[s-cars] Spark Plugs - Alternative

[Matt Molyneux]

I just bought five of these plugs too, and will be trying them in a nearly 
stock engine (MTM Stage 1). Pulled a plug yesterday and it too looked sooty. 
We'll see if they improve anything.

On 9/13/05, D Cosby <dccosby at hotmail.com> wrote:
> 
> I've decided to test out the copper tri-electrode Bosch plugs that Javad
> recommends:
> 
> http://www.034efi.com/product_info.php?cPath=26&products_id=184
> 
> If memory serves me right they are F6DTC, which is a temp range hotter 
> than
> stock. This doesn't make sense in my mind, but my old plugs looked a 
> little
> sooty when I removed them (Minhea's chip runs rich) and I was occasionally
> missing under high boost (likely due to the failing, then failed, POS that 
> I
> swapped at the same time). Judging by the look of the old plugs, a range
> hotter could be in order.
> 
> Car runs smooth as silk right now right to the top. It may have been the
> plugs, its also likely the new POS. I'll report back if they fail early, 
> but
> so far its a cheap experiment for the price of one stock plug.
> 
> I have had problems in the past with the stock plugs failing under less 
> than
> 500 miles when I was only running a conserrvative IA chip - including a
> nasty under boost timing pull back that first surfaced through a high 
> speed
> corner on the track... tail wagging anyone?
> 
> Dwayne
> 94 S4: T04e-50 trim @ 1.7 Bar peak, FMIC, water injection, + other
> suspension and brake stuff
> Minneapolis, MN
> 
> 
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