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bowtiecrusher
Dodge Dakota
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5/10/2002
20:38:01
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 Subject: 3923 in my 4.7
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Message:
i installed them last week and it dont seem to have any good effect on power but seems my mpg droped to before i did any mods 15-19 after i did my 3" and my kn it was up to 17-21 anyone else have same outcome?
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Duner
Dodge Dakota
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5/10/2002
20:51:20
|  I didn't like them.
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They didn't work for me either. I lost throttle response and off-idle torque. It would also have a bit of a miss or stumble on occasion. I switched back to 5224s for smooth idle and good throttle response.
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jjj
Dodge Dakota
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5/10/2002
21:48:04
| RE: 3923 in my 4.7
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I had the same in my 5.9 and I'll say it again. On a stock or close to stock, non pinging engine the 3923 result in a power loss. They move the flame kernel out from the center of the comb. chamber and effectively retard the timing.
I am in the process of testing a new plug, looks promising but I actually have a tank of 93 in it now. Usually I run 87 with just a hint of pinging when WOT or towing uphill.
Now if you ping, the 3923's are an improvement.
AC rapidfires actually didn't work too bad in my 99 5.2.
Jeff
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boondocks440
Dodge Dakota
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5/10/2002
22:06:58
| RE: 3923 in my 4.7
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Message:
Try the AR3924's They have 75% less resistance than the standard Autolites. I installed these in my '01 R/T and immediantly noticed a more agressive exhaust tone. The MPG increased very slightly. I have about 600 miles on these plugs,
no ping, no power loss, 87 octane, nothing but GRINS.
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bowtiecrusher
Dodge Dakota
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5/10/2002
22:46:27
| RE: 3923 in my 4.7
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Message:
thanks for replys plezz keep me posted on which plugs you guys have luck with im going back to stock for now. lol changing plugs on 4.7 is so easy i enjoy it weeeeeeeeeeeeeeeeeeeeeeee
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B1llyw
GenIII
5/12/2002
19:04:32
| RE: 3923 in my 4.7
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Message:
I have a set of NGK ZFR5F11 I have to get around to installing. Until they started recommending those godawful expensive iridium plugs, this NGK plug was the one recommended by Kenne Bell for normally aspirated Magnum applications.
Bill White - 2002 QC 4x4, SLT , 4.7, 5 spd, 3.92's w/LSD, Airaid, MBRP Super Single, Hurst T-Handle, BFG A/T's, IAS Shocks, 180 T-Stat, Jet Chip - Stage II
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harlow wilcox
Dodge Dakota
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5/12/2002
21:57:25
| RE: 3923 in my 4.7
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Message:
Duner said it best folks.....he has good idle and throttle response from the correct Autolite application.
Now, why don't the others take the chance to change out those worn out OEM sparkplugs and install a set of high quality Autolite ignition engineered sparkplugs for your Dakota?
From bumper to tailight, you cannot go wrong with Autolite.
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CW
GenIII
5/12/2002
22:05:05
| RE: 3923 in my 4.7
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Message:
Key work there being worn out stock plugs.
2001 4.7HO RC 5sp 3.92 LSD
Click on thumbnail for mods.
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BlackDakRacer
Dodge Dakota
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5/13/2002
00:30:08
| RE: 3923 in my 4.7
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Message:
hey broken record, I would hope that a spark plug is ignition engineered!
"worn out OEM sparkplugs" LOL
~~Eric
This guy is more annoying than Ll Blackdak
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harlow wilcox
Dodge Dakota
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5/13/2002
20:38:01
| RE: 3923 in my 4.7
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Message:
BlackDakRacer, have you made the switch yet?
Try a set of Autolites today and see the difference.
Save money at the pump with better fuel economy.
Enjoy fast starts and a smooth running rig.
Try Autolite today!
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John925
Dodge Dakota
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5/13/2002
21:40:52
| RE: 3923 in my 4.7
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Message:
3923's seemed to slow my 0-60 down quite a bit,
I'm gonna try the 5224's if I don't heave a difference I'm putting the stock plugs back in
2001 4.7
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jjj
Dodge Dakota
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5/14/2002
22:06:41
| RE: 3923 in my 4.7
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Message:
Get either the stock Champs, or AC rapidfires worked well for me or (these are in test mode and looking good) Champ 4412's (truck plug w/projected tip, actually slightly longer than the originals, fits fine in the 5.9 but check it against your originals or check for clearance).
Towing the skiis through WV to Kentucky tomorrow and will see if pinging is gone (so far seems). Will run 87 octane with 6 deg additional timing.
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