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Geoff
Unregistered
1/22/2001
07:39:11
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 Subject: Autolite 3923 question
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Message:
Are these plugs "pre-gapped" if not what does the gap need to be ? (3.9L)
going to get a set today and since they are not the plugs listed for the dakotas i doubt the guy at pep boys will have a clue as far as gap
Thanks
Geoff
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intense99dak
Gen III
1/22/2001
07:52:58
| RE: Autolite 3923 question
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Message:
No, these plugs are not pre-gapped. You'll need to check them before installing them.
If you have the stock ignition, gap them at 0.035. If you have the MSD or equilivent ignition, gap them at either 0.045 or 0.050.
Chuck Robbins
'99 Dakota Sport
www.intense99dak.com
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Bernd
GenIII
1/22/2001
14:47:20
| RE: Autolite 3923 question
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Message:
Factory gap is .040" on '97+ Daks.
Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous
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dakotapta1
Unregistered
1/23/2001
12:40:31
| RE: Autolite 3923 question
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Message:
I am just wondering if there is any change in how much MPG's either increase or decrease you will get with the plugs since they are a colder plug?!?!?
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Bernd
GenIII
1/23/2001
20:17:49
| RE: Autolite 3923 question
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Message:
That would depend on your driving style. Personally, I haven't seen any decrease in MPG (or increase).
Bernd D. Ratsch
1997 Dodge Dakota SLT
Supercharged w/Nitrous
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ttt
Dodge Dakota
JOIN HERE
8/02/2003
16:15:52
| RE: Autolite 3923 question
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Message:
heh heh heh
ttt
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sildak
Dodge Dakota
JOIN HERE
8/02/2003
17:37:54
| RE: Autolite 3923 question
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Message:
3923 WASTE OF TIME MADE MY 4.7 RUN LIKE CRAP.
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smarterthenu
Dodge Dakota
JOIN HERE
8/03/2003
09:49:07
| RE: Autolite 3923 question
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Message:
the 3923's are for the older 5.2, 5.9 and 3.9 only NOT 4.7
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Mark
Forum Moderator
8/03/2003
12:43:30
| RE: Autolite 3923 question
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Message:
I have a 5.2 with the factory suggested gap of .035... With my MSD I gap them at .040 or .0425 I find that with the .040 they last longer. Not that they wear any faster, but I get a hard start and rough cold idle sooner when gapped higher than .040
Oh yeah, Ive been using the 3923's for the past 3 years or so and find it to be the best plug on the market for my engine. Has anyone tried the platinum 3923's? I'm a little wary of the platinum plugs
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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Mark
Forum Moderator
8/03/2003
12:44:44
| RE: Autolite 3923 question
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Message:
I'd like to add that both the 3923's and platinum 3923's are regular shelf items at walmart. They are sold in blister packs of two.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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bowhunter
Dodge Dakota
JOIN HERE
8/03/2003
14:12:11
| RE: Autolite 3923 question
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Message:
Mark: What's the big deal with 3923's, as opposed to
say Bosch, NGK etc? what sort of difference does your
MSD ignition make as opposed to the stock one. I have
a 98 Dak 4x4 with a 3.9. Thanks
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Mark
Forum Moderator
8/03/2003
16:14:32
| RE: Autolite 3923 question
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Message:
I found the 3923's to run much smoother. No ping. I wouldnt consider them a high performance modification, its just that the OEM 3924's are a little too hot for the engine. All other ones Ive used were consistant with the 3924's which are one heat range hotter than the 3923's. Thats pretty much it in a nutshell.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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Mark
Forum Moderator
8/03/2003
16:17:45
| RE: Autolite 3923 question
IP: Logged
Message:
The MSD-6a ignition that I use produces a more powerful spark and three per ignition. It wears out your plugs faster. Its not really a replacement for the stock ignition, its just an add on kind of like an amplifier. In addition to that, I run the Blaster coil which has a higher voltage over the stock coil and the capacator to help with engine noise.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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Mark
Forum Moderator
8/03/2003
16:23:16
| RE: Autolite 3923 question
IP: Logged
Message:
One more thing... I bought my MSD ignition 6-7 years ago and I have to say it was the best bang for the buck. I felt immediate seat of the pants power increase not to mention a 5-10% gain in MPG. Over the past 75k miles or so that Ive been using it, every dollar was returned to me in fuel economy. I would highly recommend the MSD 6a. I believe I paid $135 or so back then with another $25 for the coil. Doing some quick math with a modest 5% gain in MPG thats approximately 250 gallons of gas saved over time.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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Demon Dakota
DakotaEnthusiast
8/03/2003
16:41:22
| RE: Autolite 3923 question
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Message:
I run 3923's in my 4.7L with zero problems. I'm on my second set now. The factory Champions were gapped anywhere from .045 to .055 when I switched them out, so the morons at the factory evidently didn't bother gapping them correctly. That and when I ordered my truck, I ordered it with a 3.92 LSD and it came with a 3.55 open diff...
Must have been a Monday or Friday built truck...
At least the dealer cut me a check for the 3.92 LSD and I installed the 3.55 LSD instead.
K&N Drop in AF (CAI during summer months)
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
14.52@94.2 MPH at Silver Dollar Raceway
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Mark
Forum Moderator
8/03/2003
18:54:05
| RE: Autolite 3923 question
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Message:
Mine came with a 3.50 open rear and I recently put in a 3.92 LSD. Much much better. My speedo is a little off though.I'm a little worried about the winter snow and how it will react. In light rain it is a whole lot of fun when the cops arent around. shhhh
Now back to Spark plugs. hahah
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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bowhunter
Dodge Dakota
JOIN HERE
8/03/2003
19:07:55
| RE: Autolite 3923 question
IP: Logged
Message:
Thanks Mark, shall definitely look into the MSD ignition
and coil.
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kryp2nite
Dodge Dakota
JOIN HERE
8/04/2003
12:07:56
| RE: Autolite 3923 question
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Message:
anyone ever use a MSD 6AL?
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Dr.Dakota
Dodge Dakota
JOIN HERE
8/04/2003
13:15:11
| RE: Autolite 3923 question
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Message:
Sildak and Smarterthanu are full of crap. 3923's have shown to help starting, acceleration and smoothness in engines that have lower thermostats (i.e. Robertshaw 180). I have just installed my second set in my '01 4.7L. This time I went with platinums only because the shop was out of normal 3923's. I think my gas mileage has gone up from 13 to about 15 mpg...maybe not due to plugs.
What ever happened to Harlow Wilcox? He'll put those two in there place!
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sildak
Dodge Dakota
JOIN HERE
8/04/2003
15:59:11
| RE: Autolite 3923 question
IP: Logged
Message:
did not have 180 in but truck did not feel wright.
still have plugs maybe try them again only takes about 20 minute.it did feel smoother but also slower.
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Mark
Forum Moderator
8/04/2003
16:40:43
| RE: Autolite 3923 question
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Message:
Slidak: what plugs did you have in before that were faster than the autolites?
Kryp2nite: the MSD-6AL is the same as the MSD-6 but has an rpm limiter. It costs substantially more and is not really needed for automatic trannys.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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sildak
Dodge Dakota
JOIN HERE
8/04/2003
16:50:52
| RE: Autolite 3923 question
IP: Logged
Message:
stock champions in my 2003 4.7
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Mark
Forum Moderator
8/04/2003
17:37:24
| RE: Autolite 3923 question
IP: Logged
Message:
Ooh, different engine. I'm not sure how the autolites work in that. Sorry for the confusion.
-Mark Hryckiewicz
1993 Sport RC SB 5.2L Auto
DodgeDakotas.com
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bowhunter
Dodge Dakota
JOIN HERE
8/07/2003
22:39:38
| RE: Autolite 3923 question
IP: Logged
Message:
Mark, Looked into the MSD, and it looks like that's what
I'll be doing next. Did you have to buy a adapter
harness to plug into your factory one, and did you
regap your plugs? How was it to install?
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