C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

spark plug gap ?

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Old Nov 1, 2001 | 01:41 AM
  #1  
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AS84
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Melting Slicks
 
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From: Springfield MO
Default spark plug gap ?

Mine is set at what stock reccomends but that seems awful close. Should I open up a bit more?
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Old Nov 1, 2001 | 02:50 AM
  #2  
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65Z01
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From: SE NY
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Default Re: spark plug gap ? (AS84)

My stock gap was .035"; now that I have the HyperTech coil/cap/rotor and TPIS wires I've opened it to .045".

The correct gap depends on voltage and cylinder pressure. For a stock setup, the stock gap is best.
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Old Nov 1, 2001 | 03:17 AM
  #3  
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From: Baytown Texas
Default Re: spark plug gap ? (65Z01)

I agree. Stick with the stock recommendation until you upgrade the primary ignition system components.
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Old Nov 1, 2001 | 10:20 AM
  #4  
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Kevin McGrade
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Default Re: spark plug gap ? (Red85)

Stock gap on my '92 is .050
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