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The Terminator
Suspension Modifications
600-650 whp what suspension to go with
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<blockquote data-quote="Jimmysidecarr" data-source="post: 12141433" data-attributes="member: 11681"><p>:banana:</p><p></p><p>That front spring rate doesn't sound right. Coil over rates will be different than conventional springs by a lot, normally much lower than a conventional spring with the same wheel rate. Is that a typo and they are actually 250#each?</p><p>250 will be OK for mostly street usage, though it is a bit soft which is ok for street/strip apps.</p><p>Was your coil over kit just fronts or was it a complete Eibach kit? if complete just the run the rears they gave you. Our stock conventional OE SVT springs were 600# each front and rear, so I'm thinking 250 is OK on the rears as well.</p><p></p><p>If you are able to I would call Bruce at full tilt boogie racing tell him you are upgrading suspension on an 04 Terminator coupe, you already have a UPR K and Eibach coil over kit and find out what spring rates he recommends for a mostly street application like yours. With 650 rwhp you will likely be doing some drag racing at some point, he has an optional kit that has a Ford racing rear cover that is a prefered rear cover option. It has also been machined by ftbr to maximize/optimize the pinion angle to reduce high speed vibration. A plus for high speed roll races or mile events.</p><p></p><p>UPR K member is ok since you are not doing HPDE/open track/ road race type events. Just check it once a year for cracks, along with any additional components like lower control arms.</p><p></p><p>It will be pointless to have a car with this much power and potential and then just have average grip tires. I know it doesn't rain much in Kuwait but I would pick an R compound DOT legal type road race tire for your application instead of an R compound drag radial. Toyo R888, Nitto NT01 or other threaded road race type(non- slick street able) tires.</p><p></p><p>A car with this much power deserves appropriate grip.</p></blockquote><p></p>
[QUOTE="Jimmysidecarr, post: 12141433, member: 11681"] :banana: That front spring rate doesn't sound right. Coil over rates will be different than conventional springs by a lot, normally much lower than a conventional spring with the same wheel rate. Is that a typo and they are actually 250#each? 250 will be OK for mostly street usage, though it is a bit soft which is ok for street/strip apps. Was your coil over kit just fronts or was it a complete Eibach kit? if complete just the run the rears they gave you. Our stock conventional OE SVT springs were 600# each front and rear, so I'm thinking 250 is OK on the rears as well. If you are able to I would call Bruce at full tilt boogie racing tell him you are upgrading suspension on an 04 Terminator coupe, you already have a UPR K and Eibach coil over kit and find out what spring rates he recommends for a mostly street application like yours. With 650 rwhp you will likely be doing some drag racing at some point, he has an optional kit that has a Ford racing rear cover that is a prefered rear cover option. It has also been machined by ftbr to maximize/optimize the pinion angle to reduce high speed vibration. A plus for high speed roll races or mile events. UPR K member is ok since you are not doing HPDE/open track/ road race type events. Just check it once a year for cracks, along with any additional components like lower control arms. It will be pointless to have a car with this much power and potential and then just have average grip tires. I know it doesn't rain much in Kuwait but I would pick an R compound DOT legal type road race tire for your application instead of an R compound drag radial. Toyo R888, Nitto NT01 or other threaded road race type(non- slick street able) tires. A car with this much power deserves appropriate grip. [/QUOTE]
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The Terminator
Suspension Modifications
600-650 whp what suspension to go with
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