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#1 | |
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Registered User
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Spark plugs
Hi everybody,
What sparkplugs should I use on my 94 grand Cherokee. For better performance. 5.2 L v8
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#2 | |
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Registered User
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Quote:
Spark plugs DO NOT improve performance. Old, worn out, or incorrect heat range or incorrect gap can HURT performance, but plugs of the proper gap and heat range will all work about the same. Use factory recommended, and then buy according to quality. I HAte Bosch, the ends unscrew. I like NGK and Champion.
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97 TJ Sport - 4.0/HP D30 w ARB/8.8 w LS/4.88s; 35s and flat fenders on 2.5 lift 84 CJ7; frame off restoration in progress. The technical advice you get from me here is worth exactly what you paid me for it. Warranty issues will be reimbursed at double what you paid me for the advice. |
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#3 |
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Registered User
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Yeah I'm new to jeeps. Just bought mine and I want to throw in new ones.Off topic. Does the exhaust system (flowmaster) help performances mpg?
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#4 |
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Living dead mod
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Some plug designs and materials do improve performance. Its been dyno proven time and again. That said, champion copper core truck plugs are your best option for stock.
Read up on indexing, get a set of indexing washers from summit and point your plug gap at the exhaust port. Good for some efficiency increase.
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'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes. |
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#5 |
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Registered User
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copper core Champions.....if you're REALLY lucky Champion Truck Plugs {think I got some of last ones made
} |
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#6 | |
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Registered User
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When in doubt, cut it out!! |
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#7 | |
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Registered User
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Quote:
__________________
When in doubt, cut it out!! |
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#8 | ||
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Registered User
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Quote:
Quote:
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