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Thread: Spark plugs!!
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Kick
Hauling
Posts: 149
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posted August 02, 2003 02:20 AM |
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Spark plugs!!
What would also be some good spark plugs to use on my 74 rotary pickup?
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1972 Rx2 - no enigne or trans
1974 Repu - runs and drives
1976 Rx4 - no engine or trans (klaus42 old 4)
1977 Repu - Parts
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wankel_dreams
Redlining
Posts: 293
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posted August 02, 2003 09:17 AM |
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I have Stock '77 13B. Only mods are electronic ignition and Racing beat air cleaner with K&N 4" filter I use NGK plugs, stock spec.
Racing Beat's website has a pretty good explaination of the different kinds of NGK plugs and there applications. Its in the ignition section
after reading that i knew more about plugs than the employees at one my local auto parts stores. I learned to just ask for the specific plug you want. Don't ask if they have a "colder" or "hotter" plug unless you want to hear "huh"
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74 wankel panther
77 REPU
79 rx7
89 Vert
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repujeff
Revvin Up
Posts: 71
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posted August 02, 2003 07:29 PM |
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Plugs
Again what Wankel Dreams says. The Mazda dealer where the truck was purchased in 1977 gave it a complete tuneup-put all NGK parts including the plugs. The rotary tech. there said it was the best bang for the buck.
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roaddancer
Hauling
Posts: 127
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posted August 02, 2003 08:38 PM |
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All the early rotaries responded well to an upgrade to the three prong RX7 plug. It allowed them to run leaded fuel without fouling. Of course,, you can't buy that anymore, so no money can be saved, but I bet some HP gain is accomplished. Every bit helps.
And the NGKs are the ticket, no contest.
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Klaus43
Rotorhead
Posts: 1259
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posted August 04, 2003 11:29 AM |
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NGK or nothing!
My personal opinion/preference is for the four side wire versions over the two or three. Owing to the directional nature of the charge movement/combustion zone/rapid ignition requirements of the rotary, more is better... though you'll find a pretty amazing range of powerband differences between the various types of plugs, if you experiment...(!) I've been running the zero-side-wire BUR series plug for a long time now on my j-spec 4port 13B, and I love 'em! Work great, with excellent durability... they're the ones that look like a solid cylinder, with a cross cut into the end, and the center electrode deep inside...
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brad
Rotorhead
Posts: 1672
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posted August 04, 2003 07:19 PM |
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NGK BR8EQ14
Are what Mazdatrix and RB reccomend. Nice all around good 4 electrode plug.
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-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge
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