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spark plug gap advise from MSD , to follow?

Started by CB, June 26, 2010, 08:40:07 AM

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CB

MSD:
Spark Plugs: Choosing the correct spark plug design and heat range is important when
trying to get the best performance possible. Since there are so many engine combinations
and manufacturers, MSD does not recommend which plug or gap is exactly right for your
application. It is recommended to follow the engine builder or manufacturer's specification for spark
plugs. With that, you can then experiment with the plug gap to obtain the best performance.
The gap of the plugs can be opened in 0.005" increments, then tested until the best
performance is obtained. MSD judges the plug gap by compression and components:

These examples are just staring
points to get you going in the right
direction.Every application is
different and should be tested and
tuned.


Compression Spark Plug Gap
Up to 10.5:1: 0.050" - 0.060"
10.5:1 - 13.0:1: 0.040" - 0.050"
Above 13.0:1: 0.035" - 0.045"

I got a stock 383 4bll engine, running the MSD 6AL box.
So where should I set the gap? 0.045"?
Thanks guys
CB
1968 Dodge Coronet 500

Ghoste


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CB

Sorry, my bad, I did a search but didn't spend too much time reading I guess  :slap:

I'll set them at 45 and see what results I get.

Thanks!
CB
1968 Dodge Coronet 500