Michael Johnson
Associate Editor, 5.0 Mustangs & Super Fords
April 6, 2013
Photos By: Henry DeKuyper

Horsepower is great, but torque is what you feel. Even with high-horsepower combinations, if the torque number is below that of horsepower, you don't get the same sensation of acceleration you would with a high-torque combo. A lot of import and even modular combinations make a lot of horsepower, but even though you get the speed, the earth-moving part is missing from the equation.

Such was the case for Jackson, Mississippi's Robert Sanders, but thanks to this '92 GT, he's no longer missing that grunt.

Besides, a Fox Mustang is more at home in Mississippi than his previous Supra, Evo, and turbocharged Hayabusa. Robert's previous whips had plenty of horsepower. However, having built Robert's previous Supra and Evo, Insane Speed in Las Vegas shifted into domestic mode, and built this Fox as a rolling business card. Toward the end of the build. The car caught Robert's eye, and the rest is a cloud of tire smoke.

Robert's Evo seemed to stick out like an F-body at a Mustang race. He needed something that would blend in with Mississippi's automotive landscape, and Insane Speed was almost finished with this Fox when Robert proposed a trade—his Evo for the Fox. Robert hasn't turned back.

Though Insane Speed's specialty is foreign to us, the shop does visit the domestic side of the tracks more than one would think. The shop Web site proves the guys like to work on anything fast. It built at least a couple Four-Valve Mustangs, but for a shop that builds Twin-Turbo Lamborghini Gallardos, Porsches, and Supras, a Fox is a definite change of pace. We don't know of too many shops that transfer from working on a Lambo to a Fox Mustang. A Lamborghini V-12 or Porsche flat-six is a little different than a pushrod Ford engine, but still, they needed a car to play with, and why not show off their talents by building this GT.

As you can see, Insane Speed is equally adept at building a Fox Mustang as they are a Lambo or Supra. Working on the most technologically advanced cars on the planet transferred over to this Fox in its build quality. OK, so maybe those drum brakes don't scream supercar, but more on those later.

The engine is a 363ci built by Insane Power Competition Engines, Insane's machine shop arm of the business, using a 4.125-inch bore with a 3.4-inch crank and a set of Diamond pistons that spell out a boost-friendly 9.0:1 compression ratio. Insane Speed's in-house tuner Mikey Angel, tuned the car using a FAST XFI to run on pump gas to make the car daily driver friendly.

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It could easily be confused with a 14-second stocker with a few exterior mods. However, the four-lug Cobra R replica wheels successfully hide the 777 lb-ft of torque, and the flawless Kona Blue paint should help onlookers realize this car isn’t your average Fox. The one-piece headlights feature a Bi-Xenon HID conversion, while the taillights have been smoked—and if you get a good glimpse of them, you’ve been smoked! The cowl hood and Cobra exterior upgrades are from Cervini’s Auto Designs, and a Saleen rear spoiler harkens back to days we wish we could remember.

"I was absolutely floored by the numbers Mikey was able to get on 93-octane," Robert enthused. On the pump, the car pounds out 680 hp and 777 lb-ft of torque. "That's when I knew the guys had delivered something really special."

To Robert, the beauty of the car is that he's running faster or right with almost anything on the street on a mild 14 psi wastegate setting, and he tells us there's plenty more on tap if he ever needs it. "At this point the car isn't even working hard," he added.

Speaking of not working hard, with a push-rod combination, you'd think it would be like driving a Super Street Outlaw car, but Robert refutes that thought. "The car is so mild and civil that I honestly could drive it every day without concern."

Making the car more comfortable than your average Fox GT, the car features a GT500 seat conversion. Insane Speed did the seat conversion, but they didn't stop there, the Fox also boasts 1,200 watts of competition stereo, as well. "You sometimes forget you're in a 9-second car," Robert said. "It honestly can be a car you take your girl out to dinner in and take street racing afterward if you want." Not that we condone street racing, but you get the picture.

Oh, and those four-lug Cobra R replica wheels and stock brakes? Those were kept on the car to throw off anyone "trying to judge what the car is capable of," Robert says with a laugh. "I'm not sure that's going to work after this issue comes out."

Horse Sense: Insane Speed bolstered this Fox with Kenny Brown Performance's full-length subframe connectors, Extreme Matrix bracing, and Jacking Rails. To help tighten up the Fox even further, the cars' weak point, the torque boxes, were also welded.

5.0 Tech Specs
Engine and Drivetrain
Block
Dart iron, four-bolt mains
Crankshaft
Scat 3.4-in forged
Rods
Scat
Pistons
Diamond w/ Total Seal rings
Camshaft
Comp Cams custom w/ T&D roller lifters
Cylinder heads
AirFlow Research 185cc w/ Insane Power Competition Engines-ported; Ferrea 2.02/1.60 valves, valve-springs, and titanium retainers
Intake manifold
Edelbrock RPM II w/ Trick Flow 75mm throttle body, and Insane Speed cold-air intake
Power Adder Precision Turbo T4 6765 billet-wheel ball-bearing turbo w/ Turbosmart 50mm wastegate; Turbosmart Race blow-off valve; 14 pounds of boost; Insane Speed intercooler; and AEM water/meth injection
Fuel system
Triple Walbro in-tank pumps w/ Trick Flow billet fuel rails, Trick Flow fuel-pressure regulator, Injector Dynamics 1,000cc injectors, and a Kenne Bell Boost-a-Pump
Exhaust
Insane Speed stainless turbo headers w/ Flowmaster mufflers, and custom tailpipes
Transmission
Tremec TKO 600 Extreme w/ 26-spline input shaft, Science Friction twin carbon/Kevlar Pro-5.0 shifter, and FRPP aluminum driveshaft
Rearend
8.8 w/ UPR Products billet girdle, 3.27 gears, Moser axles, Cobra differential, and welded axle tubes
Electronics
Engine management
FAST XFI Ignition
MSD 7AL2 Plus w/ ACCEL dual-sync distributor, MSD HVC II coil, ACCEL plug wires, and NGK plugs
Gauges
Auto Meter
Suspension and Chassis
Front suspension
K-member
Stock
A-arms
Stock
Struts
Tokico w/ UPR Products caster/camber plates
Springs
Eibach
Brakes
Short Stop rotors w/ Short Stop pads, braided steel brake lines
Wheels
Cobra R replica
Tires
Michelin PS2 245/45-17
Rear suspension
Shocks
Tokico
Springs
Eibach
Control Arms
BBK Performance
Brakes
Stock drum
Wheels
Cobra R replica
Tires
Mickey Thompson ET Street radial 295/40-17

Insane Power Competition Engines is Insane Speed’s machine shop/engine building arm of the company. That’s who built the car’s 363 cubic inches of hurt feelings. No, it wouldn’t scare the whole neighborhood naturally aspirated, but a Precision Turbo single supported by an AEM water/meth injection system is sure to make a liar out of those drum brakes. The wicked-fast combo is cooled thanks to a Ford Racing aluminum radiator, a 160-degree thermostat, a custom aluminum fan shroud, and twin electric fans.