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A Brisk 36 HP |
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FSJunkie
AMC Addicted Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4742 |
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Surface gap plugs are nothing new. Not much in the automotive world really is unless it involves ones and zeros.
I'm a general believer in OE engineering. The engineers who designed our engines knew about plugs similar to those, and they would have used them if they made a worthwhile difference in performance, which means they probably don't. Instead, the talented engineering staff at AMC designed their combustion chambers to work best with the spark plug they chose, or were assigned. Either way, it was the cheap old Champion N12Y.
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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Buzzman72
AMC Addicted Joined: Sep/15/2009 Location: Southern IN Status: Online Points: 2726 |
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Back in the day, we bought a copy of PERFORMANCE AMERICAN STYLE and ran the Champion N9Y or N10Y plugs like they recommended and were happy...once we replaced the carbon-core plug wires.
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Buzzman72...void where prohibited, your mileage may vary, objects in mirror may be closer than they appear, and alcohol may intensify any side effects.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19689 |
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The plugs ARE NOT NEW. Someone sold a similar plug back in the 70s and early 80s as a plug for worn engines. The theory is that you have multiple paths for spark, so when one fouls another will pick up. I guess with everyone running some sort of high energy electronic ignition in competition that the multiple paths fire more than one at a time (maybe all?) and can ignite the mixture quicker/easier. If you have a brand new plug and good wires and ignition I don't see this making a noticeable increase in power. As you run the engine and maybe get a little fouling it might make a difference. Good solid core rather than carbon core wires are really all you need -- there hasn't been much change in copper wire tech in a hundred years! That's pretty much fixed, unless some new alloy has been come up with that conducts electricity better...
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Frank Swygert
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Hurst390
AMC Addicted Joined: Apr/20/2008 Location: secret Status: Offline Points: 5822 |
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Champion plugs and bias ply tires! OE Engineering to the front!!
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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Hurst390
AMC Addicted Joined: Apr/20/2008 Location: secret Status: Offline Points: 5822 |
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The info coming in from various people says everyone thats tried them has a gain. Tim Wilkerson uses the wires on his TFFC.
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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Hurst390
AMC Addicted Joined: Apr/20/2008 Location: secret Status: Offline Points: 5822 |
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SC/Hurst Rambler
11.62 120 100% Street Legal |
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JGRANTAMX
AMC Addicted Joined: Jun/02/2017 Location: Maine Status: Offline Points: 1703 |
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Back in the day some guys indexed spark plugs to make them all the same at optimum position and that would increase HP, so what happens to that theory when these miracle plugs are used? If the wires are holding back that much energy would it make more sense to just get a coil with more output to comp for it? I would think coil manufacturers would keep increasing the output if it made that much of a difference.
J
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Heavy 488
AMC Addicted Joined: Apr/27/2019 Location: In the Status: Offline Points: 3557 |
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Go back to solid core wires like the 50's. Pull metal braid over them and ground the end like an old Vette to kill off RF. Should have all that magical horsepower back.
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H60
AMC Apprentice Joined: Aug/09/2014 Location: Wister,Ok Status: Offline Points: 162 |
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I guess my hemi with 16 spark plugs would gain 72 HP? It doesn’t have wires so no gain there. I know sounds like trolling but just been reading where this was going. No harm or derogatory to anyone meant.
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Mike 1968 Blazerblue 390,4sp AMX
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Boris Badanov
AMC Addicted Joined: Dec/14/2013 Location: NH USA Status: Offline Points: 4210 |
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All due respects but the impedance (ohms) means
precisely nothing as long as the fire is being lit at all RPMs and loads . So at the risk of being a nay sayer I remain unconvinced. Oh yea I have to comment on a multi gap plug and carbon fowling. Multi gap plugs were and I assume are still common in air craft engines. If my experience if you fowl one gap, none of them arc / light. A short is a short. That's primary reason why you have two mags and two plugs in an airplane engine. Also having huge bores and long flame travel is another. This is also why we perform a "mag drop test" before taking off. Taking off with a stumble or exceeding the TO-1 RPM drop when you kill one mag is a big no-no. Some huge piston engine prototypes had 8" + bores and stroke and were equipped with up to 4 plugs (maybe more). |
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Gremlin Dreams
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