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Suspension Modifications
Spring rate????
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<blockquote data-quote="HISSMAN" data-source="post: 4729237" data-attributes="member: 9703"><p>I have a huge question, and I can't find the answer anywhere, but it is possible that I may have missed it somewhere. Does anyone know what the spring rate is for the Eibach Pro-kit springs? I know that they are progressive, but I am wanting to compare them to the stock coupe springs.</p><p></p><p></p><p><strong><span style="color: Red"></span></strong></p><p><strong><span style="color: Red">See Post #2</span></strong></p><p></p><p>-Jeff</p><p></p><p>Edited : Thanks Jefe!</p><p></p><p>Rate(lb/in) Front Rear Drop(in.)</p><p>'87 Mustang 2.3L 370 160</p><p>'87-93 Mustang 5.0 425-530 200-300</p><p>'93 Mustang Cobra 425-530 160</p><p>'93 Mustang Cobra R 750-850 240-260</p><p>'94-95 Mustang Cobra 400 160</p><p>'95 SVT Cobra R M-5310-R58 700-850</p><p>M-5560-R58 200-260</p><p>'96-98 Mustang Cobra 400-505 165-265</p><p>'99-04 Mustang V6 OEM 400 190</p><p>'99-04 Mustang GT OEM 450 210</p><p>2000 SVT Cobra R (Eibach) M-5310-R00 800</p><p>M-5560-R00 750 (IRS)</p><p>2001 SVT Cobra OE M 500 470 (IRS)</p><p>2001 Bullitt 1R3Z-5310-CA (front) 600</p><p>1R3Z-5560-AA (rear) 250 0.75 0.75 1R3C-5560-AA ?</p><p>2003 Mach 1 3R3Z-5310-AA (front) 600 3R33-5310-CA, 3R33-5310-AA ?</p><p>3R3Z-5560-AA (rear) 250 0.50 0.50 3R33-5560-BB</p><p>2003 SVT Cobra (Conv.) OEM 500 470 (IRS)</p><p>2003 SVT Cobra Coupe OEM 600 600 (IRS)</p><p>BBK Progressive BBK2510 ?? ?? 1 0.8</p><p>Dech Speeddrive 1000-1200 210-280 1.5"</p><p>Eibach Prokit 425-530 200-300 1.50 1.50</p><p>Eibach ProKit Convertible 460-570 170-310 1.5 1.5</p><p>Eibach ProKit Coupe 460-570 200-250 1.50 1.50</p><p>Eibach Racekit 700-850 200-260</p><p>Eibach Sportline 425-630 140-295 2.00 2.00</p><p>Ford Motorsports B M-5300-B 425-530 200-300 1.50 0.75</p><p>Ford Motorsports C M-5300-C 650 200-300 1.50 0.75</p><p>Ford Motorsports F M-5300-F 460-570 200-250 1.50 1.50</p><p>Ford Motorsports G (Conv.) M-5300-G 460-570 170-310 1.50 1.50</p><p>Ford Motorsports R M-5300-R 700-850 200-260</p><p>Global West 800 160 1 1</p><p>Global West Comp 1000 160 1 1</p><p>Global West Drag 680 160 1 1</p><p>H&R Cobra Convertible Race 750-850 770 (IRS)</p><p>H&R Cobra Coupe 700-760 685 (IRS)</p><p>H&R Cobra Vert Super Sport 700-760 685 (IRS)</p><p>H&R Race 750-850 260-280 1.25 1.00</p><p>H&R Sport 490-575 250-285 1.60 1.50</p><p>H&R Super Race 950-1050 260-300 1.25 1.25</p><p>H&R Super Sport Coupe 51652-77 700-760 275-300 1.75 1.60</p><p>H&R Super Sports Vert 51658-77 700-760? 275-300? 2 1.6</p><p>Intrax 2 2</p><p>Jamex 450-550 170-220 1.5 1.5</p><p>Jamex Sportsprings 425-450 180-225 1.50 1.50</p><p>Kenny Brown 650 800 (IRS) 2 1.25</p><p>MAC Progressives 450-520 200-230</p><p>MRT MRT-301 650 200-250 1.25 1.25</p><p>Progress 580 250-300 1.75 1.75</p><p>Saleen (Eibach ProKit?) 460-570 200-250</p><p>Roush Sport SM01-37X0-V8 1.50 0.80</p><p>Steeda Competition 555-8240 750-850 250 1.25 1.25</p><p>Steeda Full Comp [front] 121-4540-001 850-1050 N/A 1.50 N/A</p><p>Steeda Sport 223-9004 650 200-250 1.25 1.25</p><p>Suspension Tech Street 725 230</p><p>Suspension Tech Comp 850 280</p></blockquote><p></p>
[QUOTE="HISSMAN, post: 4729237, member: 9703"] I have a huge question, and I can't find the answer anywhere, but it is possible that I may have missed it somewhere. Does anyone know what the spring rate is for the Eibach Pro-kit springs? I know that they are progressive, but I am wanting to compare them to the stock coupe springs. [B][COLOR="Red"] See Post #2[/COLOR][/B] -Jeff Edited : Thanks Jefe! Rate(lb/in) Front Rear Drop(in.) '87 Mustang 2.3L 370 160 '87-93 Mustang 5.0 425-530 200-300 '93 Mustang Cobra 425-530 160 '93 Mustang Cobra R 750-850 240-260 '94-95 Mustang Cobra 400 160 '95 SVT Cobra R M-5310-R58 700-850 M-5560-R58 200-260 '96-98 Mustang Cobra 400-505 165-265 '99-04 Mustang V6 OEM 400 190 '99-04 Mustang GT OEM 450 210 2000 SVT Cobra R (Eibach) M-5310-R00 800 M-5560-R00 750 (IRS) 2001 SVT Cobra OE M 500 470 (IRS) 2001 Bullitt 1R3Z-5310-CA (front) 600 1R3Z-5560-AA (rear) 250 0.75 0.75 1R3C-5560-AA ? 2003 Mach 1 3R3Z-5310-AA (front) 600 3R33-5310-CA, 3R33-5310-AA ? 3R3Z-5560-AA (rear) 250 0.50 0.50 3R33-5560-BB 2003 SVT Cobra (Conv.) OEM 500 470 (IRS) 2003 SVT Cobra Coupe OEM 600 600 (IRS) BBK Progressive BBK2510 ?? ?? 1 0.8 Dech Speeddrive 1000-1200 210-280 1.5" Eibach Prokit 425-530 200-300 1.50 1.50 Eibach ProKit Convertible 460-570 170-310 1.5 1.5 Eibach ProKit Coupe 460-570 200-250 1.50 1.50 Eibach Racekit 700-850 200-260 Eibach Sportline 425-630 140-295 2.00 2.00 Ford Motorsports B M-5300-B 425-530 200-300 1.50 0.75 Ford Motorsports C M-5300-C 650 200-300 1.50 0.75 Ford Motorsports F M-5300-F 460-570 200-250 1.50 1.50 Ford Motorsports G (Conv.) M-5300-G 460-570 170-310 1.50 1.50 Ford Motorsports R M-5300-R 700-850 200-260 Global West 800 160 1 1 Global West Comp 1000 160 1 1 Global West Drag 680 160 1 1 H&R Cobra Convertible Race 750-850 770 (IRS) H&R Cobra Coupe 700-760 685 (IRS) H&R Cobra Vert Super Sport 700-760 685 (IRS) H&R Race 750-850 260-280 1.25 1.00 H&R Sport 490-575 250-285 1.60 1.50 H&R Super Race 950-1050 260-300 1.25 1.25 H&R Super Sport Coupe 51652-77 700-760 275-300 1.75 1.60 H&R Super Sports Vert 51658-77 700-760? 275-300? 2 1.6 Intrax 2 2 Jamex 450-550 170-220 1.5 1.5 Jamex Sportsprings 425-450 180-225 1.50 1.50 Kenny Brown 650 800 (IRS) 2 1.25 MAC Progressives 450-520 200-230 MRT MRT-301 650 200-250 1.25 1.25 Progress 580 250-300 1.75 1.75 Saleen (Eibach ProKit?) 460-570 200-250 Roush Sport SM01-37X0-V8 1.50 0.80 Steeda Competition 555-8240 750-850 250 1.25 1.25 Steeda Full Comp [front] 121-4540-001 850-1050 N/A 1.50 N/A Steeda Sport 223-9004 650 200-250 1.25 1.25 Suspension Tech Street 725 230 Suspension Tech Comp 850 280 [/QUOTE]
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