Aftermaret Heads & Spark Plug Gapping
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Joined: Mar 2003
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From: Toronto Ontario
Aftermarket Heads & Spark Plug Gapping
Ive been playing with my spark plug gap and its seems that the higher I gap my plugs the better color and burning I get from the spark plug.I started with
a .040 gap and Im up to a .053 with a NGK FR5 and a Crane PS2 HEI coil and
MSD 8.5mm wires on a set of ported Edelbrock Performer Heads can
someone tell me why this is because it seems that everyone else is running a tighter gap
[Modified by 91superram, 2:55 AM 9/9/2003]
a .040 gap and Im up to a .053 with a NGK FR5 and a Crane PS2 HEI coil and
MSD 8.5mm wires on a set of ported Edelbrock Performer Heads can
someone tell me why this is because it seems that everyone else is running a tighter gap
[Modified by 91superram, 2:55 AM 9/9/2003]
Team Owner
Joined: Dec 2000
Posts: 90,675
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From: SE NY
Cruise-In II Veteran
Re: Aftermarket Heads & Spark Plug Gapping (91superram)
Well, I run a .045"-.050" gap with cut-back AC Delco plugs, HyperTech cap/coil/rotor and TPIS wires.
A hotter coil with low resistance applies hotter spark and more current to ignite the charge across a greater gap. This provides more complete combustion which means not only more HP but a cleaner burn and better fuel economy.
A hotter coil with low resistance applies hotter spark and more current to ignite the charge across a greater gap. This provides more complete combustion which means not only more HP but a cleaner burn and better fuel economy.
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Re: Aftermarket Heads & Spark Plug Gapping (65Z01)
So, what would you recommend for a MSD 6AL, NGK TR6 and 8 mm Taylor Spiro Pro wires?
I presently have them gapped at 0.038", should I widen the gap for more power and fuel efficiency?
I still haven't cut them back yet. I really don't know what I'm waiting for, lol.
I presently have them gapped at 0.038", should I widen the gap for more power and fuel efficiency?
I still haven't cut them back yet. I really don't know what I'm waiting for, lol.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Aftermarket Heads & Spark Plug Gapping (Southern Comfort)
black_89_vette, I don't know the specifics of that ignition upgrade so I phrased my response that way.
Southern Comfort, you can expect 8-10chp gain, some reduction in emissions and a little better fuel economy from this mod, as described on my site (link in sig. below).
Southern Comfort, you can expect 8-10chp gain, some reduction in emissions and a little better fuel economy from this mod, as described on my site (link in sig. below).
