Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

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Jeff Nicolay
Indian Wells, Calif.
(19 posts)

03/31/2012 11:23PM

Main British Car:
1976 Triumph Spitfire 1993 Mazda Miata (1.8 liter/5spd)

Tach wiring on Miata 1.8 in a Spitfire
Posted by: ainadude
Date: July 18, 2016 07:28PM

Greetings to all from Honolulu ... Mrs. Peel is back in the Aloha State at last but I still have much to address. Have all gauges working except the tach (granted, the speedo probably isn't remotely calibrated) but am not sure how to do the tach w/o a traditional coil setup. Pretty sure somebody's been down this road ... would appreciate any guidance.

Fred Key
West coast - Canada
(1259 posts)

05/14/2010 03:06AM

Main British Car:
What if the Hokey Pokey really is what it's all about?

authors avatar
Re: Tach wiring on Miata 1.8 in a Spitfire
Posted by: DiDueColpi
Date: July 20, 2016 08:15PM

Hey Jeff,

you should have a black wire with a white tracer coming off your ECU.It's on connector 4 (the biggest connector) terminal "L"
That's the tach feed wire.


doug milligan

(36 posts)

07/26/2010 08:17AM

Main British Car:
1978 Triumph Spitfire Mazda 1.6 liter

Re: Tach wiring on Miata 1.8 in a Spitfire
Posted by: mildo04
Date: August 02, 2016 02:45PM

Hey Jeff,
Congrats on getting Mrs. Peel back! I have a tach wiring diagram on my 2nd page of my build thread, which is still active. How is Mrs peel running these days? I know you went thru much time and pain with your builder to get her done.

You may not believe it, but I am considering selling my spit....I have a new project in mind v6 into a TR7 and need the space. Know of anyone looking for a well broken in Spit with an awesome miata engine?


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