Best plugs to use with an MSD setup

[ssok]

Im currently running some Bosch platinums in my truck, and I am going to install a complete MSD setup when I can go outside and still feel my fingers.

Whats the best plugs for this? E3's seem like gimmicks, and I have heard many-a-time that people have built high performance engines and had major plug issues... until they put in some old-school coppers.

This is also for a newer EFI motor (with distributor) but I will be helping a friend install an MSD setup as well in his Clonerunner soon. Im using coppers in my RR, but I figured I would ask.

 

[Meep-Meep]

I've always had good luck with Autolites or Nippondenso.

 

[scotts74birds]

Funny thing I noticed recently. The manufacturers all seem to recommend the platinum plugs in their V-6 motors that require intake manifold removal to replace them. These can go 100k between changes. But not for their easier to access 4 cyls. I dont think the platinum gives ANY performance advantage, just longevity.

 

[SUPERSTOCKRACER]

In all my wedge motors with flat top pistons and MSD ignition I always and only use NGK v power plugs. 5672A-7 for low compression. like 9.0 to 10.9:1
5672A-8 for up to 13:1
5672A-9 up to 16:1

 

[67 B-body]

Stiring the pot!

I know its an older post, but I have to add my thoughts.
I'm an electrical / robotics engineer, also ASE cert automotive and know a bit about electricity and how it behaves.
Current is only going to travel the spark plug gap, one location at a time! I dont care how many wires there are to the plugs shell,,,, You get one jump when the coil disipates its saturated charge and only one wire is jumped to.
Current will always take the path of least resistance period! This is just how it works with electricity. Understanding the basic principles of this can help when choosing spark plug types "staying away from gimmics", and also knowing how heat ranges affect things. Asking questions like what is my head made of and how will it transfer the heat built up in my plugs electrode and wire / shell. How rich is this engine typicaly going to be running and what are my concerns of fuel fouling as a result? Does my engine use oil and and foul the plugs as a result of this? Also, how long of a reach is required from the head design?
Now then, knowing that many of the spark plugs out there come right out of the same factory, it's a gamble to say any one is truley better than the next. Take for example, The autolite plant in Fostoria Ohio has made plugs for Sears, A/C Delco, and Split Fire and of course, Autolite.
I can say that from a personal experiance level, I have had great luck with Autolite spark plugs and they are readily available just about anywhere at a reasonable price. Does that mean the others are inferior? NO!
You'll have people tell you that the one they use is the best, and nothing else is worth trying....but I would wonder about the advice givin from someone like that. Try a couple different brands of the non exotic lower priced readily available plugs and see what you think, then if you want try the more expensive options and see if you notice an advantage over the others.
Just my two cents!:bootyshake:

 

[SUPERSTOCKRACER]

just stay away from the new champion sparkplugs. there has been problems with the porlean part breaking off causing the metal strap to hit the piston and ruining your cylinder walls.

 

[mark42202]

LOL, it's not just the new Champions, Chris. I haven't seen Champions perform well in over 18 years! I'm with you on the V power NGK's. Take it from a group of guys who take their racing extremely seriously and have the means to do real world track testing of several plugs. Every one of our cars run V powers, and that includes 3 nitrous cars, 2 street cruisers, and 2 blown cars. Take it for what you will, but we only use what works the best and is the most dependable.

 

[SUPERSTOCKRACER]

LOL, it's not just the new Champions, Chris. I haven't seen Champions perform well in over 18 years! I'm with you on the V power NGK's. Take it from a group of guys who take their racing extremely seriously and have the means to do real world track testing of several plugs. Every one of our cars run V powers, and that includes 3 nitrous cars, 2 street cruisers, and 2 blown cars. Take it for what you will, but we only use what works the best and is the most dependable.

Very well said Mark,
Never had a bad plug and NGK are definitely a performance sparkplug. I heard autolites are very good as well. But I'll stick with NGK and for $2.00 a sparkplug, you cant beat that with a stick.

 

[Randy73]

What type of heads Alum or Iron?

A lot of people froget that heat range in an important factor.

I run NGK in my vette(alum), champion copper in the Cuda and Charger(both iron).

 

[wedge5]

You just can't go wrong with NGK plugs!

 

[SUPERSTOCKRACER]

I might try Autolites next time around.

 

[rumblefish360]

I've never liked the way the engine runs on Autolites. It seemed flat. Champs work best in my N/A SB.

My wifes Ford loves the Autolites. The Plat. series works best in her Taurus.

 

[SUPERSTOCKRACER]

I really like the heat ranges of the NGK Plugs, lower the number the hotter the plug, higher the number the colder the plug.