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The Terminator
Suspension Modifications
Coilover Spring Rate question (IRS)
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<blockquote data-quote="ac427cobra" data-source="post: 11141447" data-attributes="member: 6247"><p>The front and rear spring rates are different for a couple of reasons. Your engine is up front and with a Terminator your F/R weight distribution is 57/43. The leverage points for the front and rear are not identical that is also why the rates are not similar. </p><p></p><p>If you have any photos of your car on track I bet you'd see quite a lean in the front. That's not a bad thing unless you're a Track Ho looking for maximum handling and speed at the track. </p><p></p><p>Your car feels incredibly balanced because it's much better than it was on stock suspension and you feel a huge improvement. </p><p></p><p></p><p></p><p>250 in the front is fairly close to what you had in the stock confuguration. You still have a nice street ride along with adjustability. Hopefully you don't have a 500 in the rear with those 250's up front? :dw:</p><p></p><p>I would not change springs going back and forth to the track. With coil-overs, you should be corner balancing the car any time changes are made. That seems like a lot of work to me!? Get your car set-up so it's not past the breaking point (ride comfort) on the street yet still can hold its own at the track. </p><p></p><p></p><p></p><p>MM has always recommended a bit higher rate spring for the rear that I have not always agreed with. I like the stiff spring in the front with a slightly lighter spring in the rear. This makes the car a little more loose, and I like a loose car. Particularly if it has an IRS. IMHO loose is fast. And I'm not the only one who says that! :-D</p><p></p><p>Everyone has a different driving style and a different comfort level as to what feels good to them. I love how the IRS in my Cobra R handles. I'm <strong>VERY</strong> comfortable in it. I can drive it right on the ragged edge and even over the edge by quite a bit with complete confidence. I wish I could say that for my new Boss. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite3" alt=":(" title="Frown :(" loading="lazy" data-shortname=":(" /> I'm not comfortable in the Boss yet. It feels tight and when it does give, it's not the same kind of give I'm used to with an IRS. </p><p></p><p></p><p>:thumbsup::coolman::beer:</p></blockquote><p></p>
[QUOTE="ac427cobra, post: 11141447, member: 6247"] The front and rear spring rates are different for a couple of reasons. Your engine is up front and with a Terminator your F/R weight distribution is 57/43. The leverage points for the front and rear are not identical that is also why the rates are not similar. If you have any photos of your car on track I bet you'd see quite a lean in the front. That's not a bad thing unless you're a Track Ho looking for maximum handling and speed at the track. Your car feels incredibly balanced because it's much better than it was on stock suspension and you feel a huge improvement. 250 in the front is fairly close to what you had in the stock confuguration. You still have a nice street ride along with adjustability. Hopefully you don't have a 500 in the rear with those 250's up front? :dw: I would not change springs going back and forth to the track. With coil-overs, you should be corner balancing the car any time changes are made. That seems like a lot of work to me!? Get your car set-up so it's not past the breaking point (ride comfort) on the street yet still can hold its own at the track. MM has always recommended a bit higher rate spring for the rear that I have not always agreed with. I like the stiff spring in the front with a slightly lighter spring in the rear. This makes the car a little more loose, and I like a loose car. Particularly if it has an IRS. IMHO loose is fast. And I'm not the only one who says that! :-D Everyone has a different driving style and a different comfort level as to what feels good to them. I love how the IRS in my Cobra R handles. I'm [B]VERY[/B] comfortable in it. I can drive it right on the ragged edge and even over the edge by quite a bit with complete confidence. I wish I could say that for my new Boss. :( I'm not comfortable in the Boss yet. It feels tight and when it does give, it's not the same kind of give I'm used to with an IRS. :thumbsup::coolman::beer: [/QUOTE]
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