IRS mods? - Mustang Evolution

Go Back   Mustang Evolution > Shelby | ROUSH | Boss | Saleen | SVT || Tech and Talk > SVT Mustang



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 07-27-2012, 12:08 AM   #1
Registered User
Newbie
 
Join Date: Aug 2011
Region: Washington
Posts: 13
IRS mods?

I'm looking to upgrade my suspension to eliminate some wheel hop and put more power to the road than side to side and hopping around. Anybody have some good recommendations? I was thinking diff brace and polyurethane diff and subframe bushings to start off with but not sure where to go after that.
Cobraman8801 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-27-2012, 05:57 AM   #2
Registered Member
Regular
 
bmabbott's Avatar
 
Join Date: Jul 2011
Region: Indiana
Posts: 293
Re: IRS mods?

That's a great start! doing the same thing here soon. I just want to eliminate a little bit of the wheel hop at the strip, but I'm not removing the IRS since it handles like a dream in the turns.

Where are you getting the differential brace from?
__________________
*01 Cobra, 4.6L, P&P heads, Stage 3 comp cams, MAC LT headers, O/R Hpipe, Bassani catback exhaust, Too many bolt-ons to list..., 4.30 gears. (364 rwhp/ 330 rwtq)
*01 Roush Stage 2, 4.6L, 5 spd, BBK Bolt-ons (Wife's)
*71 Chevelle, 350, 4 spd, H/C/I, (~400 hp)
*72 C10, 350, Auto, (my Daily Driver)
bmabbott is offline   Reply With Quote
Old 07-27-2012, 07:42 AM   #3
Legacy Member
Legacy
 
lowflyn's Avatar
 
Join Date: Aug 2003
Region: Mississippi
Posts: 19,890
Send a message via AIM to lowflyn
Full tilt boogie bushings kit and billetflow brace with new springs.

Best mod is the sra mod, love mine
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-07 DSG Focus -DD
335
lowflyn is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-27-2012, 08:42 AM   #4
Moderator Emeritus
Legacy
Regular
 
SpectorV's Avatar
 
Join Date: May 2003
Region: Alabama
Posts: 26,049
Send a message via AIM to SpectorV
Re: IRS mods?

Full tilt boogie is probably the best way to go, sure SRA solves many issues but you sacrifice a few things to get there. Overall both ways have good/bad its just a matter of what you want out of the car. Stock the IRS has MANY shortfalls (especially 99-01 versions) but.... with some money invested you can turn it around.

I installed an IRS brace (a must) as well as stiffer springs along with wider tires and I really dont have hop, but this is on the street not sure on the track (probably would hop on the track)
__________________
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List - Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)
SpectorV is offline   Reply With Quote
Old 07-27-2012, 09:28 AM   #5
Legacy Member
Legacy
 
lowflyn's Avatar
 
Join Date: Aug 2003
Region: Mississippi
Posts: 19,890
Send a message via AIM to lowflyn
I had bushings, brace and forward torque brace. Broke a halfshaft launching at track and another shifting into second on the street.

Haven't found a single downside to my sra yet
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-07 DSG Focus -DD
335
lowflyn is offline   Reply With Quote
Old 07-27-2012, 07:41 PM   #6
Registered Member
Regular
 
Butch's Avatar
 
Join Date: Nov 2011
Region: New Mexico
Posts: 1,653
Quote:
Originally Posted by Cobraman8801
I'm looking to upgrade my suspension to eliminate some wheel hop and put more power to the road than side to side and hopping around. Anybody have some good recommendations? I was thinking diff brace and polyurethane diff and subframe bushings to start off with but not sure where to go after that.
Heard but I couldn't find it, that the polyurethane bushings are no bueno, dont quote me on this but to my memory that's what I've heard. Keep asking though
__________________
I love speed and Nascar driving,,,
killing gears and dodging traffic,,,
-----NEHP---
{Never Enough HP}
Butch is offline   Reply With Quote
Old 07-27-2012, 09:41 PM   #7
Legacy Member
Legacy
 
lowflyn's Avatar
 
Join Date: Aug 2003
Region: Mississippi
Posts: 19,890
Send a message via AIM to lowflyn
Re: IRS mods?

If you're doing bushings delrin is the way to go. Full tilt boogie also incorporates grease fittings into the factory unit
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-07 DSG Focus -DD
335
lowflyn is offline   Reply With Quote
Old 08-14-2012, 10:23 AM   #8
Registered Member
Regular
 
drusmith's Avatar
 
Join Date: Sep 2010
Region: Michigan
Posts: 783
Send a message via Yahoo to drusmith
Re: IRS mods?

Do yourself a favor. Buy the FT 5000 Kit and be done! I installed this with the grease fittings and I never had wheel hoop again. top 3 mod I ever did to my Cobra! Full tilt Boogie FTW!!!
Complete IRS Bushing Kit Includes: Aluminum Front diff supports with Aluminum shimming washers to set pinion angle, Delrin Rear Diff support, UHMW IRS Subframe support set, Delrin Upper control arm bushings and Hardcoated inner sleeves, Delrin Lower control arm bushings and Hardcoated inner sleeves with shimming washers, Combination UCA and LCA bushing grease fitting kit. One pair of Grade 8, 9/16" bolts with nylock nuts and flat washers for the front subframe mounts.
FT 5000 $645.00
This kit includes: FT 1000, FT 1100, FT 1200, FT 1300, FT 1500, FT 1600 and FT 1700 (Save $20)
FTBR Order Page
drusmith is offline   Reply With Quote
Old 08-17-2012, 12:46 AM   #9
Registered Member
Regular
 
Brodyd's Avatar
 
Join Date: Jun 2012
Region: Maryland
Posts: 22
Is the IRS that big of a pain?
Brodyd is offline   Reply With Quote
Old 08-17-2012, 06:52 AM   #10
Registered Member
Regular
 
drusmith's Avatar
 
Join Date: Sep 2010
Region: Michigan
Posts: 783
Send a message via Yahoo to drusmith
Depends on how much whp ur at and what you plan to do with your car.
drusmith is offline   Reply With Quote
Old 08-17-2012, 09:28 AM   #11
Legacy Member
Legacy
 
lowflyn's Avatar
 
Join Date: Aug 2003
Region: Mississippi
Posts: 19,890
Send a message via AIM to lowflyn
Quote:
Originally Posted by Brodyd
Is the IRS that big of a pain?
If you like the drag strip then yes. If you just want a fun street setup it's perfect.
I quite enjoy being able to dump my clutch at 4200 and not worry about grenading another halfshaft
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-07 DSG Focus -DD
335
lowflyn is offline   Reply With Quote
Old 08-17-2012, 09:43 AM   #12
Registered Member
Regular
 
drusmith's Avatar
 
Join Date: Sep 2010
Region: Michigan
Posts: 783
Send a message via Yahoo to drusmith
Re: IRS mods?

Quote:
Originally Posted by lowflyn View Post
If you like the drag strip then yes. If you just want a fun street setup it's perfect.
I quite enjoy being able to dump my clutch at 4200 and not worry about grenading another halfshaft
exactly!! ^
drusmith is offline   Reply With Quote
Old 08-17-2012, 09:51 AM   #13
Registered Member
Regular
 
Brodyd's Avatar
 
Join Date: Jun 2012
Region: Maryland
Posts: 22
Re: IRS mods?

my cobra is an everyday car do you think keep the IRS as is is the best choice?
Brodyd is offline   Reply With Quote
Old 08-17-2012, 10:19 AM   #14
Registered Member
Regular
 
drusmith's Avatar
 
Join Date: Sep 2010
Region: Michigan
Posts: 783
Send a message via Yahoo to drusmith
Re: IRS mods?

Quote:
Originally Posted by Brodyd View Post
my cobra is an everyday car do you think keep the IRS as is is the best choice?
OMG yes, if you just everyday driving it the comfort of the IRS is way better than solid axle option. If you want to get more aggressive with HP than look into one of the Full Tilt Boogie kits. Night a day difference when it comes to wheel hoop. And no more blown half shafts.
drusmith is offline   Reply With Quote
Old 08-17-2012, 04:15 PM   #15
Registered Member
Regular
 
Brodyd's Avatar
 
Join Date: Jun 2012
Region: Maryland
Posts: 22
Re: IRS mods?

okay that's great for me then! but just for knowledge reasons isn't a IRS bad for drag racing?
Brodyd is offline   Reply With Quote
Old 08-17-2012, 07:55 PM   #16
Legacy Member
Legacy
 
lowflyn's Avatar
 
Join Date: Aug 2003
Region: Mississippi
Posts: 19,890
Send a message via AIM to lowflyn
Quote:
Originally Posted by Brodyd
okay that's great for me then! but just for knowledge reasons isn't a IRS bad for drag racing?
If you plan on running street tires or drag radials, yes. With a bias ply tire and some knowledge it's not all that bad
__________________
"I'm not driving too fast...just flying too low"
Mine:
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project-07 DSG Focus -DD
335
lowflyn is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Shelby | ROUSH | Boss | Saleen | SVT || Tech and Talk > SVT Mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



11:51 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.