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Location:
Perth
Registered:
October 2003
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1J Tacho
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Thu, 18 December 2003 10:40
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A few months ago i bought a JZA70 half cut and put engine, gearbox (m/t) and front cross member in my MA70 supra. Still to this day i have not been able to get my F*CK!IN tacho working. This includes opening my original dash and the analog dash that was in the half cut and swapping the tachos, which appeared to be exactly the same anyway. My MA70 was origanally a N/A 7m. Anyone know how the hell i can get my tacho working? I like to rev hard but i dont like hitting the limiter to often!!! i need my tacho!!!! PLEASE HELP 
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Location:
Sydney
Registered:
November 2003
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Re: 1J Tacho
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Thu, 18 December 2003 15:36
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You will need a Tacho converter... Grant from sixworks sells them. Do a search for previous posts on this topic.
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Location:
Newcastle, NSW, Australia
Registered:
May 2002
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Re: 1J Tacho
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Thu, 18 December 2003 20:48
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Wildsupra,
If you swapped the tachos over and it still does not work then you haven't connected the tacho wire correctly. If you still can't get it working correctly and you are in Sydney, contact Jim (aka Sideshow on this forum). He should be able to locate it in no time.
Grant
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Location:
Adelaide, SA
Registered:
May 2002
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Re: 1J Tacho
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Thu, 18 December 2003 22:54
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As Grant said, if you are using the half-cut tacho and it's not working you must have wired it incorrectly. I've done exactly the same conversion to mine, and although the jza and ma tacho drives look identical, there is a little board on them that has different components. We swapped this over on mine, and used the Ma70 tacho/needle combo with jza backing plate to keep it looking stock.
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Location:
Gold Coast
Registered:
May 2002
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Re: 1J Tacho
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Fri, 19 December 2003 00:08
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| pimp1j wrote on Fri, 19 December 2003 02:36 |
You will need a Tacho converter... Grant from sixworks sells them. Do a search for previous posts on this topic.
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Ahhh no you don't.. only on 4 cylinder tachos to you need a converter.
As others have said, check your wiring.
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Location:
Adelaide
Registered:
September 2003
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Re: 1J Tacho
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Fri, 19 December 2003 00:10
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| wastegate wrote on Fri, 19 December 2003 11:08 |
| pimp1j wrote on Fri, 19 December 2003 02:36 |
You will need a Tacho converter... Grant from sixworks sells them. Do a search for previous posts on this topic.
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Ahhh no you don't.. only on 4 cylinder tachos to you need a converter.
As others have said, check your wiring.
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Ahhhh, sorry, your'e wrong. The Tacho converter is not for different cylinder numbers, it is for the type of signal.
The product should be called Tacho Signal Converter. I'm about to get one for my MA61 with 7M-GTE
Oooroo
Michael B
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Location:
Newcastle, NSW, Australia
Registered:
May 2002
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Re: 1J Tacho
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Fri, 19 December 2003 00:34
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The product we sell is called a Tacho Booster because it 'boosts' the 12volt square wave signal to several hundred volts to drive coil type tachos. True, the waveform is changed but frequency remains the same. Depends on how technical you want to get.
Our new product, to be released early in the new year, will have the capability to alter frequency as well as boosting the signal.
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Location:
Adelaide
Registered:
September 2003
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Re: 1J Tacho
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Fri, 19 December 2003 00:37
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| Grant wrote on Fri, 19 December 2003 11:34 |
Our new product, to be released early in the new year, will have the capability to alter frequency as well as boosting the signal.
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Grant,
Thanks for the clarification. For my MA61 with 7M-GTE, does it matter if I get a new or old unit ? Is there a price difference ?
I'll get of my considerable ass and order one shortly - as soon as I get an answer 
Cheers
Michael B
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Location:
Newcastle, NSW, Australia
Registered:
May 2002
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Re: 1J Tacho
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Fri, 19 December 2003 00:41
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Yes, there will be a price difference but you really only need to boost the signal rather than change frequency so you'd be best to buy the current model. In any event, both models will be available, the new one will not replace the old, simply provide the extra functions of frequency division/multiplication for those who need it.
Hope this helps.
Grant
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Location:
Adelaide
Registered:
September 2003
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Re: 1J Tacho
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Fri, 19 December 2003 00:58
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An order has been sent by fax, Cheer Grant.
Wild Supra, sorry for the thread hijack, but hopefully you get it sorted soon
Cheers
Michael B
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Location:
Sydney
Registered:
November 2003
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Re: 1J Tacho
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Fri, 19 December 2003 01:53
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| Quote: |
wastegate wrote on Fri, 19 December 2003 11:08
pimp1j wrote on Fri, 19 December 2003 02:36
You will need a Tacho converter... Grant from sixworks sells them. Do a search for previous posts on this topic.
Ahhh no you don't.. only on 4 cylinder tachos to you need a converter.
As others have said, check your wiring.
Ahhhh, sorry, your'e wrong.
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ahhhh... who's saying ahhh now  hehe.
Grant i'm going to buy myself a 'booster' for xmas... i'll call u this week.
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Location:
Gold Coast
Registered:
May 2002
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Re: 1J Tacho
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Fri, 19 December 2003 04:31
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Perhaps I should make myself alittle clearer huh?
You DON'T need a "Tacho converter" if the EFI tacho is going from a 6 cylinder to a 6 cylinder.
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Location:
sydney
Registered:
March 2003
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