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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Suspension Discussion and Modification
Eibach Pro-lift springs installed with pics and comments
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<blockquote data-quote="OffroadAlliance.com" data-source="post: 1483184" data-attributes="member: 17492"><p>It’s a bit more than that. The biggest difference is progressive coils versus non. </p><p></p><p><u>Coil Springs</u> </p><p></p><p></p><p>Eibach not progressive</p><p></p><p>544lb/inch coil rate </p><p></p><p></p><p>Geiser progressive</p><p></p><p>700lb/inch coil rate</p><p></p><p></p><p>OEM</p><p></p><p>530lb/in coil rate </p><p></p><p></p><p></p><p>Eibach Springs = These have a linear spring rate. Meaning that the spring rate is the same throughout the entire compression cycle. </p><p></p><p></p><p>Geiser Springs = These are a progressive spring rate. This means that the physical separation between the individual coils will vary. The initial coils are more closely wound together at the top and bottom whereby the middle coils are more spread apart. This offers varying spring rates as the coil spring compresses throughout the entire cycle. </p><p></p><p></p><p></p><p>Evenly spaced coil springs such as the Eibach, compress with the same rate at the same time offering a linear line of compression. Progressive coils have varying coil distances between each coil. These varying distance coils are designed to handle the impact of varying terrains. Those first few and last few more tightly wound coils designed primarily to handle the urban jungle (i.e. uneven pavement or that pothole). The middle more openly spaced coils are set at a different spring rate than those more closely compressed together and are intended to assist with off-roading where there’s likely a much greater range of travel for the suspension to move. </p><p></p><p>Hope this helps. And for anyone looking, we’ve got plenty of each in stock.</p></blockquote><p></p>
[QUOTE="OffroadAlliance.com, post: 1483184, member: 17492"] It’s a bit more than that. The biggest difference is progressive coils versus non. [U]Coil Springs[/U] Eibach not progressive 544lb/inch coil rate Geiser progressive 700lb/inch coil rate OEM 530lb/in coil rate Eibach Springs = These have a linear spring rate. Meaning that the spring rate is the same throughout the entire compression cycle. Geiser Springs = These are a progressive spring rate. This means that the physical separation between the individual coils will vary. The initial coils are more closely wound together at the top and bottom whereby the middle coils are more spread apart. This offers varying spring rates as the coil spring compresses throughout the entire cycle. Evenly spaced coil springs such as the Eibach, compress with the same rate at the same time offering a linear line of compression. Progressive coils have varying coil distances between each coil. These varying distance coils are designed to handle the impact of varying terrains. Those first few and last few more tightly wound coils designed primarily to handle the urban jungle (i.e. uneven pavement or that pothole). The middle more openly spaced coils are set at a different spring rate than those more closely compressed together and are intended to assist with off-roading where there’s likely a much greater range of travel for the suspension to move. Hope this helps. And for anyone looking, we’ve got plenty of each in stock. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford Raptor Suspension Discussion and Modification
Eibach Pro-lift springs installed with pics and comments
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