Silvia Club of NSW

I know most cars have a distrib to distrib the spark and i know our beautiful s13's have the spark on each spark plug, but i was wondering where do i connect a tacho too?? Which wire is the one to say time to spark etc??
Pete

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To be old and wise you must first be young and stupid.
If we aren't supposed to eat animals why are they made of meat?

that will depend on the tacho.
if it has an inductive pickup (ie, clips over a plug lead) then there's a loop fo wire on the back of the head (comes out of the coil pack wiring loom) which is an inductive trigger for tacho's / timing lights.
If it it the connect-to-the-low-voltage-side-of-the-coil type, then you'll have to connect into either the coil pack wiring, or the signal from the ECU.

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The Engine Whisperer - fixer of things

i tink i will just copnnect to tacho pin on ecu, that will be the easiest i think

_________________
To be old and wise you must first be young and stupid.
If we aren't supposed to eat animals why are they made of meat?

yep, might be..
I think the factory tacho output is a variable voltage though, and not a pulse, which most tachos need.
If so you'll have to connect to the RPM signal pin, as opposed to the actual tacho pin.

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The Engine Whisperer - fixer of things

Well the shift light thing i got from jaycar can have four different inputs which are low voltage signal, points, the hall effect or the distrib so i think the output from ecu can go to the low voltage input.? Well i will find out today anyway heheh

_________________
To be old and wise you must first be young and stupid.
If we aren't supposed to eat animals why are they made of meat?

yeah, that'd be right.

I have pinout at work, so I'll check it tomorrow.

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The Engine Whisperer - fixer of things

Yeah thanx for all ur help dumhed, i got it all installed today its pretty bright for the size of the light, i like it
Yeah it was the red and yellow (cant remember) but it was pin 3 is the tacho output and i just built the shift light the way it says for low voltage input and it seems to be working fine so im happy for 30 bucks.
Once again thanx for ur help
Pete

_________________
To be old and wise you must first be young and stupid.
If we aren't supposed to eat animals why are they made of meat?

no worries, good to hear it works!

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The Engine Whisperer - fixer of things