[Healeys] Big Healey Race Engine Question

[Chris Dimmock [Healey]]

Hi Fred

I run NGK EGV racing plugs

Heat range depends on the cars useage, temperature, etc - but usually
heatrange is 7 - 9

i.e NGK B8 EGV; NGK B85EGV etc

http://www.ngksparkplugs.com/docs/tech/partnumberkey.pdf

Mine is lower compression than yours, cast iron head, triple 45dcoe; 300
degree cam etc see http://www.myaustinhealey.com/dyno_sheet.html for specs.

These plugs have been perfect for me.

Best

Chris

On Thu, Jul 22, 2010 at 1:15 PM, Fred Crowley <
fredcrowley at teamhealeytexas.com> wrote:

> Folks,
>
> This is directed primarily to those who have a race prepped engine in their
> car.
>
> I am looking for a replacement for the type of spark plugs that I have been
> using for quite a while. The plugs I've been using are Splitfires SF6C.
> These
> plugs are now out of production. A bit disappointing as this particular
> model
> seems to be the correct heat range and have been working well.
>
> My engine (2963cc) runs approximately 12:1 compression, 240# cranking
> pressure, 300 degree cam,  cast iron head, and uses 110 Octane race fuel.
>
> Any suggestions for a replacement plug for these engine conditions?
>
> Cheers,
>
> Fred Crowley
> Team Healey Texas
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