Steve -
My first spark plug change, i put in Bosch coppers. I checked them after
like 9k miles and they were well on their way to fouled. So i put in the
Platinum +4's and i gained 26 horse (average) on my g-tech. Don't get me
wrong, they're not that much better, but here's an explanation:
0-15k miles = stock plugs = max of 230 RWHP (average around 214)
15-24k miles = Bosch copper = max of 224 RWHP (consistantly 198 RWHP after
the first 1k or so)
24-25k miles = Bosch Platinum +4 = first run i got 226 RWHP
I expect i could get that 230 or higher again with these plugs. The main
difference is in smoothness and responsiveness... both greatly improved.
Again, before i get flamed or something, let me reiterate that i'm not
saying the platinums are good for 26 horse over copper. Plus i haven't even
tried the autolites.
Sean Bruckman
----- Original Message -----
From: "Steven T. Ekstrand" <cyberlaw@earthlink.net>
To: <dakota-truck@buffnet.net>
Sent: Friday, October 20, 2000 2:11 AM
Subject: DML: Re: Re: 3923's in a 4.7L-HELP!!! Platinum vs. Copper
> Bernd-
>
> I'm not disagreeing with you. That's what has me worked up. I said in my
> post straight up I understand the issue with multiple spark and CD style
Hi
> output ignitions. Been there done that. I've been using the MSD race
> units since the early 80's. I ran hand me down units in my street toys.
I
> would never use platinum in my race cars.
>
> BUT!!! I'm not going to be running an MSD in a 4.7L anytime during my
> lease term....
>
> In a stock, lo po, low voltage, totally crap 4.7 ignition system what is
> the best thing to do? The Dodge Magazine article specifically says the
> greater conductivity of DP's allow Chrysler to run lower voltage to
> increase plug life. Now if I could modify the ignition, and I would love
> to, I would run copper.
>
> TRUST ME! This stock system ain't going knock the Platinum off a KMart
> blue light special DP plug. A tank of good premium gas might resist
> ignition from that system!
>
> -STE
>
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