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914World.com _ 914World Garage _ Choice of plugs???

Posted by: ninefourteener Nov 15 2004, 11:09 AM

I took the teener out for a short drive the other day. Its much colder now, so it took considerably longer to warm up. Once it did, it ran great, as usual. However, while it was still cold, I noticed a bit of backfiring on decelleration.

I figure its about time to drop a new set of plugs in the car.

It's a 2.0-4, with dual Solex Carbs. The carbs are set REALLY rich, so it's pretty "gassy" at startup, but once it warms up, I love the way it runs, so I don't want to mess with the settings.

Everyone has a different opinion on a good set of plugs for good performance. I've used Accel, splitfire, Bosch +4, etc. Some cars like em, other's don't. Of course, that was in my old 70's GM days. Never put a set of plugs in the teener yet.

Suggestions on a good plug for my situation?

Posted by: Root_Werks Nov 15 2004, 11:31 AM

Bosch

W7DTC - tripple electrode, work great on carbs.

W7DC - stand Copers, work fine, less $$$ then the DTC's.

NGK

BP7ES - Is that the number?

Either way, both plugs in that heat range should work well with you engine set up. The DTC's the best, but they are like $3-4 a plug.

Posted by: Root_Werks Nov 15 2004, 11:33 AM

Oh yeah, add an "R" to any of the part numbers if you listen to your radio.

Posted by: joea9146 Nov 15 2004, 11:58 AM

NGK Copper tip Either BP7ES of BP6ES

Posted by: nebreitling Nov 15 2004, 03:16 PM

pull the plugs and see what they look like.

a little rich is okay -- a lot rich ain't.

was it backfiring through the exhaust or carbs?

Posted by: KenH Nov 15 2004, 04:01 PM

W7DTC

Ken

Posted by: Brett W Nov 15 2004, 05:23 PM

Bosch Plugs suck. I won't run anything but NGK B7ES or maybe even a B6ES for a hotter running plug. My cars and carsI have tuned have never run worth a crap on Bosch plugs.