[TR] TR4 Spark Plugs

[Andrew S. Mace]

 Last I knew, Champion still had an L82YC. I don't know what they might have that's any colder than that. Over the years, I've managed to find a few L66Y and L64Y plugs on eBay (they're what came with and what I used to use in my Spitfire 4 autocross car, which had previously been a GP SCCA race car in the 1970s).

 

--Andy Mace

*Mrs Irrelevant: Oh, is it a jet?
*Man: Well, no ... It's not so much of a jet, it's more your, er, Triumph Herald engine with wings.
-- Cut-price Airlines Sketch, Monty Python's Flying Circus (22)

Triumph 10 / Herald / Sports 6 vehicle consultant, The Vintage Triumph Register: http://www.vtr.org

Check out the North American Triumph Sports 6 (Vitesse 6) and Triumph Herald Database: http://triumph-herald.us
 

 

-----Original Message-----
From: Dan Forgey <cofrog at q.com>
To: triumph fot <fot at autox.team.net>; triumph <triumphs at autox.team.net>
Sent: Fri, Apr 27, 2018 8:11 pm
Subject: [TR] TR4 Spark Plugs



I've got a TR4 w/.100 off the head and Kastner D cam and headers here in Colorado (just over 5,000 ft.).  I'm running Champion L87YC plugs and am thinking of trying something colder as sometimes there is pinging when I'm not on it.  I see Champion makes an L86C but I have no idea how much colder this compared to the L87YC.   Anyone have any input?


Thanks,


Dan Forgey 


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