Kinda Was ==> Re: [s-cars] spark plugs, what are they and where to find them...

[Bruce]

Rod,

Could not have said it better myself (nor will I try).

I'm surprised there are no recommendations on high-energy ignition systems
and better plugs. Seems like with the boost we're running, it would be an
area for exploration.

We have access to an AWD dyno in MD here on the east coast, which they'll
rent out to a group for the hour, 1/2 day, or day. I'd love to get a few
"packages" together and A/B test some to see if there are improvements.

Bruce

> Dave,
> I certainly dot dispute your view on this matter, but I have often
wondered
> why. In other cars I have seen as much as 60hp on a stock v8 by doing
nothing
> more than finding the right heat range and getting the carb or FI tuned.
Most
> of us dot have the luxury with playing around with the FI, but common
tuning
> practice is to reduce the heat range as cylinder pressure climbs to keep a
> more timely and even burn. The fact that the 2 most different
configurations
> in the S$ hi-po world (MTM 1+ and full blown/upgraded RS2 engines) use the
> same plug despite much greater flow and boost levels in the rs2 and a
> difference of at least 100hp?? I dot understand why there are not more
plugs
> in use for this car. While the boost levels continue to surprise some very
> knowledgeable people the engine cant be that hard on the newer state of
the
> art plugs. I have hints that my new 'package' from Tommy A. may have plugs
of
> a different heat range and with a max overboost of 1.9bar  I would hope
they
> were a bit cooler. Has anyone ever played around with some of the other
> plugs? Is there some special way Bosch regulates the heat range in these
> plugs??
> Rod
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