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Thread: Spark plug king?
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07-09-2008, 06:04 AM #81
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[]D [] []V[] []D- 1999 trans am
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07-09-2008, 08:16 AM #82
This sounds interesting, i might want in on this as well but not at the moment.
(383 stroker coming soon...)
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07-09-2008, 08:17 AM #83
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[]D [] []V[] []D- 1999 trans am
i'm anxious to see the outcome!!!
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07-09-2008, 08:50 AM #84
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Red Tint Jewelcoat- 2008 Trailblazer SS
#8 takes me 10 minutes.
Entire swap in about 45 minutes. Largest part of the time is the coilpack and valvecover removal and re-install.
And damn right I am a pussy Sarge.
Like I said, I have to verify I can get the dyno time.
And that I personally can find the time. Life has been pretty full lately.
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07-09-2008, 08:53 AM #85
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07-09-2008, 08:53 AM #86
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07-09-2008, 09:01 AM #87
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07-09-2008, 09:42 AM #88
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Sebring Silver- 2000 CamaroSS
But why the valve cover??
I move the coil pack out of the way & find there's plenty of room.
Am I missing something??
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07-09-2008, 09:45 AM #89
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07-14-2008, 06:54 PM #90
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triple-black- 2000 CamaroSS convertible
I have a few questions, though.
Ohm's law is not really applicable on a spark plug, the theory of electrostatics and Coulomb's law would be more appropriate.
Basics on a spark plug is on the stated above... you have electrically charged plates with a given distance from one another (gap).
Now, by increasing the voltage difference, you will reach a point where the attraction on the charged particles will exceed a threshold, and charges will jump from one side to the other, creating the spark.
Now, if you increase the gap, it takes more potential (voltage) for the spark to occur... the reverse is also true.
As for the internal resistance in the spark plug, it would limit the amount of current flying through the spark plug when in "spark" mode... ie when the voltage is big enough to cause the spark. (Remember that when no spark, there is no current, it's an open circuit).
Now let's consider the closed circuit when "in-spark".
With a 0ohm equivalent resistance, the whole charge would dissipate very fast, but stronger... a higher resistance will limit the current and make the spark last longer... yet the spark won't be as strong.
Now the questions:
1. Given that I have a certain amount of fuel and air in the combustion chamber, based on the car tuning... all being equal, for burning fuel, which is more efficient @ burning more fuel... shorter-time/more intense-spark or vice-versa ?
2. Can't the same result be achieved with changing the gap parameters ?
3. Let's assume the new spark plug actually burns fuel more efficiently, which means that it would increase the A/F ratio... which means I would have to retune the car with more fuel so I don't run too lean... if that is the case, then I can see where I can get more hp, because it's burning way more efficiently... but that can't be achieved with simply a dyno pull. That means I need to tune on the new plugs.
Let's say this is the case, and the spark plugs do that... which is a good thing for the product, actually... that means I should be careful on just putting those plugs and running WOT, cause if they are more efficient, my A/F is higher and I'm running leaner... I need to tune, and I can see getting some more power by running lean, but not a position I would want to be in ... if anything, I can add more fuel and still have a bit more power and feel better with the given A/F ratio.
4. have you seen that comparing back to back, by simply changing plugs that the A/F will increase ?... and by which extent ? This should give a good indication on the gains one could achieve with the "improved" plugs if they do as claimed.
I'm not bashing, but as an Electrical Engineer I still have some unanswered questions that I would like to be answered with some credibility, not with confusing and inconsistant nomenclature, mixing power, potential, current, as stated previously.Eugenio_SS
almost stock triple-black 2000 SS convertible with 17x11s on all 4 w/ 315s at the track or on the street with 18x10.5s on all 4 w/ 315s: (1), (2)
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07-15-2008, 01:58 PM #91
redirect all coments and questions here
http://www.ls1.com/forums/showthread.php?t=91751Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge, some checkered stripes, drilled/slotted rotors, ZL1addons Stealth wickerbill, Ruxifey LED side markers
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