NGK vs Champion and regular vs resistor

[DK540]

Odd that I did not find any results about the above subjects when I did a search for spark plugs... figured it would be covered ad nauseum, but maybe different search terms would help.

Anyhow, I see that Pegasus sells the Champion N6YC as the correct plug for a Club Ford with a Kent and a cast iron head. I've always ("always" qualifier - only two years racing) used the NGK BP8ES. Differences? Preferences? Reasoning? Temperature the same? Core the same?

And, the local Advance Auto only had resistor style NGK BP8ES when I went to buy 4 spares. Any less electricity to the spark with resistors? NGK says it only has additional ceramic, but I have read that some plugs use a slightly modified core to make them resistor plugs. Any concerns with NGK resistor plugs? Do they differ in how they became resistor plugs from other manufacturers?

And, finally, I think, with the Pertronix II, both coil and module, I can increase the gap on any plug by .005. Concur?

Thanks all in advance!

David

[DanW]

+1 for NGK BP8ES. That's what Arnie Loyning puts in my FF/CF motor. It takes more voltage to spark a larger gap.

[EACIII]

Champion plugs are OK for your lawnmower but I would not put in any race or street car. Too many issues with them over the years. I use NGK and get them from Summit Racing. Buy a dozen at a time so I have spares.

Ed

[Offcamber1]

Champion plugs are OK for your lawnmower but I would not put in any race or street car.

Ed

I won't even use Champions in my lawnmower. (And I HATE my lawnmower!)

NGK or Bosch is all I use anymore. Long story behind that...

[Albatross]

I have used Champion spark plugs (N6YC) and Fram filters...for many years without any difficulty. Others, no doubt , have their personal preferences based mostly on "that feel good" feeling. I, too, have an Arnie engine. I have enjoyed many hours standing along side of Arnie while having my engines dynode. I have never questioned Arnie on his use of NGK spark plugs. Generally, engine builders use the plug that they can acquire that are the least expensive and will do the job. When I feel the plugs "may be" a little tired I change'm to Champion because I buy from Pegasus: plugs as well as many other items I usually buy 8 plugs at a time which I consider enough for the year. Pegasus gives me very good service and they are as close as my telephone and VISA card. I don't believe that one can discern any difference between the Champion and NGK plug on the dyno. Some driver/owners buy what they believe is a hotter better coil than the blue Bosch. Another waste of money and they look good...that "feel good" feeling without getting any better results. Want a faster car? Work on your driving and your car's "set up".

[Brian]

Resistor plugs, caps and wires are all to reduce RFI interference from the spark, which can affect any computer equipment in the vicinity. Has zero effect on the performance of the plug. Using a very high voltage coil and a large plug gap with old fashioned distributor caps and rotors can lead to misfires from carbon arcing.

[Buc01]

Interesting debate.

Just for more data to consider (not trying to convince anyone either direction), I currently run a 197 hp Pinto engine built by Quicksilver Racing Engines in my 1991 Van Diemen FC. The engine came with Champion plugs, uses an old fashioned distributor with points and condenser, and old fashioned Bosch Blue coil. The engine absolutely screams to 7,200 - 7,300 with no problem (well, except for I have to pull the gearbox and look at the gears after each race!!!)

Just sharing that Champions and old fashioned non high tech components can get he job done.

I ran many years in FF prior to FC and seems like my QRE engines all had Champions in them.. YMMV

Aaron

[Jon Jeffords]

Using a very high voltage coil and a large plug gap with old fashioned distributor caps and rotors can lead to misfires from carbon arcing.

True, but the larger plug gap will yield an ever-so-slight increase in power (due to more consistent flame kernel propagation out of the plug gap). Definitely a lever to pull if you are only a tenth or two off the track record.