twin plugs

[Robert Fridman]

> >
> >Does anyone have any references to any work dealing with multiple
> >spark plugs per cylinder?
> >
>   To my knowledge, all of the rotary powered RX-7s use two plugs.  I believe
> they are different sizes and are fired w/ a slight phase shift between them
> (although you probably shouldn't quote me on that...)  Dont know how much of
> that is revelant to pistons.
> 
> SMD

Staggering the sparks on a hemy  headed engine like the bmw boxer seems to
have a positive effect on power.  I have no idea why this would be the
case.


	RF.

-------------------------------------------------------------------------
83 R100			DoD 749			Robert Fridman
84 320i						fridman at cpsc.ucalgary.ca