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New Edge Cobras
NA build with a IRS what gear and IRS mods?
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<blockquote data-quote="old01cobra" data-source="post: 15512323" data-attributes="member: 141196"><p>I read numerous posts on this and nothing really fits my build. I'm not sure what too expect out of this build in a quarter mile setup. I did a BB/S with 03 heads and it made 460rwhp and 390rwtq. It pulls 400+hp from 5400 too 7400 before its starts to fall Im running out of air again and I'm not cutting up the Fr500 intake anymore. The TQ is 300+ from 2800 rpm all the way too 7400+ when I cut the pull.</p><p></p><p>I need some help on gearing and IRS setup, as well as the K-member stuff. This isn't going to act like a Pullied bolt on cobra or any blower car. I did a highway pull with a friends vmp 2012 coyote and he layed down 540rwhp through a Auto with 3.15 gears and the only time he pulled was when I was shifting. I know this things got some potential as I am still running the 3.27 gears with no suspension work done at all the benefits of a NA build I guess, no parasitic loss and heat soak.</p><p></p><p>So regardless I don't know what too expect in regards too trap speed with this. I know what 4.10s, 4.30s and 4.56s will get me in the MPH at the top of 4th but what will the car actually pull. I just need someone to chime in with some similar experiences. What gear? What k-member and coil over rate? I'm keeping the IRS so what upgrades (spring rate, bushings, halfshafts are really needed)? Can I get buy with 15inchx8's wheels for slicks or would I need 10 inchers etc. 26inch tire 28 etc.</p><p></p><p>All knowledge is welcome and is thanked in advanced........</p></blockquote><p></p>
[QUOTE="old01cobra, post: 15512323, member: 141196"] I read numerous posts on this and nothing really fits my build. I'm not sure what too expect out of this build in a quarter mile setup. I did a BB/S with 03 heads and it made 460rwhp and 390rwtq. It pulls 400+hp from 5400 too 7400 before its starts to fall Im running out of air again and I'm not cutting up the Fr500 intake anymore. The TQ is 300+ from 2800 rpm all the way too 7400+ when I cut the pull. I need some help on gearing and IRS setup, as well as the K-member stuff. This isn't going to act like a Pullied bolt on cobra or any blower car. I did a highway pull with a friends vmp 2012 coyote and he layed down 540rwhp through a Auto with 3.15 gears and the only time he pulled was when I was shifting. I know this things got some potential as I am still running the 3.27 gears with no suspension work done at all the benefits of a NA build I guess, no parasitic loss and heat soak. So regardless I don't know what too expect in regards too trap speed with this. I know what 4.10s, 4.30s and 4.56s will get me in the MPH at the top of 4th but what will the car actually pull. I just need someone to chime in with some similar experiences. What gear? What k-member and coil over rate? I'm keeping the IRS so what upgrades (spring rate, bushings, halfshafts are really needed)? Can I get buy with 15inchx8's wheels for slicks or would I need 10 inchers etc. 26inch tire 28 etc. All knowledge is welcome and is thanked in advanced........ [/QUOTE]
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NA build with a IRS what gear and IRS mods?
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