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|7th May 2007, 15:44||#1|
Join Date: Mar 2006
Thanked: 54 Times
Building a Tachometer for Swift LDi
I long to have a tachometer on my Swift LDi.
I have decent experience in building the electronics to get the numbers on LCD, but is there any point which will give the pulses ?
|7th May 2007, 16:33||#2|
Join Date: Mar 2007
Thanked: 2 Times
If yes try somekind of motion sensor, on timing pully of crankshaft(i dont know if swift uses timing chain or belt), whatever may be the case belt or chain, the main crakshaft pully/sporket is the ideal location to indtall sensor.
What kind of sensor?...that you have to find out & tell me what you have used, may be some kind of magnetic counter may serve your purpose for transducer, but i dont have details for commercially available one.
Please do ltell me how you did it?
|7th May 2007, 16:48||#3|
Join Date: Sep 2006
Thanked: 109 Times
Rather than using a motion sensor, it would be better to measure the spark rate using something like an inductive tap on one of the spark plug cables. This is how most commercial tachometers work AFAIK.
|7th May 2007, 17:23||#6|
Join Date: Apr 2004
Thanked: 221 Times
Buy the Instrument cluster from the VDi. Take yours out. Fit that in. There should already be the necessary hook up for the tacho signal somewhere back there. There ya go. A stock looking instrument cluster.
Technically though I don't think this could be legal as you are essentially "clocking" you car, because your ODO will start from 0km again.
That's the basic. Maybe someone else with a better knowledge of the Swift electrics can assist you further.
Ofcourse, if you want to go the RICE way with a huge tacho that blocks 1/4 of the windscreen, thats possible too.
|7th May 2007, 17:58||#7|
Join Date: Mar 2007
Thanked: 20 Times
Tampering with the vehile in this fashion may invite a termination of warranty. So ask your dealer to do this work for you. That will save you from loosing warranty.
|7th May 2007, 19:26||#9|
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