I've put over 2,000,000 miles on vehicles with SRA and have never had anything other the an axle seal issue. The 2 vehicles I've driven over an extended period of time that had IRS couldn't stay out of the shop needing bushings. BTW: most of those vehicles had IFS also guess what those needed bushings over 100,000 of use also! Simple fact is IRS is not a panacea, they have their own issues. Number one on that list is reliability and number two is cost of repair. Putting one in a Mustang for everyday use is insane. Putting on in a track car is a great idea! It should be an factory option!And I'm telling you that the 3 years I spent working on training salesmen proved to me without a shadow of a doubt that 1 in 100 actually care. They will do and say whatever it takes to get you into a car and out of the building so they can sell another. Asking a car salesman why the IRS is better than the SRA is like asking a bat boy at a Braves game the best way to throw a slider. He doesn't know, and he doesn't care.
Have you never driven a car with an IRS and big horsepower before? There seem to be plenty of Supras, Vipers, Vettes, more making 4 digit horsepower numbers and miraculously they all survive, or are you concerned because you don't feel you'd be up to the task of controlling a car where the two rear wheels aren't directly linked by a barbaric piece of steel pipe?
Please stop harping on the set of broken axles by AM as a failure point. Replacement axles will be availalbe soon and for cheap. I bet you could do rear half shafts and subframe bushings for $750 by the time we're all said and done in the market. The 8.8 has had plenty of issues that needed fixing, it was no champion of reliability and perfection.
$200 for panhard bar and brace, $400 for upper and lower control arms, $300 for 31 spline axles, $200 for welding the axles tubes so they don't rotate, etc....
Like the other 99.998% of the people who are members of this forum.:smmon::smmon::smmon:
:nono: Your still thinking like a drag racer.
All,
would this solution perform as well as a Griggs setup on my car.
Jeff
That cost would be miniscule vs. the cost of repairing it every time you drove it hard!
Like the other 99.998% of the people who are members of this forum.
How are those half-shafts holding up on the 15s so far!
All in all i'd say pretty good. All the cars that are out there, maybe 2 or 3 have broken halfshafts under extreme conditions. American Muscle broke a halfshaft running slicks, 5000rpm launches, Justin Burcham behind the wheel on an incredible track prep and cutting a 1.595 60' time. Putting 350+ ft/lb of torque into a very sticky tire and good prep from a stand still is an incredible amount of shock to any stationary item that is subject to sudden twisting forces such as that. Ford isn't going to invest the money and time into the halfshafts to hold 1200 ft/lb of torque from the factory. It is not necessary for them and it leaves room for Ford Racing and other aftermarket vendors to fill the gaps in. Of all the other cars out there they are holding just fine.
The weakest point will always give. The SRA would bend axles as well. Ive seen plenty of LCA mounts fail, and UCAs as well. The halfshafts are almost always the weakest point in any IRS, but there are always solutions.
Will be interesting to see the aftermarket adapt to the IRS in the s550.
-J
Ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24665
More ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24667
Minor savings and as such still ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24682
That kind of coin has you almost all the way to a complete 8.8" axle assembly from Strange!
Ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24665
More ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24667
Minor savings and as such still ouch! http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=24682
That kind of coin has you almost all the way to a complete 8.8" axle assembly from Strange!
Cortex makes great stuff!
Pic of the S550 IRS going into the S197: https://www.instagram.com/p/BUQYLyeh-JJ/
Very cool man, you will LOVE the PBH built 6R.
I'm not impressed with this whiney 8.8 in my '14, it can't handle any track launches without howling on the way home. Maybe if they have a built IRS option I'd consider it down the road.
Please keep us updated on your project.
-J
....and I miss the IRS from my M3.the one thing i dislike about my car is the SRA. i miss the IRS from my terminator.
I am waiting on Crick from CorteX Racing to finish his 2015 IRS swap into the S197 chassis first
Is there a place we can follow the progress of this project?
.