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Mach 1
IRS vs SRA for the corner carver/street car...help me pick
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<blockquote data-quote="vertigyn" data-source="post: 10370659" data-attributes="member: 63258"><p>I know this is old...but figured I would give my .02. I've had an '03 IRS in my car for a while now. I think I swapped it in around 10k miles and I now have 35k or so. The IRS had 70k on it when I swapped for it...</p><p></p><p>I don't know if I have just been unlucky or what. I probably should have found an IRS with less mileage or something rather than going with a local friends IRS.</p><p></p><p>Immediately upon getting the IRS, I slapped the FTBR bushing kit in it before it even went in the car. The IRS came with a BF brace and was stock aside from the bushings I installed. Everything was fine and dandy when the car was N/A making 320 at the wheels and I was happy other than the new "cobra clunk" sound the IRS made. The IRS seemed more predictable, handled turns better, and dealt with bumps in the road better. Good deal.</p><p></p><p>Then, at 15k miles, things changed. I added the 2.1 KB kit and bumped my RWHP from 320 to 475. My first time at the strip a 1/2 shaft broke on my first run - snapped hitting 2nd gear. While that was being replaced with DSS Level 5 shafts, I also replaced the differential with a TrueTrack. I haven't been to the strip since this event - stick to street beating and autoX events on R compounds.</p><p></p><p>Shortly after the level 5's went in, a hub cracked and broke the spindle it was in. Apparently level 5 half shafts are for DRAG ONLY according to DSS. They took the shafts back and put stock hubs on them that are thicker than their L5 hubs...too bad it took out a $500+ spindle in the process. </p><p></p><p>Shortly after this the mounting ears on the front of the pumpkin cracked where (near the DS and where it mounts to the subframe). Had to buy a new housing for $400.</p><p></p><p>This housing lasted about 6 months before it cracked the ears as well. This time, replaced it with a cast iron housing from a Thunderbird. Hopefully it will stay in one piece this time (this repair is currently in progress).</p><p></p><p>My major complaint with the IRS is, that every time it breaks - it's at least $1,000. Half shafts are expensive as hell, the pumpkin and associated labor to remove it is ridiculous, I still haven't been able to rid myself of the "Cobra Clunk" (maybe when I get it back this time it will be gone), and it just doesn't seem all that durable. </p><p></p><p>If I had stuck with my stick axle, I could have seriously built it a few times and got it to handle damn well with the amount of money I have in my IRS. I regret my swap simply because of that. </p><p></p><p>A lot of people love the swap...I think maybe I just got a bad IRS or something. If the IRS breaks again after this...I'll seriously be looking at parting it out and getting another SRA.</p></blockquote><p></p>
[QUOTE="vertigyn, post: 10370659, member: 63258"] I know this is old...but figured I would give my .02. I've had an '03 IRS in my car for a while now. I think I swapped it in around 10k miles and I now have 35k or so. The IRS had 70k on it when I swapped for it... I don't know if I have just been unlucky or what. I probably should have found an IRS with less mileage or something rather than going with a local friends IRS. Immediately upon getting the IRS, I slapped the FTBR bushing kit in it before it even went in the car. The IRS came with a BF brace and was stock aside from the bushings I installed. Everything was fine and dandy when the car was N/A making 320 at the wheels and I was happy other than the new "cobra clunk" sound the IRS made. The IRS seemed more predictable, handled turns better, and dealt with bumps in the road better. Good deal. Then, at 15k miles, things changed. I added the 2.1 KB kit and bumped my RWHP from 320 to 475. My first time at the strip a 1/2 shaft broke on my first run - snapped hitting 2nd gear. While that was being replaced with DSS Level 5 shafts, I also replaced the differential with a TrueTrack. I haven't been to the strip since this event - stick to street beating and autoX events on R compounds. Shortly after the level 5's went in, a hub cracked and broke the spindle it was in. Apparently level 5 half shafts are for DRAG ONLY according to DSS. They took the shafts back and put stock hubs on them that are thicker than their L5 hubs...too bad it took out a $500+ spindle in the process. Shortly after this the mounting ears on the front of the pumpkin cracked where (near the DS and where it mounts to the subframe). Had to buy a new housing for $400. This housing lasted about 6 months before it cracked the ears as well. This time, replaced it with a cast iron housing from a Thunderbird. Hopefully it will stay in one piece this time (this repair is currently in progress). My major complaint with the IRS is, that every time it breaks - it's at least $1,000. Half shafts are expensive as hell, the pumpkin and associated labor to remove it is ridiculous, I still haven't been able to rid myself of the "Cobra Clunk" (maybe when I get it back this time it will be gone), and it just doesn't seem all that durable. If I had stuck with my stick axle, I could have seriously built it a few times and got it to handle damn well with the amount of money I have in my IRS. I regret my swap simply because of that. A lot of people love the swap...I think maybe I just got a bad IRS or something. If the IRS breaks again after this...I'll seriously be looking at parting it out and getting another SRA. [/QUOTE]
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IRS vs SRA for the corner carver/street car...help me pick
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