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11-08-2017, 09:56 AM | #1 |
Registered User
Join Date: Aug 2013
Location: Atlanta, GA
Posts: 702
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Plug and wire question
I see a bunch of adds for high performance plugs and wire sets. One that comes to mind with plugs are the ones with 3 contacts at the electrode. Is there really any performance gain with these parts or for that matter a hotter coil over a stock GM HEI? Thanks in advance for the advice and comments.
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1968 C10 292/3 spd - sold 1969 K10 350/3 spd/205 - sold 1971 K5 350/4 spd/ 205 - sold 1970 K20 350/350/205 - sold 1969 K20 396/400/205 - work in process |
11-08-2017, 12:30 PM | #2 |
Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Plug and wire question
I haven't used any of the high voltage coils but the high performance spark plugs I've used. I didn't notice any noticeable gain in power or fuel consumption but it may be that the gain on this products is small and takes time.
Overall, from my experience, don't expect to notice a significant and immediate change.
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
11-08-2017, 12:31 PM | #3 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,557
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Re: Plug and wire question
go to utube and search....there's lots of dyno tests on this...they do seem to show small gains
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11-08-2017, 01:05 PM | #4 |
Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,760
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Re: Plug and wire question
Physics is pretty simple, really. An electrical spark will jump to the nearest ground, meaning that only one of those electrodes is actually doing any work. Two electrodes, three electrodes, or thirty electrodes, the physics doesn't change.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
11-08-2017, 09:57 PM | #5 | ||
Registered Truck Offender
Join Date: May 2008
Location: hells training ground (aka Ariz)
Posts: 3,118
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Re: Plug and wire question
Quote:
Something from the 1976 SAdesigns book how to hotrod your small block chevy... Quote:
As compression and cylinder ressure goes UP, resistance of the spark jumping the gap becomes greater. So you need a coil with higher 'punch' to force the spark across the plug gap in the extreme high pressure. A stock coil is more than enough to drive the spark across the gap in stock (street) applications.
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Still playin with trucks, even at my age! When you're dead, it's only a problem for the people around you, because you don't know you're dead. .....It's kinda the same when your STUPID. I just did my taxes and reviewed my SS statement. Thanks to the current administration it looks like I will only have to work till noon on the day of my funeral. |
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