Ford Mustang with twin-turbo V-6 for 2010
We hear there is a faction at Ford seriously contemplating fitting the new twin turbo EcoBoost V-6 to the 2010 Mustang. As they try to figure out how to meet 35mpg CAFE by 2020, Ford engineers are wondering whether the V-8 has a long term future. The EcoBoost engine, which is currently scheduled to debut in a performance version of the Fusion, could be the more fuel efficient alternative for Mustang in the long term. Depending on spec, the EcoBoost is capable of up to at least 415hp, and has the torque to match a regular V-8.
Traditionalists need not worry, though - V-8s will still be very much part of the Mustang program for 2010. If the EcoBoost version does make production, Ford would probably offer it alongside the V-8, and let buyers decide which they prefer. There won't be much of a price difference, if any - although the base V-6 is a cheaper engine, by the time things like turbochargers are added it's basically V-8 money, say our sources.
Don't expect any changes in today's, base 4.0-liter V-6 offering, as its prime purpose is motivating low-end and rental-fleet Mustangs. But the Mustang GT model's V-8-currently a 4.6 liter, SOHC, three-valver-will be replaced by a new 5.0-liter engine that's essentially an evolution of the old architecture. In fact, the new 5.0 may even appear in a limited edition run-out series of current model Mustang GTs - is it finally time for the reborn Boss 302?
One Ford engineer confirmed that the work done to create the Bullitt-edition Mustang's uprated 4.6 "has a future." That engine, described in our first test story (January 2008) remains internally stock, but breathes better due to a Ford Racing open element, cold air intake system, revised mufflers, a new crank damper (which ups the redline by 250 revs), and revised fuel mapping. This engine management programming allows the use of regular fuel, but switches to a more aggressive timing curve when it detects premium in the tank. The result is 315 horsepower, up from the current GT's 300. The Bullitt's V-8 is freer and quicker revving than before, and sounds great due to the new intake. There's no reason to think the next gen GT's powerplant won't take its cue from this technology, and thus get the same tricks. Something like 325 to 350 horses out of the new 5.0-liter V-8 sounds feasible. Single exhaust indicates it's likely a V-6-powered mule.
That takes care of standard Mustang models. What about the Shelby versions?
Our intel had the 500-horsepower, supercharged 5.4-liter V-8 in the Ford Shelby GT500 pegged for a two-year or so life-that being 2007 and 2008, perhaps rolling into '09 depending on how well it sold, and what Shelby's own product plans were. Demand has proven strong, and we can confirm there'll be a Ford built, developed, and produced Shelby GT500 version of the 2010 Mustang.
Final powertrain has yet to be decided, but Ford has been testing supercharged versions of the new 5.0-liter V-8 to see whether it makes the horsepower needed. Since Chrysler and GM have potentially bigger horsepower numbers on tap for the Challenger and Camaro, Ford has to be looking at more than 500hp for its flagship Mustang. The upcoming GT500 KR punches out 540 horses, and it's our hunch this could become the standard Shelby powerplant in the short term.
Model rollout plans are still being finalized, but the current scenario is that 2009 will be an abbreviated model year, those cars being identical to the 2008. Then, the 2010s will be introduced in spring 2009, much as Ford did when it introduced the 19641/2 Mustang in April of that year, which then dovetailed into the '65.The biggest news from a design standpoint will be the addition of a muscular-looking shoulder hump just aft of the door openings. The doors remain the same, as do the roof and the fixed, triangle-shaped windows in the sail panels. The new kink is said to resemble that worn by the Dodge Charger, but a bit more flowing line. Front and rear fascias also get a tuneup. We haven't seen the new nose, but it wouldn't surprise us if it looked a little more like the current Ford Shelby GT500. Out back, the taillights are massaged a bit, and the rear bumper gets a 45 degree bevel job, adding more surface detail to the current rear's squarish lines. Expect new colors and wheel designs, too.
