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SVT Shelby GT500
2.9l whipple install. questions
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<blockquote data-quote="19COBRA93" data-source="post: 14209357" data-attributes="member: 10462"><p>I don't know who you talked to, but they don't know their head from their ass. The myth that an aux idler causes undue stress on the snout is just that, a myth. </p><p></p><p>The aux idler doesn't push, pull, or anything else. Even if it did, the bearing in the snout is round, which means the pull from the belt can come from any direction with no ill effect. In factory trim, the belt is actually pulling towards the passenger side. With the aux idler, it doesn't change the direction of the belt, and doesn't effect how it pulls on the snout. It simply takes up slack in the belt (exactly like the 90mm idler), and adds a bit more wrap to the feed side of the SC pulley. </p><p></p><p>The aux idler is placed on the "feed" side of the SC pulley. The "Pull" from the belt by the crank comes from the drivers side, which is unchanged. The angle of pull by the belt is virtually unchanged. Anyone who says otherwise is talking out of their ass. The only thing that can effect the stress on a snout bearing is the belt tension itself, not the angle that the belt is pulling on the snout. As long as the tensioner is within it's normal operating range, the stress on the snout is NO DIFFERENT than it would be from Ford. </p><p></p><p>Here is a clear pic of how the factory belt is routed. As you can see, it's already being "pulled" at an angle:</p><p></p><p>[ATTACH=full]579944[/ATTACH]</p><p></p><p></p><p>Here is my 2.9L without the aux idler:</p><p></p><p>[ATTACH=full]579945[/ATTACH]</p><p></p><p>Here is an aux idler installed. Notice the angle of the belt. It's the same. </p><p></p><p>[ATTACH=full]579946[/ATTACH]</p><p></p><p></p><p></p><p></p><p>Anyway, this isn't meant to be directed at you, I'm just trying to put this myth to rest.</p></blockquote><p></p>
[QUOTE="19COBRA93, post: 14209357, member: 10462"] I don't know who you talked to, but they don't know their head from their ass. The myth that an aux idler causes undue stress on the snout is just that, a myth. The aux idler doesn't push, pull, or anything else. Even if it did, the bearing in the snout is round, which means the pull from the belt can come from any direction with no ill effect. In factory trim, the belt is actually pulling towards the passenger side. With the aux idler, it doesn't change the direction of the belt, and doesn't effect how it pulls on the snout. It simply takes up slack in the belt (exactly like the 90mm idler), and adds a bit more wrap to the feed side of the SC pulley. The aux idler is placed on the "feed" side of the SC pulley. The "Pull" from the belt by the crank comes from the drivers side, which is unchanged. The angle of pull by the belt is virtually unchanged. Anyone who says otherwise is talking out of their ass. The only thing that can effect the stress on a snout bearing is the belt tension itself, not the angle that the belt is pulling on the snout. As long as the tensioner is within it's normal operating range, the stress on the snout is NO DIFFERENT than it would be from Ford. Here is a clear pic of how the factory belt is routed. As you can see, it's already being "pulled" at an angle: [ATTACH=full]579944[/ATTACH] Here is my 2.9L without the aux idler: [ATTACH=full]579945[/ATTACH] Here is an aux idler installed. Notice the angle of the belt. It's the same. [ATTACH=full]579946[/ATTACH] Anyway, this isn't meant to be directed at you, I'm just trying to put this myth to rest. [/QUOTE]
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2.9l whipple install. questions
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