Hayabusa Taco

Need a spark. All those tedious electrics, lights, tacho, wiring harness, etc

Hayabusa Taco

Postby redhead04 » Wed May 13, 2009 1:23 pm

As previously mentioned I have transplanted a Hayabusa in my race car, I dont have original Hayabusa Tacho, I am wanting to use the existing Tacho which is from early GSX1100, 1983. It was hooked up to the coils, can someone tell me if I can still use this original Tacho and do I have to break into the plug coil wires to connect it.?? :oops:
Thanks in advance
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Postby Camel » Wed May 13, 2009 10:01 pm

Redhead,

Generally, Hayabusa's use the Y/Bl wire from the ECU to feed data to the Tacho. Your 1983 GSX1100 tacho will be relying on a cricket moving beads on an abacus to get it's figures. I don't have a wiring diagram for an '83 GSX (but I've an FJ Holden Manual and a '47 Ford Mercury manual in my collection) but I doubt it would be as straightforward as using an inductor from the coils or plugging into a coil lead. Suzuki are buggers for making things hard.

Actaully, I thought the '83 still had a cable drive!

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Postby redhead04 » Wed May 13, 2009 11:11 pm

Thanks I know im old, can you suggest what aftermarket tacho to use??
cheers
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Postby Camel » Thu May 14, 2009 11:17 am

Hey!

I'm so old my 1983 GSX1100 days are clearer in my memory than what I did yesterday!

Redhead, as for the aftermarket tacho, mate, that's where someone else may have to help out. I know there's a few on the market and some of the blokes have bought them.

What I'm not sure about is the voltage of the Y/Bl wire, (12 v or 5 volt) otherwise it would be fairly straightforward picking which bike tachos are going to work. This is still a job ahead of me.

If I was back in Aus I could find out pretty quickly, but alas....
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Postby Tony » Thu May 14, 2009 1:40 pm

We fit AutoMeter 5" Monster tacho's to the Busa engines & they work a treat.
"There can't be a practical reason for believing in what isn't true" – Sir Bertrand Russell.
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Postby redhead04 » Thu May 14, 2009 2:09 pm

OK thanks I will look into it, can you get higher than 10K model?
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Postby Tony » Thu May 14, 2009 2:27 pm

Yep, AutoMeter do an 11,000 rpm version.
Thats pushing the engine to the absolute limit, (and beyond).
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Postby The Architect » Thu May 14, 2009 2:59 pm

can always opt for a cheaper model, ebay do heaps of type-r ones, they arnt the best but they do the job, ive seen a few in action and they work fine.
no one cares mate
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Postby redhead04 » Thu May 14, 2009 6:20 pm

OK sounds like what I need I will ckeck them out.
Thanks for the advise :lol:
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Postby Camel » Thu May 14, 2009 7:14 pm

Tony,

which wires are you using to drive the autometer?

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Postby Tony » Thu May 14, 2009 8:40 pm

We pick up the Tacho wire feed from the computer.
Then there is just power wires to fire up the tacho & back lighting.
The Tach has a series of wires on the back to set it up for how many cylinders.
Normally you just cut away the ones not required.
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Postby Camel » Thu May 14, 2009 9:21 pm

Hmmm,

Sounds simple, looks good, what's your best price?

:wink:

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Postby The Architect » Fri May 15, 2009 12:42 am

they arnt cheap, depending on series of gauge
no one cares mate
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Postby redhead04 » Fri May 15, 2009 9:17 pm

Im looking at Specometer Tacho, have you heard of them?
http://www.speco.com.au/tachos.html
:D
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Postby V8 Ogre » Fri May 15, 2009 9:43 pm

520-10 is the one I've used with the zx9, easy to hook up, seems to work ok. Wasn't cheap!
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Postby redhead04 » Fri May 15, 2009 10:25 pm

That's the one, main reason Im going to use it is it's smaller size as I haven't got a lot of room to fit my gauges. How much did you have to pay??
Thanks
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Postby V8 Ogre » Sun May 24, 2009 2:31 pm

Sorry Red, can't find the docket for it and can't remember the price exactly but I still have a foul taste in my mouth when I think about it.....shop around.
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