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The Terminator
Terminator Talk
detonation?
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<blockquote data-quote="SpectorV" data-source="post: 9555790" data-attributes="member: 27907"><p>I put on my 2.93 put in a full tank of 93, ran my tune (not a can tune) and everything was fine on the dyno, no hint of detonation audible or on the dyno graph/data. I loaded the updated tune (mine was 10.9 a/f so was rich) both tunes were 23 max timing.</p><p></p><p>Driving later with the new tune I heard it ANY time I would get on it as soon as it went into boost, sounds like marbles bouncing around from the engine. I loaded the tune from the dyno... still did it. I loaded a tune with 2 degrees less timing.. still did it.</p><p></p><p>I waited (no boost at all just normal driving) on the tank of gas to be used up and filled up fresh (also my IC pump died sometime in this process so replaced that) and no more detonation at all. I am going to dyno it again soon to ensure its good then hopefully I am good to go. The dyno soon will tell and I will check the plugs as well to double check.</p><p></p><p>So for me it was bad gas it seems.... will a dyno see detonation where it cant be heard?</p></blockquote><p></p>
[QUOTE="SpectorV, post: 9555790, member: 27907"] I put on my 2.93 put in a full tank of 93, ran my tune (not a can tune) and everything was fine on the dyno, no hint of detonation audible or on the dyno graph/data. I loaded the updated tune (mine was 10.9 a/f so was rich) both tunes were 23 max timing. Driving later with the new tune I heard it ANY time I would get on it as soon as it went into boost, sounds like marbles bouncing around from the engine. I loaded the tune from the dyno... still did it. I loaded a tune with 2 degrees less timing.. still did it. I waited (no boost at all just normal driving) on the tank of gas to be used up and filled up fresh (also my IC pump died sometime in this process so replaced that) and no more detonation at all. I am going to dyno it again soon to ensure its good then hopefully I am good to go. The dyno soon will tell and I will check the plugs as well to double check. So for me it was bad gas it seems.... will a dyno see detonation where it cant be heard? [/QUOTE]
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