What will Roush do with the 2015 Ford Mustang?


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Now that Ford has lifted the veil off the all new 2015 Ford Mustang, the questions now arise about what will Roush do with it? Will Roush build a version of the 2.3 liter EcoBoost Mustang? And how long will it take before Roush has Mustangs available?

All these questions are already coming to our in box and we’ll do the best to answer them. First of all, Roush has the unique position of being very close to Ford. The company does a great deal of engineering and proving work, that gives the a lot more early access to design information than many tuners.

Thus, the lead time for a new Roush Mustang is likely to be short. We are told the design work for the new body, suspension and even engine modifications has already been underway for the new 2015 Roush Mustangs, at least in concept form.


The new Mustang is an all-new platform which means Roush must design and engineer all new suspension components. Their braking systems likely need revisions. An all new body will require a complete design process for their aero-body package as well.

Most important, for those who live off the boost, their supercharger system will require a redesign as well, at the very least from the tuning perspective. The 2015 Mustang’s 5.0 liter V8 has a number of new design changes including new heads, valve sizes and the charge motion control valves that once lived in the 3V 4.6 V8 return.

All of the parameters provide a challenge for Roush when it comes to tuning their system for this new engine. Because the volumetric values and breathing characteristics as well as Ford’s ECM programming have changed, they have a job ahead in this area.

This means that the supercharged Roush models may not be available as soon as the non-supercharged ones. If Roush rolls out the same model lines as before, we may see Stage 1 and Stage 2 models shown and available before Stage 3 with boost.

How much power will the 50-state certified 5.0 supercharged Roush Mustang have? A safe bet is the same or better than the 2014 model’s basic Phase 1 system. Over time the availability of higher numbers as seen in the Phase 2 and Phase 3 system will be likely once the engineering is done.

As to the 2.3 liter EcoBoost Mustang, Roush may have an opportunity with this car that opens them up to a new market. They likely will have to measure pricing structures to determine if the 2.3 model is less expensive enough to justify offering one.

Imagine however a track car with a light weight engine up front that can be tweaked up with even more power. Ford has already hinted that the stock 305 horsepower rating on the 2.3 EcoBoost is a starting point for future days. Time will tell.

As to timing of when a 2015 Roush Mustang will be available, it all starts with Ford. At this point the Blue Oval is being a little vague about when the new pony will begin production. The best we are hearing is “summer 2014”.

This means that if indeed these cars begin rolling out in say July or August, we could expect Roush production to begin within 60-90 days at the very earliest. The latter statement is based on Roush having the ability to get their own parts and pieces tooling into place fast enough.

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About the author

Sam Haymart

Publisher and editor of Steed Publications news outlets including this one, ActivityVehicle.com, Motoring2.com, TheMustangNews.com and others. He has been an auto journalist since 1994 doing both freelance and self published news content online and in print.