[Fot] Sparkplugs

[Terry Stetler]

I’ve noticed that non resistor NGKs have been replaced by the resistor type of the same heat range.  I’ve been putting them in street cars for a while now with no apparent issues on my customer’s cars.  Will they affect any changes on a race application?  Honestly I’m not sure, but most electronic ignitions require some kind of resistance in the plug wires, so I can’t see that they would hurt anything.  I’m certainly not going to stop using NGKs, they are the best.

Terry Stetler

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From: Michael Moore via Fot<mailto:fot at autox.team.net>
Sent: Saturday, July 10, 2021 8:33 AM
To: Amici Triumphi<mailto:fot at autox.team.net>
Subject: [Fot] Sparkplugs

I have been using NGK-BP7HS in my TR4. Recently I have been trying to buy some new ones and everybody is out of them or they are NLA. A couple of places have said that they are being replaced by NGK-BPR7HS. Has anybody else ran into this? I don’t think it is COVID related.

The R stands for Resistor. Can I use the replacement?

Thanks, Mike

62 TR4, Race car
63 TR4, Street car

Mike & Becky Moore
6050 Ruhl Road, Fairview, PA 16415
814-323-0698
mmoore at mtmcpafirm.com<mailto:mmoore at mtmcpafirm.com>


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