The best plugs I ever used in my WBX over the last 8 years are Bosch
Platinum +4.  Search for model 4477.  Hershey der Wunderboxer  likes
them better than plain plugs..

On 4/7/09, Michael Tevis <michaeltevis@hotmail.com> wrote:
> I'm doing a tuneup on an 85 1.9L engine that had about as much power as any
> 2.1L i've driven. it's a 1.9L case but might have bigger pistons or
> something. anyway, i took the plugs out and they are Bosch W8DC. most
> vendors sell the W7CC or WR7CC. bus-boys.com shows a W7DTC for the 85 only.
> No other 85 I've worked on has had any bosch plug other than a W7CC. does
> anyone know why bus-boys and the previous owner of this 85 feel that the
> 85's need the W_D_ _ plugs that have a less shielded spark thats also a
> little further into the cylinder? the threads arent longer, just how far the
> electrodes are from the threads.
>
> www.boschautoparts.com/NR/rdonlyres/C77B3446-232B-4AEC-AFA9-AD05F2A0A2AD/0/DesignationCodes.pdf
>

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Chris S.
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