wiring aftermarket tachomete
05-19-2014, 05:43 PM
Post: #1
wiring aftermarket tachomete
Hi all,
I would like to add an aftermarket tachometer to my AE86 but I don't know if it's possible and how to wiring that.
Thanks for your help.
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05-19-2014, 08:18 PM
Post: #2
wiring aftermarket tachomete
It should be perfectly possible as long as you have a tacho that is suitable for a four cylinder car.
You can look up which wire to pick up from the combination meter in the wiring diagram manuals (EU or USDM) or the body repair manual (page BE-22):
http://www.aeu86.org/technical/ae86-manuals/

Or you draw a new line from the coil directly and fuse it properly. I think last month's edition of Practical Classics had a nice how-to on the whole subject. I'll have a look if I can scan that article. Wink

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

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05-19-2014, 10:39 PM
Post: #3
wiring aftermarket tachomete
(05-19-2014 08:18 PM)banpei Wrote:  It should be perfectly possible as long as you have a tacho that is suitable for a four cylinder car.
You can look up which wire to pick up from the combination meter in the wiring diagram manuals (EU or USDM) or the body repair manual (page BE-22):
http://www.aeu86.org/technical/ae86-manuals/

Or you draw a new line from the coil directly and fuse it properly. I think last month's edition of Practical Classics had a nice how-to on the whole subject. I'll have a look if I can scan that article. Wink
Perfect.
Thank you mate.
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05-20-2014, 09:18 AM
Post: #4
wiring aftermarket tachomete
This morning I scanned the article and added it as an attachment.
Hope this helps you out. Wink


Attached File(s)
.pdf  pc-may2014-fit-tacho.pdf (Size: 332.21 KB / Downloads: 426)

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

Support our forum, buy from the AEU86 shop:
[Image: AEU86 AE86 - wiring aftermarket tachomete]
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05-21-2014, 02:38 AM
Post: #5
wiring aftermarket tachomete
Generally speaking, most decent aftermarket tacho's can accept
5V square wave, 12V square wave or voltage spike inputs. If you
take the signal directly from the coil, you need a tacho that can
accept a voltage spike input, so check the tacho data sheet.
Square wave outputs are found on later model cars, and originate
from the ECU or igniter module.

Cheers... jondee86
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05-21-2014, 07:03 AM (This post was last modified: 05-21-2014 07:06 AM by izanagi.)
Post: #6
wiring aftermarket tachomete
Thanks for the help. I will check before buying.

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(05-21-2014 02:38 AM)jondee86 Wrote:  Generally speaking, most decent aftermarket tacho's can accept
5V square wave, 12V square wave or voltage spike inputs. If you
take the signal directly from the coil, you need a tacho that can
accept a voltage spike input, so check the tacho data sheet.
Square wave outputs are found on later model cars, and originate
from the ECU or igniter module.

Cheers... jondee86

Any brand that it's sure it works to advice me ?
Thanks

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05-21-2014, 08:28 AM
Post: #7
wiring aftermarket tachomete
Hard to go wrong with VDO Thumbs up!

Cheers... jondee86
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05-21-2014, 08:15 PM
Post: #8
wiring aftermarket tachomete
(05-21-2014 02:38 AM)jondee86 Wrote:  Generally speaking, most decent aftermarket tacho's can accept
5V square wave, 12V square wave or voltage spike inputs. If you
take the signal directly from the coil, you need a tacho that can
accept a voltage spike input, so check the tacho data sheet.
Square wave outputs are found on later model cars, and originate
from the ECU or igniter module.

Cheers... jondee86
I stand corrected here. Tongue

1982 - TA60 Carina 4dr sedan - fun cruiser
1983 - AE86 Sprinter Trueno - import project
2013 - Honda Civic sport - daily driver
2004 - AEU86 dot ORG - daily domain

Support our forum, buy from the AEU86 shop:
[Image: AEU86 AE86 - wiring aftermarket tachomete]
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