Bob, and Listers,
For what it's worth, I used NGK plugs and wires while racing my Toyota for years
and never had one problem with them. On RX-7 (or rotary) plugs in general: They
are going to be the coldest plugs you've ever seen. In the NGK numerology,
higher numbers are colder; most street vehicles use a number five or six plug,
and in my 12.2:1 race motor I used number eight plugs. Mazda rotary plugs were
numbered nine or ten. I'm guessing this has to do with the fact that a rotary is
effectively a two-stroke engine and builds a lot of heat all the time, but this
may not be suitable for a street-driven four-stroke engine.
Theo Smit
tsmit@novatel.ca
B382002705
> -----Original Message-----
> From: Bill Martin [SMTP:bmartin@snf.Stanford.EDU]
> Sent: Sunday, May 30, 1999 6:10 PM
> To: Bob Palmer
> Cc: tigers@autox.team.net
> Subject: Re: Whew!!
>
>
>
> Hi there Bob,
>
> I just thought I would pass on what I use in my Tiger for plugs. They are
> NGK WR5VX, monster platinum tip, supposidly Nascar plugs, cost about 6.50
> each. Had the same set in three motors now and they still look new.
> Bill
>
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