View Full Version : Dereck, how did you do this?!?
Night Wolf
August 11th, 2007, 03:02 AM
and can it be done with the '95-'97 generation? I think its pretty cool :)
http://www.youtube.com/watch?v=hNLndxup8UA&mode=related&search=
Dereck
August 11th, 2007, 07:30 AM
Hi Nightwolf
All the details are posted somewhere on this site but just for you here they are again :)
First you need to map the temperature sender voltages/resistance to the bars displayed on the gauge, See here for the graphs (http://lincoln.superstitiongold.com/video/Temp_Rev.xls) (Excel file.).
Next design yourself a circuit and program it with the appropriate bespoke software See here (http://lincoln.superstitiongold.com/video/temp_rev_new_1.pdf) (pdf)
Then build and test your circuit
http://lincoln.superstitiongold.com/pictures2/TempTacho%20002.jpg
Now house your circuit in a nice little box, mount in a suitable place under the hood, splice into the temperature sensor wires and fit yourself an aesthetically pleasing switch.
http://lincoln.superstitiongold.com/pictures2/TC%20Temperature%20Tacho%20001.jpg
http://lincoln.superstitiongold.com/pictures2/TC%20Temperature%20Tacho%20002.jpg
http://lincoln.superstitiongold.com/pictures2/TC%20Temperature%20Tacho%20003.jpg
When in tacho mode and the engine revs reach approximately 4300 (this is maximum power on the TC equal to the “red line”) the instrument cluster pings a warning at you and the gauge flashes :)
As a side note it is also programmed to switch back to a temperature gauge if your engine starts to overheat.
I can't see any reason it wouldn't work on a 95 - 97 TC it's just I haven't ever tested the sensor outputs on a later model
Just incase you are wondering - no you couldn't afford one. For me to build and send you one to fit on your car woud most likely cost 350 - 400 dollars (U.K prices dude :rolleyes:), the switch alone costs $40 and the module is designed only to work with that switch, which by the way looks a lot better in the flesh, it lights up a sort of orangey yellow colour dimly with the parking lights on and bright when you switch to tacho.
Regards
Dereck
MichiganTeddyBear
August 11th, 2007, 10:51 AM
Derek, first time I have actually looked at your schematic. nice. Definately tell it was drawn in the international standard, as you dont often see resistors less than 1k ohm listed as xxxR on many american drawn prints, also the cap values give it away also.
very clean, I will admit. I have seen and used many schematics from very simple circuits to very complex, and many are very difficult to follow. yours is well done. I have used PIC's chips in various projects in the past, and do like the products.
if you were inclined to make these avail in the US, I may be available to build them for ya. Yea, I know, you made the electronics pretty much public, but its the software for the PIC thats worth the $$$, which you have kept pretty close to the chest as far as I can tell (and I dont blame ya either).
as a side note, I could probably also make it avail for the 88-94 conti's as well, as they are tach-less, and use a bar graph digital gauge similar to the TC's
JeepOwner
August 11th, 2007, 12:11 PM
I would want one given they can work for the 95-97 town cars!
Night Wolf
August 11th, 2007, 02:50 PM
So the redline in the Town Car is 4,300RPM?
That is very cool though... I agree, if evey made for sale, I'd be interested :)
Dereck
August 11th, 2007, 03:02 PM
Hi MichiganTeddyBear
.....I know, you made the electronics pretty much public, but its the software for the PIC thats worth the $$$, which you have kept pretty close to the chest as far as I can tell (and I dont blame ya either).
;)
Hi Night Wolf
So the redline in the Town Car is 4,300RPM?
That is very cool though... I agree, if evey made for sale, I'd be interested :)
Maximum power (all 220 horses with dual exhaust) on a Town Car is produced at 4250rpm it is pointless revving any higher than this.
6.6 billion people wordwide have nearly all the information they need to build one :D
Regards
Dereck
MichiganTeddyBear
August 11th, 2007, 03:34 PM
Yup.. and all they need now is to know how to program the PIC and they are all set! Oh, I forgot, they also need to know how to actually write software too, although that would be a given to be part of programming the PIC.
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