recently, has anyone figured out how to do this?

83-84TC tach modification - input needed

Reply #24 – December 30, 2012, 12:01:18 AM

Quote from: 88turbo;405713

what happened in this situation? I've been wondering about this mod here recently, has anyone figured out how to do this?

No idea.

I sent a tach off to someone, oh...4 years ago or so, for them to look at it (someone with more electrical circuitry knowledge than I had) and the project just died. I don't remember who I sent it to. :hick:

83-84TC tach modification - input needed

Reply #25 – December 30, 2012, 12:30:44 AM

well ! lol wonder if Scott would know what to do with this.

83-84TC tach modification - input needed

Reply #26 – December 30, 2012, 09:39:36 AM

http://www.coolcats.net/modifying/4to8tach.html

83-84TC tach modification - input needed

Reply #27 – December 30, 2012, 09:57:17 AM

Tom that states that it specifically for 87-88. The one I have is 83-84.

83-84TC tach modification - input needed

Reply #28 – December 30, 2012, 09:57:21 AM

Look a little closer, Tom. We're talking about 83-84...not the 87-88. Not the same thing.

83-84TC tach modification - input needed

Reply #29 – December 30, 2012, 02:04:16 PM

Well thought i would post that SORRY. But from memory a resistor change is what is needed as i remember. Years back a tach had a couple of different resistors for calibration. Honestly i cant think the electronics would be different. pulses are Pulses. Sorry for trying to help!