American V-8 Power: Ford Mustang Boss 350 V-10
After we realized that any spin at launch was just burning down the tires and leaving them unhooked until the top of third gear, we tried several frustrating low-rev launches. No good. So the rear tire pressures were dropped significantly to give the contact patches a wider bite. That, of course, added a bit of steering and braking drama at the top of our acceleration runs (about 120 mph) with the end of the guardrail zooming up like a quarter-mile-long can opener.
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Development mules live hard lives, but this one held up well. The electronic modules on the passenger side manage the twin ignition systems. "Boss 351" decals are exactly as they were on the '71 model, the last officially to wear the name.
Finally, we scrabbled out a still-traction-limited 4.4-second blast to 60 and a 12.88/114.44 quarter-mile run. That beats the solid 4.8 to 60 and 13.01 at 110.69 we recently achieved driving an '03 SVT Cobra with the supercharged 4.6. We're confident that, with a set of drag slicks, sub-four-second runs to 60, a quarter in the low 12s, and a warped driveshaft are all possible. Perhaps another time.
The chances of this V-10 ever seeing the light of day resemble that of an Anna Nicole Smith presidential bid. At one time, the engine reportedly had a shot at slipping into the back of the exotic Ford GT. But the cool heads at SVT wisely went with a well-proven 5.4-liter V-8 and a supercharger. The original Ford GT was always V-8-powered, anyway, so it all made sense. Still, the tiny stealth team working on the V-10 believes it never got a clear opportunity to understand the GT's development timing and fairly bid for the job.
On this impassioned underground team's behalf, we can say its backdoor Boss delivers solid muscle, packages neatly into the Mustang's engine bay, and sounds badass. Our short experience behind the wheel indicates the engine's all-aluminum mass doesn't upset the car's basic balance much, either. We hammered the gas pedal, as did a long string of Ford test pilots, shredding tires, frying clutches, shattering pinions, and trashing three of the toughest manual gearboxes available for a street car.
Why? Because--in the very best Woodward Avenue tradition--that's the way it's done in Detroit, baby.
Mustang Boss 351 V-10 Experimental
Base price Undisclosed to protect the guilty
Price as tested Yo--see above
Vehicle layout Front engine, rwd, 2-door, 5-pass
Engine 5.8L V-10, DOHC, 4 valves/cyl, cast aluminum block & heads
Displacement, ci/cc 350.9/5751
Hp @ rpm 430 @ 6500
Torque @ rpm 405 @ 5500
Transmission 6-speed manual
Curb weight, lb 3565 (est)
Acceleration, sec
0-30 mph 1.8
0-40 mph 2.5
0-50 mph 3.5
0-60 mph 4.4
0-70 mph 5.7
0-80 mph 6.9
0-90 mph 8.3
0-100 mph 10.3
1/4 mile, sec @ mph 12.88 @ 114.44
EPA mpg Who cares?
On sale in U.S. Probably never/X-program one-off