IRS into SN95 swap

2

2xturbo

Founding Member

Jun 16, 2002

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Jun 16, 2004

#1

• Jun 16, 2004

• #1

Picked up a 2001 Cobra IRS module (no springs or shocks but otherwise complete). Anybody done a swap into a SN95 Mustang? I believe it will fit directly, with the addition of a couple of weld studs or tabs. Any other little things to look for? Will the ABS work OK or will I need to change the tone rings to the old ones? What about driveshaft length?

Any help will be appreciated.

2x

 

2

2xturbo

Founding Member

Jun 16, 2002

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Jun 16, 2004

#2

• Jun 16, 2004

• #2

Also: I've read about wheel hop problems with all the Mustang IRS factory setups. In the past (on other vehicles) this has been mainly related to a) mismatched or compromised spring and damping rates and b) relatively large range of motion of the articulation members off the desired rotation axis. The fix is to use purpose-designed coilover shocks mounted between the upper and lower a-arms, and do away with rubber bushings in favor of bearings and rod ends, but ride and durability suffer immensely. Question: does anybody offer a rear coilover conversion for IRS Cobras?

 

B

baglock1

The Bartender

Founding Member

Aug 25, 2001

6,612

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78

Space Coast, FL

Jun 16, 2004

#3

• Jun 16, 2004

• #3

The IRS bolts right in to the existing brackets/frame mounts. As for coilovers, maximum motorsports makes them for the IRS.

 

DougNuts

Founding Member

Jul 11, 2000

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Georgetown Ky

Jun 16, 2004

#4

• Jun 16, 2004

• #4

IRS into a Fox here.

www.maximummotorsports.com for coil-over kit.

I believe Kenny Brown makes some decent bushings for the IRS which is a large part of the hop problem.

I recommend doing a SEARCH on www.corner-carvers.com to research the swap and traction hop solutions. Your questions have been answered before on that site. If you do feel the need to ask a question over there, please read the Wiki.

 

SuperStang83

Founding Member

Mar 21, 2001

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Boyertown, Pa

Jun 16, 2004

#5

• Jun 16, 2004

• #5

I don't have any answers for you, but htat is a sweet mod!

 

Rootus

Officially Addicted

Feb 8, 2003

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Portland, Oregon

Jun 16, 2004

#6

• Jun 16, 2004

• #6

You might PM toddzilla, he just recently swapped an '03 Cobra IRS into his '95 Cobra, he might have some tips.

 

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2xturbo

Founding Member

Jun 16, 2002

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Jun 16, 2004

#7

• Jun 16, 2004

• #7

Thanks for all the replies, y'all. Good info. Looks like it won't be as hard as I thought, and there's parts out there to address the issues I'll likely encounter. This is why I stop in here...

 

Toddzilla

Banned

Aug 14, 2001

386

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Edmonds, WA

Jun 21, 2004

#8

• Jun 21, 2004

• #8

I just recently installed a 2003 Cobra IRS in my 95 cobra.

It bolts up except for the following issues....

1) The rear IRS subframe mount is designed to have 4 bolts, two horizontal, two vertical. The 99-older cars DO NOT have holes for the vertical bolts. Because of this you will either need to get the rear subframe mount welded to your chassis, or drill through the frame rail, get long bolts and bolt it down.

2) You will need to make new hard lines for the rear. Just buy a brake line T from the local auto parts store, buy some hardline and bend away.

3) I *think* that you need to use your stock 95 e-brake cables.

Other than that it bolts in.

Also, while it's out you might as well add MM IRS subframe bushings, these keep the IRS subframe from shifting around. This will help prevent wheel hop and improve handling. Lastly, adding an IRS pinion brace and pinion bushings will help too.

 

2

2xturbo

Founding Member

Jun 16, 2002

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Jun 22, 2004

#9

• Jun 22, 2004

• #9

Excellent! Thanks for the word.

 

95GTvert[bv12]

Founding Member

Apr 1, 2001

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Lake Tahoe, NV

Jun 22, 2004

#10

• Jun 22, 2004

• #10

well my problem with the sn platform IRS is that is is not tall enough to realy benfit from all of IRS the bushings and spring are realy bandaids for a bad IRS...I am not sure that this IRS is better then a Tq Arm setup...in fact for open track racing or auto cross i am sure that a Tq arm/3link set up would be much better then a IRS setup...at least when we are talking stock cobra IRS

 

Toddzilla

Banned

Aug 14, 2001

386

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Edmonds, WA

Jun 24, 2004

#11

• Jun 24, 2004

• #11

A TA/PHB setup is certainly better for performance than a stock IRS, and most likely a better performer than a modded IRS.

However, the IRS is still a HUGE improvement over the stock 4-link, rides better than a TA/PHB setup, and costs must less.

 

95GTvert[bv12]

Founding Member

Apr 1, 2001

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Lake Tahoe, NV

Jun 24, 2004

#12

• Jun 24, 2004

• #12

Toddzilla said:

A TA/PHB setup is certainly better for performance than a stock IRS, and most likely a better performer than a modded IRS.

However, the IRS is still a HUGE improvement over the stock 4-link, rides better than a TA/PHB setup, and costs must less.

Click to expand...

TA/PHB setup is under $1500 this IRS sway isn't going to be cheap...and you can build your own TA and PHB if you know how to weld.