Page 5 of 5 FirstFirst 12345
Results 81 to 91 of 91

Spark plug king?

This is a discussion on Spark plug king? within the External Engine forums, part of the LSx Technical Help Section category; ...

  1. #81
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    39
    Posts
    25,693

    []D [] []V[] []D
    1999 trans am


  2. #82
    Rice Killa JwMonE99's Avatar
    Join Date
    Aug 2006
    Location
    Myrtle Beach
    Age
    27
    Posts
    5,561

    Black With T-Tops
    96 Z28 M6

    This sounds interesting, i might want in on this as well but not at the moment.
    (383 stroker coming soon...)

  3. #83
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    39
    Posts
    25,693

    []D [] []V[] []D
    1999 trans am

    i'm anxious to see the outcome!!!

  4. #84
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    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.

  5. #85
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    39
    Posts
    25,693

    []D [] []V[] []D
    1999 trans am

    Quote Originally Posted by Mr. Luos View Post
    #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.
    are you serious??? i'm way to lazy to do that... i'd rather struggle underneath the car with 2' of extensions and a swivle socket...

  6. #86
    O U 8 1 2 Spaz's Avatar
    Join Date
    Nov 1999
    Location
    over here...
    Age
    39
    Posts
    25,693

    []D [] []V[] []D
    1999 trans am

    Quote Originally Posted by Spaz View Post
    are you serious??? i'm way to lazy to do that... i'd rather struggle underneath the car with 2' of extensions and a swivle socket...
    plus with my luck i'd have a quter fall out of my pocket and in to the heads and not see it when i put the vavle cover back on...

  7. #87
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by Spaz View Post
    are you serious???
    Damn right.

    5-6 minutes of work to save 45 minutes.

  8. #88
    Single Malt rbob93's Avatar
    Join Date
    Aug 2005
    Location
    Ft. Lauderdale, FL
    Age
    69
    Posts
    2,707

    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??

  9. #89
    Slow'er'Ass Mr. Luos's Avatar
    Join Date
    Aug 2005
    Location
    Thornton, CO
    Posts
    23,785

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Quote Originally Posted by rbob93 View Post
    But why the valve cover??
    I move the coil pack out of the way & find there's plenty of room.
    Am I missing something??
    I have large hands. Just helps with the angles for me.
    Also, I have an electric temp. sender right above #8...which limits movement as well.

    Plus, doesn't hurt for me to check on my valvetrain once in a while seeing as I am running a 248/254 629/622.

  10. #90
    Crazy Canuck ! Eugenio_SS's Avatar
    Join Date
    Jun 2002
    Location
    Montreal, CANADA
    Age
    42
    Posts
    3,190

    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)

  11. #91
    Senior Member mrr23's Avatar
    Join Date
    Jul 2005
    Location
    orlando, fl
    Posts
    7,134

    dark bowling green
    2000 corvette

    redirect all coments and questions here
    Spark plug tech information and understanding them

Page 5 of 5 FirstFirst 12345

LinkBacks (?)

  1. 12-22-2011, 10:43 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. spark plug gap
    By asb1989 in forum General Help
    Replies: 13
    Last Post: 10-15-2009, 04:58 PM
  2. What kind of oil 5w30& spark plugs&spark plug wire
    By ROMERO98Z28 in forum General Help
    Replies: 20
    Last Post: 09-01-2009, 02:50 PM
  3. Spark plug wire and plug!
    By RYDER661 in forum General Help
    Replies: 2
    Last Post: 03-13-2006, 10:01 PM
  4. spark plug gap
    By C5_LS1 in forum Corvette
    Replies: 1
    Last Post: 01-31-2006, 01:07 PM
  5. NGK Spark Plugs - Combo Deal - MSD 8.5mm Super Conductor Spark Plug Wires, 1998-2002
    By Stealthperf.com in forum Sales and Group Purchases from our Great Sponsors!
    Replies: 1
    Last Post: 01-16-2006, 01:18 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •