Is swapping to an IRS worth it?
Thread Starter
4th Gear Member
Joined: Jun 2009
Posts: 1,147
From: Arizona
That is good to hear. As soon as I hear back from him and talk it over I will see if it is worth it. Thanks again for the input!
BrandofPoop
Joined: Jan 2007
Posts: 3,835
From: Bay Area
5th Gear Member
Joined: Feb 2010
Posts: 2,758
From: PA
Waiting for uber to come in here and give his opinion haha.
IRS is a lot more comfortable for DD'ing but i dont ever plan on switchig my SRA out. Im going to get LCA's, flsfc's, new springs, and new shocks and struts and that should be good enough for me for suspension.
IRS is a lot more comfortable for DD'ing but i dont ever plan on switchig my SRA out. Im going to get LCA's, flsfc's, new springs, and new shocks and struts and that should be good enough for me for suspension.
5th Gear Member
Joined: May 2009
Posts: 2,241
From: kentucky
Im just wondering Jazzer, why do you think it is better? With an Irs, the wheels are always flat. No matter if your suspension is compressed or not. I have been in both a built solid axle with phd and torque arm. The IRS feels like it grips the road better to me. Also, the ride quality is great! i have solid bushings and it rides great. I do have to say, a stock IRS is easily beat by a SRA, however with solid bushings, i believe the IRS is far superior. If a solid axle was better, race teams would still have them. (Lemans, indy, etc)
4th Gear Member
Joined: Sep 2009
Posts: 1,481
From: NC
IRS would be an excellent upgrade for a DD car!!!
The improvement in ride quality is worth it if the swap is cheap.
If you want to take the car to the drag strip, DON'T do it. The solid rear axle is much better for drag use.
If you want excellent handling, it matters what surface you plan to run it on. Bumpy surfaces would tilt the tables toward the IRS. However, if you will run it on a track or relatively smooth surface you can just keep your SRA.
Bottom line... what will it cost you to make the swap and what do you plan to do with the car?
The improvement in ride quality is worth it if the swap is cheap.
If you want to take the car to the drag strip, DON'T do it. The solid rear axle is much better for drag use.
If you want excellent handling, it matters what surface you plan to run it on. Bumpy surfaces would tilt the tables toward the IRS. However, if you will run it on a track or relatively smooth surface you can just keep your SRA.
Bottom line... what will it cost you to make the swap and what do you plan to do with the car?
Former Sponsor
Joined: Jul 2011
Posts: 2,570
From: FL
Im just wondering Jazzer, why do you think it is better? With an Irs, the wheels are always flat. No matter if your suspension is compressed or not. I have been in both a built solid axle with phd and torque arm. The IRS feels like it grips the road better to me. Also, the ride quality is great! i have solid bushings and it rides great. I do have to say, a stock IRS is easily beat by a SRA, however with solid bushings, i believe the IRS is far superior. If a solid axle was better, race teams would still have them. (Lemans, indy, etc)
Hmmm. Awkward. I disagree with your statements in bold.
With a solid axle (NOT IRS) the tires are always flat. With an IRS, the rears generally have a little bit of negative camber.
And my justification for NEVER considering a swap to IRS (I have IRS swapped a customer's car though) is that the solid axle is better on the dragstrip and at least as good on a roadcourse. Sure, IRS is smoother over bumps, but if I wanted a car that was smooth over bumps, I wouldn't have bought a Mustang. It's irrefutable that the SRAs are faster on the dragstrip, and on the roadrace track, Ford Racing, Roush, Steeda, basically all of the Pro racers are using solid rear axles. (and winning races on them!)
5th Gear Member
Joined: Sep 2006
Posts: 4,760
From: Northwest Ohio (Fort Wayne Area)
the only way i would get rid of my irs is if i needed to go with a 9in there are cobras out there running 9s with 1.4 60's.
http://youtu.be/cZ9LkCyVU20
http://youtu.be/cZ9LkCyVU20