plugs & hp increases

[Gregory Chan]

> >Jeffrey: Another explaination for the HP increases you saw by changing
> >plugs (and I've heard this attributed to Bosch Platinum plugs in '92
> >and later 3 series BMWs) is that with that plug you're getting some
> >detonation and the knock sensor is dialing back the spark advance.
> >I've used Bosch Platinum plugs in my VW Jetta, it really liked them,
> >but it sounds like some cars don't like them for whatever reasons.
> >
>
Japanese cars don't like Bosch plugs. I spent days figuring out an 
erratic idle problem which disappeared when I reverted to NGK.
My buddy was also having the same problem with the same cure.
I heard they work beautifully in German cars though.

gchan at compserv.senecac.on.ca