Montezuma Posted October 28, 2007 Share #1 Posted October 28, 2007 Does anyone here have any experience with Ultra direct ignition system that my friend sent me from Japan. It came off a L28 3.1. I two total systems and 3 modules, plus Ultra wires. The thing I does not have instructions, I plan to intall in a N42 3.1 with Mikuni 44s. If it works it will be very interesting. All the web research I have been doing on Ultra comes up saying it is for Jags. Not sure what I got here, but my friend is convinced it will work on the Z again. Any advice would be appreciated. Tried to get the system working yesterday but it would not get spark. Anyone ever work with this system? I saw a picture of the system in Lighting Vintage Auto 9 Mag. I was on a G-nose. Anyone with advice would help. Thanks in advance. Maybe Kats might know something about it? Link to comment https://www.classiczcars.com/topic/26049-direct-fire-ignition-system-by-ultra-nagai-electronics/ Share on other sites More sharing options...
HS30-H Posted October 29, 2007 Share #2 Posted October 29, 2007 You can find the appropriate wiring schematic on the Nagai Denshi website:http://www.nagaidenshi.co.jp/The MDI, MDI-R and MDI-RR wiring diagrams are listed on the left hand side of the home page. Link to comment https://www.classiczcars.com/topic/26049-direct-fire-ignition-system-by-ultra-nagai-electronics/#findComment-226583 Share on other sites More sharing options...
Montezuma Posted October 29, 2007 Author Share #3 Posted October 29, 2007 You can find the appropriate wiring schematic on the Nagai Denshi website:http://www.nagaidenshi.co.jp/The MDI, MDI-R and MDI-RR wiring diagrams are listed on the left hand side of the home page.That is the site I was looking for. I did a google search but it did not come up. I was thinking that you might know the website, I was thining of sending you a PM instead of starting this tread. I sent the link along to my friend at Nissan USA who owns the car I am working on. He will interpret the Kanji for me and get me the proper diagram. We should get it fired this weekend. Thanks so much. Link to comment https://www.classiczcars.com/topic/26049-direct-fire-ignition-system-by-ultra-nagai-electronics/#findComment-226594 Share on other sites More sharing options...
HS30-H Posted October 29, 2007 Share #4 Posted October 29, 2007 OK - good luck. If you get stuck with the translation I'd be happy to take a shot if you think it might help.Cheers,Alan T. Link to comment https://www.classiczcars.com/topic/26049-direct-fire-ignition-system-by-ultra-nagai-electronics/#findComment-226622 Share on other sites More sharing options...
nismo_zxt Posted September 9, 2013 Share #5 Posted September 9, 2013 (edited) Hi Alan, I have the same concern. I got a old L6 udi setup with japanese user manual and I can't find info about this old setup. Maybe you could help in translate or point me out on something similar. Here's my setup. Thanks in advance Edited September 9, 2013 by nismo_zxt Link to comment https://www.classiczcars.com/topic/26049-direct-fire-ignition-system-by-ultra-nagai-electronics/#findComment-431386 Share on other sites More sharing options...
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