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im planning to run at 16* using 87 or 89 octane... will that pose a problem?

also... how can i tell if the engine's knocking or pinging? from listening? where will the sound be sourced?

gas is crazy expensive now...
 

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It's not that accurate. It's more of a guessing game if you ask me. "Here's the mark for 15....There's the mark for 20...set it in the middle" Mine set at 17. I put it on the middle or what I thought was the middle.
As far as the knocking is concerned, I haven't heard any knocking but on the same note I don't quite know what a knock sounds like. I've been informed that when you hear it, you will know.
 

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Ryan Walsh, 1997 200sx SE-R w/ ES mounts, JWT s4's, AEBS 4-1, PR CAI, Greddy cat-back, Sportlines/AGX's, Bridgestone re730's, Stillen GTR grill
 
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