06-03-2009, 02:35 PM
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#9 (permalink)
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Base Member
Join Date: Jan 2009
Location: Vine Grove, KY
Posts: 89
Drives: 2009 370Z
Rep Power: 18
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Quote:
Originally Posted by g96818
 the cylinder volume does not change when you rev past 4k, the compression is the same at 1k or at 8k. it may not be as detrimental since it's not exploding 8k times per min, but it's still exploding prior to the piston reaching TDC which damages the piston, piston rings, cylinder walls, valves, spark plugs, injectors, if it's in there, it's damaged.
don't put regular in your car unless u have some kind of piggy back or stand alone ecu which will redo the timing. |
Your volume statement is correct, but your conclusion about pre-detonation is incorrect. If the ECU detects pre-detonation, it will retard the timing to alleviate the knock. It's very unlikely to suffer any damage from low octane gas, your performance will just suffer.
Last edited by rbratton; 10-22-2009 at 03:39 PM.
Reason: fixed typo
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