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2012-2013 Boss 302 Mustang
Boss 302 or 2015 Mustang GT??
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<blockquote data-quote="legos_mustang" data-source="post: 14701145" data-attributes="member: 124495"><p>The IRS is definitely not "token". All things being equal it is a much better rear end for the car, and Ford is definitely moving in the right direction. The live rear axle is outdated and should have been replaced years ago. It wasn't for three main reasons IMHO. 1 - cost. The live axle is much cheaper than an IRS. 2 - It preforms equally as well on a quarter mile track. Finally, 3 - Ford had gotten the performance of the live axle to a point where it was "close enough" to the performance of of similarly priced cards on a road race. </p><p></p><p>So all things being equal - Ford had a win in its corner. </p><p></p><p>But Chevy finally got serious about suspension with the 1LE package and it took #3 away from ford. A stock 2011-2014 GT with the performance pack can not match the 1LE package <strong><u>generally</u></strong> in a road race.</p><p></p><p>I say generally because there will always be a track, or a difference between two drivers, where the opposite could be true. But in general, you can expect the 1LE package to spank a GT on a road race. (Quarter mile remains the same - the live axle is equal and sometimes even a little better)</p><p></p><p>So I wasted a lot of time just to tell you the IRS isn't just a fad. It is a definite improvement to the car. On most tracks you will definitely notice the difference right away. </p><p></p><p>However - I would still go for the Boss. Ford put that much more work into the Boss matching the spring rates, adjustable dampers, sway bars, etc. It can and does still stay close and often beat a new track pack GT (in my experience) Especially the LS.</p><p></p><p>This will probably change in the next couple of years. This is the first year of Ford's IRS. They are completely watching to see what people's cars are doing as well as the aftermarket on what people are getting. I expect they will find places to reinforce, use stronger bushings, and maybe adjust spring and damper rates probably in the 3rd year of the car. The first year is always somewhat of an experiment as you can never replicate in testing all the things that will happen once the car goes on sale.</p><p></p><p>Get the LS. You will be more than happy with it and 5 years from now people will look at a normal gt like it is nothing special. However they will still look at the LS with envy.</p></blockquote><p></p>
[QUOTE="legos_mustang, post: 14701145, member: 124495"] The IRS is definitely not "token". All things being equal it is a much better rear end for the car, and Ford is definitely moving in the right direction. The live rear axle is outdated and should have been replaced years ago. It wasn't for three main reasons IMHO. 1 - cost. The live axle is much cheaper than an IRS. 2 - It preforms equally as well on a quarter mile track. Finally, 3 - Ford had gotten the performance of the live axle to a point where it was "close enough" to the performance of of similarly priced cards on a road race. So all things being equal - Ford had a win in its corner. But Chevy finally got serious about suspension with the 1LE package and it took #3 away from ford. A stock 2011-2014 GT with the performance pack can not match the 1LE package [B][U]generally[/U][/B] in a road race. I say generally because there will always be a track, or a difference between two drivers, where the opposite could be true. But in general, you can expect the 1LE package to spank a GT on a road race. (Quarter mile remains the same - the live axle is equal and sometimes even a little better) So I wasted a lot of time just to tell you the IRS isn't just a fad. It is a definite improvement to the car. On most tracks you will definitely notice the difference right away. However - I would still go for the Boss. Ford put that much more work into the Boss matching the spring rates, adjustable dampers, sway bars, etc. It can and does still stay close and often beat a new track pack GT (in my experience) Especially the LS. This will probably change in the next couple of years. This is the first year of Ford's IRS. They are completely watching to see what people's cars are doing as well as the aftermarket on what people are getting. I expect they will find places to reinforce, use stronger bushings, and maybe adjust spring and damper rates probably in the 3rd year of the car. The first year is always somewhat of an experiment as you can never replicate in testing all the things that will happen once the car goes on sale. Get the LS. You will be more than happy with it and 5 years from now people will look at a normal gt like it is nothing special. However they will still look at the LS with envy. [/QUOTE]
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