Robe, dump the 3923s, I tested them and not impressed after 500-1000 miles.
I had changed them to the Bosch and found them better with the added air
intake and TB. The engine needs more air and blow down detonation style
versus the side to side. I am afraid on the new 5.7 hemi, it will be a
96.00 change for plugs since the heads will have dual plugs.
Anyway, it going cheap, gapped the plugs at .40 and no larger. Check each
one and ensure that the gapping are correct.
I didn't have time to complete the 4417 version of the 4 plus series but I
am hoping someone else try it. It is the same series of heat range as the
3923.
-----Original Message-----
From: owner-dakota-truck@BUFFNET.NET
[mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of robert durbin
Sent: Tuesday, January 16, 2001 7:24 PM
To: dakota-truck@BUFFNET.NET
Subject: DML: Re: RE: 3923's
Importance: High
4.7L
----- Original Message -----
From: "Steven St.Laurent" <saint1958@home.com>
To: <dakota-truck@BUFFNET.NET>
Sent: Tuesday, January 16, 2001 9:58 PM
Subject: DML: RE: 3923's
> What truck are using (3.9, 4.7 or 5.9)?
>
> -----Original Message-----
> From: owner-dakota-truck@BUFFNET.NET
> [mailto:owner-dakota-truck@BUFFNET.NET]On Behalf Of robert durbin
> Sent: Tuesday, January 16, 2001 6:52 PM
> To: dakota-truck@BUFFNET.NET
> Subject: DML: 3923's
> Importance: High
>
>
> o.k....... what's the deal i have a y2k 4.7 L 5spd with 3.92's posi. i've
> been running bosch platinum's #fr8lpx. ran a 9.01best at 71.09mph in 1/8th
> mile. after this afternoon(putting in 3923's with .040 gap) i run a 9.058
> best at71.53 mph in 1/8th. but on the way home cruising 65 mph in 4th gear
i
> TROMP the gas and get detonation. i didn't have that before. the times
we're
> best out of 8 passes, 1 week apart at same outside temp. please explain
this
> maybe i'm not understanding. not hearing or feeling much difference, but
> HATE the detonation.
>
> signed,
> misfiring in j'ville
> ----- Original Message -----
> From: "Wes Weems" <wweems@fix.net>
> To: <dakota-truck@buffnet.net>
> Sent: Thursday, January 11, 2001 9:59 PM
> Subject: DML: Re: 3923's
>
>
> > My understanding is that, thats why they work so well...
> >
> >
> > ----- Original Message -----
> > From: "pcoyle" <pcoyle@frontiernet.net>
> > To: <dakota-truck-digest@buffnet4.buffnet.net>
> > Sent: Thursday, January 11, 2001 12.40 P
> > Subject: DML: 3923's
> >
> >
> > > Hey gonna do some mods to try and better my 10 MPG!
> > > Installed K&N drop in filter,5w-30 Pennzoil Synthetic,45 psi in my
> > > tires.
> > > Now got the 3923's , but I found out they are 3 or 4 heat ranges
cooler
> > > than origional plugs.
> > > Should I put them in anyway? .040 Gap?
> > > Thanks
> > > Great site!
> > >
> > >
> >
>
>
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