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#21 |
Senior Member
Join Date: Jul 2011
Location: Redondo Beach, CA
Posts: 5,925
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I have run 3Xs in the past but now run W-18s. The W-18s run a little cooler than the 3Xs with my set up.
Last edited by Y-Blockhead; 11-10-2019 at 11:30 PM. |
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#22 |
Senior Member
Join Date: Jun 2010
Location: San Diego, CA
Posts: 1,489
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I run original Champion 3X plugs in all of my Model A's and have never had problems with them.
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#23 |
Senior Member
Join Date: May 2010
Location: Ogden Utah
Posts: 242
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Same set of 3X for 35 years see no need to change
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#24 |
Senior Member
Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
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Motorcraft TT10 for me. They run well but sure don’t look like the 3x’s.
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#25 |
Senior Member
Join Date: Jun 2013
Location: Marana Arizona
Posts: 1,778
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Champion W18 set at .035 with a Snyder's 6:1 head. Just pulled them after the first 2000 miles, looked great... Chap
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#26 |
Senior Member
Join Date: May 2010
Location: Long Island, NY
Posts: 3,527
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Bob Bidonde |
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#27 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 8,099
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#28 |
Senior Member
Join Date: Jul 2010
Location: west coast Fla..
Posts: 311
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W-18 champion, they perform well for my original model A...
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#29 |
Senior Member
Join Date: Jan 2015
Location: New York
Posts: 943
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Autolite 3076
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#30 |
Junior Member
Join Date: Jul 2010
Posts: 13
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Ac 77l com
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#31 |
Senior Member
Join Date: May 2010
Location: Lakeland, MN
Posts: 310
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Always 3X in my Model A’s.......
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Jeff P./MN 1913 Model T Runabout 1926 Model T Sport Touring 1948 Chrysler New Yorker |
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#32 |
Senior Member
Join Date: May 2010
Location: PA Poconos
Posts: 723
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Is anyone using Champion C-4's?
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#33 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 8,099
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I have used Champion C-4 with good results . The Champion C-4 plugs haven't been offered in many years . I like the look of the two piece Champion spark plugs. Most comment on the two piece plugs and think that they are original . There is a huge difference in the price of of The Champion 3- X and C-4 spark plugs . The C-4 plugs don't seem to be too cold and run clean in the model A's that I use them in. I sometimes buy new old stock C-4 spark plugs when I can find them . Champion W-18 spark plugs are readily available and are thought to be the same heat range as the original 3X but aren't two piece spark plugs like the 3-X .
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#34 |
Senior Member
Join Date: May 2010
Location: PA Poconos
Posts: 723
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Back in the day (50's-60's), C-4's were considered the standard plug. How times change!! I had never heard of a 3-X until last year when I got back into the Model A world.
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#35 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 8,099
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The first set of spark plugs that I bought for my model A was Champion C-4 . This purchase was over the counter at Thomasville Auto Parts in 1960 . The metal part of these spark plugs was zinc or some such silver colored plating like modern Champion spark plugs . These spark plugs cost maybe sixty something cents or less each . I decided to try these old used spark plugs again after all of these years . I cleaned and gapped the plugs and installed them in the same model A that I got them for 59 years ago . The model A cranked right up and seemed to run pretty good . I decided to remove and replace the C-4s with Champion W-18s . I think I'll try the C-4s again if I need Them . I think that most of us change the spark plugs way too soon in our model A's .
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#36 |
Senior Member
Join Date: Jul 2019
Location: Oklahoma City, OK
Posts: 184
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If you all make any big changes to your spark plug choice please let us know why. I think this thread has given me a little insight into spark plug selection.
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#37 |
Senior Member
Join Date: Aug 2018
Posts: 2,332
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This is like many Model A subjects. Since it is not fuel injected, no sensors, not electronically controlled, what works best for one car is not what is needed for another Car. So you tune/adjust the best you can, and choose a plug that works best for you.
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#38 |
Senior Member
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 1,163
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That's a very sharp statement from 30 CCP!
The low compression and the coarse carburetor as well as the rarely optimal ignition point result in never optimum stoichiometric combustion. Even the unregulated huge cooling water system and oil volume can not run the engine in the favorable operating temperature. Therefore, sooty spark plugs, once brighter, sometimes darker, are just as normal as a clutch that jerks something, a gear that sometimes scrapes and a wobbly steering. This is normal for a 90-year-old car, so it pardons many of the mistakes, that modern engines would kill if they did not have 1000 electronic guards. You have to drive with it, you have to be generous and tolerant like with your beloved old frail dog who does not hear well anymore and sees and hobbles. That's life with our old iron car "Model A"!
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Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
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#39 |
Senior Member
Join Date: Aug 2012
Posts: 895
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Your light switch is upside down...
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The Master Cylinder Enjoying life at the beach in SoCal... |
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#40 |
BANNED
Join Date: Sep 2017
Posts: 385
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