More potential: IRS or 8.8?

tire · 02-28-2007, 02:45 PM

I have been trying to find a mustang suspension tech site that would better help me with this question, but I haven't found one.

Which has the most potential for handling, the Cobra IRS or live axle 8.8 w/ every upgrade possible... from tq arm to panhard bar? And are there any numbers or facts to back this up?

I am repairing a wrecked 00GT and don't want to begin upgrading its existing suspension if an IRS is the way to go.

Thanks.

95 GTS · 02-28-2007, 03:15 PM

Corner-Carvers.com

carrol shelby would tell you the 8.8 live axle

The mustang irs is not really a good irs. Its an irs adapted to use the priginal live axle mounting locations. It needs to be upgraded almust as much.

**TrueBlueVenom** · 02-28-2007, 03:20 PM

werd. IRS, if you are doing auto-x. if you do, skip the '99 cobra IRS (28-spline. weakest of them all), borderline with '01 IRS (31-spline but not as strong as 03/04), and for sure '03/04 IRS (31-spline. strongest halfshafts - built to withstand stock blower - in theory anyway).

'01 IRS - you can upgrade teh halfshafts with the '03/04s. direct fit but they are $250 to350 each side.

all IRS really need IRS bracing, bushings,, etc to take care of wheel hop and twisting. If you are staying with stock GT stuff (i.e. no power adders) most of this stuff may not be required but still advisable.

tire · 02-28-2007, 04:33 PM

i just tried registering on corner-carvers and apparently free email address sites such as hotmail won't do. i suppose i'll find a way around that later.

Nighthawk · 03-01-2007, 07:26 AM

just get the IRS

2k4mk1 · 03-01-2007, 11:25 AM

Personally I rather have a well set up live axle (4 link panhard bar etc) than an IRS. If done properly and set up correctly will handle as well or better than an IRs and be alot more durable

Good reading here man:
Late Model Mustang Suspension Basics

95 GTS · 03-03-2007, 11:05 AM

maybe i didnt make my vote for the solid axle clear. hit up the maxumim motorsports rear grip kit and you will be happy as hell.

02-28-2007, 02:45 PM	#1
tire ka-chow! Join Date: Jun 2003 Location: SoCal Posts: 5,745 Trader Rating: (1)	More potential: IRS or 8.8? I have been trying to find a mustang suspension tech site that would better help me with this question, but I haven't found one. Which has the most potential for handling, the Cobra IRS or live axle 8.8 w/ every upgrade possible... from tq arm to panhard bar? And are there any numbers or facts to back this up? I am repairing a wrecked 00GT and don't want to begin upgrading its existing suspension if an IRS is the way to go. Thanks.

02-28-2007, 03:15 PM	#2
95 GTS Back in the saddle again Join Date: Feb 2006 Location: Texas Posts: 1,710 Trader Rating: (0)	Corner-Carvers.com carrol shelby would tell you the 8.8 live axle The mustang irs is not really a good irs. Its an irs adapted to use the priginal live axle mounting locations. It needs to be upgraded almust as much. __________________ 2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ

03-01-2007, 07:26 AM	#5
Nighthawk technology > displacement Join Date: Jun 2003 Location: San Antonio Posts: 4,669 Trader Rating: (6)	just get the IRS __________________ My Garage

03-01-2007, 11:25 AM	#6
2k4mk1 DONT HATE ME CUZ YOU AINT ME!!!! Join Date: Dec 2003 Location: SanAntonio Posts: 6,376 Trader Rating: (2)	Personally I rather have a well set up live axle (4 link panhard bar etc) than an IRS. If done properly and set up correctly will handle as well or better than an IRs and be alot more durable Good reading here man: Late Model Mustang Suspension Basics __________________ 04 Oxford White MACH1,5 SPD with IUP,K&NAircharger Borla Stingers,SLP Catted X pipe,Tri-ax,SCT Flashtune,Max Mtr Spt 4 bolt adj C/C plates, Drilled/Slotted rotors all 4 corners 281 rwhp on Mustang Dyno,306 rwhp on a Dynojet 94 Black Lightning Daily Driver&85GT FACH1 Project under construction Last edited by 2k4mk1; 03-01-2007 at 11:30 AM.

03-03-2007, 11:05 AM	#7
95 GTS Back in the saddle again Join Date: Feb 2006 Location: Texas Posts: 1,710 Trader Rating: (0)	maybe i didnt make my vote for the solid axle clear. hit up the maxumim motorsports rear grip kit and you will be happy as hell. __________________ 2007 Reflex Silver Wolfsburg Jetta - new hotness 1995 Canary Yellow GTS - Sold 12.81@106.2 w/1.80 60' Boltons/E303 + 3100 lbs + M&H 246 HP/ 290 TQ 12.57 @ 109.21 w/1.76 60' Boltons/GT40Ps/XE270 + 3240 lbs + 555Rs 295 HP / 321 TQ

02-28-2007, 03:20 PM	#3
TrueBlueVenom in a happy place Join Date: Jun 2003 Location: San Antonio Posts: 5,825 Trader Rating: (0)	werd. IRS, if you are doing auto-x. if you do, skip the '99 cobra IRS (28-spline. weakest of them all), borderline with '01 IRS (31-spline but not as strong as 03/04), and for sure '03/04 IRS (31-spline. strongest halfshafts - built to withstand stock blower - in theory anyway). '01 IRS - you can upgrade teh halfshafts with the '03/04s. direct fit but they are $250 to350 each side. all IRS really need IRS bracing, bushings,, etc to take care of wheel hop and twisting. If you are staying with stock GT stuff (i.e. no power adders) most of this stuff may not be required but still advisable.

02-28-2007, 04:33 PM	#4
tire ka-chow! Join Date: Jun 2003 Location: SoCal Posts: 5,745 Trader Rating: (1)	i just tried registering on corner-carvers and apparently free email address sites such as hotmail won't do. i suppose i'll find a way around that later.

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