ET limit on IRS suspension

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54life

New Member

Jul 24, 2003

392

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0

Cali currently at Ft. Rucker AL

Feb 10, 2004

#1

• Feb 10, 2004

• #1

does anyone know how fast i can run on my IRS suspension before I have to do a solid axle swap? I should be breaking high 12's here soon once i swap my gears out.....I am putting on a procharger d1sc in about 6 months which should put me at low 11's or even high 10's with drag radials. When should i expect my halfshafts to say goodbye? Thanks

 

xenon

New Member

Jun 17, 2003

379

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Ottawa, Canada

Feb 10, 2004

#2

• Feb 10, 2004

• #2

Get yourself some bulletproof halfshafts when they die.

http://www.driveshaftshop.com/MUSTANGC.V..ivnu

 

U

Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Feb 11, 2004

#3

• Feb 11, 2004

• #3

There are a few guys running low 10's with the 6-speed and the IRS. May need to upgrade the half shafts and the T-56 input shaft if you want to run those numbers all the time though....

 

5

54life

New Member

Jul 24, 2003

392

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0

Cali currently at Ft. Rucker AL

Feb 11, 2004

#4

• Feb 11, 2004

• #4

t56 input shaft??? On a t45???? Thanks for the website and the info. I plan on staying in the 10's and keeping my IRS (I personally love it)

 

djtech

Founding Member

Oct 17, 2002

372

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16

Metro Detroit

Feb 11, 2004

#5

• Feb 11, 2004

• #5

54life said:

does anyone know how fast i can run on my IRS suspension before I have to do a solid axle swap? I should be breaking high 12's here soon once i swap my gears out.....I am putting on a procharger d1sc in about 6 months which should put me at low 11's or even high 10's with drag radials. When should i expect my halfshafts to say goodbye? Thanks

Click to expand...

Walsh Motorsports has a White 99 Cobra coupe with a stock IRS running in the 9's

 

P

Predator03

New Member

Feb 10, 2004

3

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0

Texas/ California

Feb 11, 2004

#6

• Feb 11, 2004

• #6

Selling 03 Cobra IRS cheap

IRS has 3k miles with everything except brakes.
03 Cobra
I want 1200.00, maybe 1000.00.
If interested call my cell at 956-342-2900
Or email me at jmjett01@yahoo.com

Leave a message at anytime.

 

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Uncle Meat

Banned

Jun 13, 2002

0

1

0

Prattville, Alabama

Feb 11, 2004

#7

• Feb 11, 2004

• #7

54life said:

t56 input shaft??? On a t45???? Thanks for the website and the info. I plan on staying in the 10's and keeping my IRS (I personally love it)

Click to expand...

Sorry 54life! I was thinking you had an '03!

Well you do have basically the same rear end though. The '03 did come with beefier GKN halfshafts and a thicker IRS brace compared to the pervious year. I would assume you need the same upgrades as we do. Halfshafts and some sort of better rear end girdle. I'll tell you a little secret... MJChip from Zone-5 Performance Products is almost ready to release a much needed differential cover girdle for the Cobra IRS. It's being tested by a half-dozen hard core guys right now. If you want to learn more you can read about it here: http://www.modularfords.com/forums/showthread.php?t=8298

Get you one of those and a set of after market Half shafts and you'll be damn near bulletproof. (Just have to worry about the stub shafts after that!)

U.M.

 

99CobraJMS

Founding Member

Sep 10, 2001

1,545

0

36

Austin

Feb 11, 2004

#8

• Feb 11, 2004

• #8

I will be doing a solid axle swap in the next few months, I will sell you my GKN Stage IIIs from my current 99 setup. So when you break those stockers give me a PM. I also got two stock 1/2 shafts for my 99 that I plan to sell with the IRS setup on ebay. I feel the GKNs are worth a premium so I will sell them alone.

John

 

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54life

New Member

Jul 24, 2003

392

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0

Cali currently at Ft. Rucker AL

Feb 12, 2004

#9

• Feb 12, 2004

• #9

thanks unclemeat...man you know everything...I appreciate all your help man