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Open Track Racing
Solid Axle vs IRS
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<blockquote data-quote="wheelhopper" data-source="post: 10634950" data-attributes="member: 32430"><p>I have never tracked a straight rear axle car. My thinking would be that you can make a SRA work rather well, cosidering Ford still uses it with great success on their current crop of GT500s and Boss Mustangs. The AIX guys also do just fine with them. </p><p></p><p>I run an IRS in my '90 GT and I love it. It balances the car out nicely and adds 3" of track to the rear of the car. You're not going to get a whole lot of negative camber out of it. The most I have seen is -1.3. That may sound like a lot to Mustang guys, but the BMWs and Miatas run much more than that, and I can tell you on a twisty track TTE Miatas eat up my TTD Mustang. </p><p></p><p>One draw back to adding the IRS is that you will not be able to use the car for AI or CMC, if that is in your future plans. </p><p></p><p>It should not cost you thousands of dollars for the swap. You could probably find a Terminator, drag racer, that would be willing to trade you straight up. If you have both cars together the swap could be completed in a day. </p><p></p><p>Honestly if I was you I would probably install a torque arm/pan hard bar set up and call it a day. The main reason I installed an IRS was because I had it sitting around for a year and needed to add discs to the rear of my stock fox body, in order to track it. Since I already had the IRS, it was cheaper than buying a rear disc conversion.</p></blockquote><p></p>
[QUOTE="wheelhopper, post: 10634950, member: 32430"] I have never tracked a straight rear axle car. My thinking would be that you can make a SRA work rather well, cosidering Ford still uses it with great success on their current crop of GT500s and Boss Mustangs. The AIX guys also do just fine with them. I run an IRS in my '90 GT and I love it. It balances the car out nicely and adds 3" of track to the rear of the car. You're not going to get a whole lot of negative camber out of it. The most I have seen is -1.3. That may sound like a lot to Mustang guys, but the BMWs and Miatas run much more than that, and I can tell you on a twisty track TTE Miatas eat up my TTD Mustang. One draw back to adding the IRS is that you will not be able to use the car for AI or CMC, if that is in your future plans. It should not cost you thousands of dollars for the swap. You could probably find a Terminator, drag racer, that would be willing to trade you straight up. If you have both cars together the swap could be completed in a day. Honestly if I was you I would probably install a torque arm/pan hard bar set up and call it a day. The main reason I installed an IRS was because I had it sitting around for a year and needed to add discs to the rear of my stock fox body, in order to track it. Since I already had the IRS, it was cheaper than buying a rear disc conversion. [/QUOTE]
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