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The Terminator
Engine/Tuning
Predator Timing Adjustment
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<blockquote data-quote="Pyro" data-source="post: 656663" data-attributes="member: 6990"><p>I installed the "Diablo Pulley" tune since I am using a 2.80" pulley. It had minor detonation at WOT below 3K rpm so I richened up the fuel by 5% with little effect. I then realized that the whole 15% only equals 1 a/f point. Later today, I will go the full 15% (1 a/f point) just to be safe. I will also retard the timing by a few percent to be safe. I figure that these adjustments are actually making the tune more conservative so I'm not too worried about it. When I was a teen, I used to make much more drastic and uneducated changes to fuel and timing and never blew anything up...of course, I never took to the track AND my old 65 Mustang didn't cost me $35K <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /> . I believe that the Predator was engineered to "Trim" the adjustment so nuts like me and SilverSnake dont blow up the engine. This is why you need a dyno tune to make gross adjustments which is where Diablo and their dealers can make some money...by selling the more drastic changes. I think it's a good move on Diablo's part for liability reasons.</p><p></p><p>PS. SilverSnake, you're not a lawyer are you?</p></blockquote><p></p>
[QUOTE="Pyro, post: 656663, member: 6990"] I installed the "Diablo Pulley" tune since I am using a 2.80" pulley. It had minor detonation at WOT below 3K rpm so I richened up the fuel by 5% with little effect. I then realized that the whole 15% only equals 1 a/f point. Later today, I will go the full 15% (1 a/f point) just to be safe. I will also retard the timing by a few percent to be safe. I figure that these adjustments are actually making the tune more conservative so I'm not too worried about it. When I was a teen, I used to make much more drastic and uneducated changes to fuel and timing and never blew anything up...of course, I never took to the track AND my old 65 Mustang didn't cost me $35K :eek: . I believe that the Predator was engineered to "Trim" the adjustment so nuts like me and SilverSnake dont blow up the engine. This is why you need a dyno tune to make gross adjustments which is where Diablo and their dealers can make some money...by selling the more drastic changes. I think it's a good move on Diablo's part for liability reasons. PS. SilverSnake, you're not a lawyer are you? [/QUOTE]
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