Re: Drag Racers' trick - Plug Indexing

[ChrisBourk@xxxxxxx]

In a message dated 98-11-26 05:59:42 EST, you write:

<< 
 Date: Thu, 26 Nov 1998 10:33:01 -0000
 From: "Paul Drawmer" <paul@domain.elided>
 Subject: Drag Racers' trick - Plug Indexing
 
 I only know a little about the Otto cycle;
 "Suck, Squeeze, Bang, Blow"
 
 But surely the inlet valve is open waaaay before the plug fires, and with
 good swirl of the inlet charge to cover the ignition area before the spark
 happens, how can the orientation of the plug make any difference?
 
 Please enlighten me.
 
 Paul Drawmer
 BMWCC(GB); BMWCCA
 '89 Z1; '94 325iSE
 paul@domain.elided >>

Paul,

The trick is to index them to the EXHAUST valve not the intake valve as was
posted.  
The theory is that it compliments the flame front as it exits via the exhaust
port.

Christopher

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