Very good advise...of course it also applies to everything you'd just recommended as well. 
Wires and Plugs
Thread Starter
Burning Brakes
Joined: Jan 2004
Posts: 908
Likes: 1
From: Las Vegas NV
Wires and Plugs
What will some of the "fancy" spark plug wires really do for my performance. Any one done a test on a dyno or anything with and without them? What's wrong with stock plugs and wires? 
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
Aftermarket wires do sometimes look prettier though.
Again, nothing.
The stock wires are fine and remain fine well into the ultra high powered/modified ranges. The stock AC Delco platinum plugs are ok as well but many have found better overall performance/fewer misfires with a good set of copper plugs (ie: NGK TR55) in most naturally aspirated applications.
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
put them on and try them yourself, stock is 7mm wire. example MSD are 8.5 mm
and will allow more current to pass with less resistance and allows a wider gap as this is where the difference is. Example stock gap .040
I run NGK's tr-55 at .059 out of the box . Now S/c'd
I run tr-6 at the .039 out of the box. With-out them I run stock gaps. Have done this on 3 Ls motors and like the result everytime! They make them for a reason.
Last edited by 3 Z06ZR1; Nov 6, 2008 at 12:39 AM.
Melting Slicks
Joined: May 2008
Posts: 2,802
Likes: 38
From: A galaxy far, far away...
St. Jude Donor '12 thru '26
I have come to the conclusion that if I were to put some meaty wires on my LS3 I'd go with the Callaway wires. For a reasonable price, they seem to be a huge improvement over the stock wires. 
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