Pete Epple Technical Editor
March 16, 2012
Photos By: Evan J. Smith, Marc Christ

Place: 3
Brian Filsinger • '95 Cobra R

Brian Filsinger brought out the most unique Pony of the event. His supercharged Mustang is not only a Snake, it's an ultra-rare R model. The SN-95's original 351 has been bored and stroked to 427 ci, and a Vortech YS centrifugal supercharger has been added to seriously increase its horsepower potential. Before you start ripping these pages apart, know that Brian bought the car in its modified state.

When Brian's turn came, he was extremely relaxed. "The car is going to make what it's going to make," he told us. "I'm just here to have a fun day."

Since your author was running the dyno, I had firsthand experience with all the cars, and when I got in Brian's to back it on the dyno, I didn't want to get out. The Recaro seats were super comfortable, and the car felt very powerful. It didn't feel much different than any other SN-95 I had ever been in, but knowing it was a Cobra R kept me glued in the seat. But you want the facts.

After bringing the fluids up to temperature, we made the first pull. The car pulled hard through the rpm band all the way to the 6,500-rpm redline. Once the wheels stopped, the screen read 696 rwhp and 736 lb-ft of torque. Brian and I both knew there was more in it, as belt slip kept the boost low. On the next run, the blown small-block came up harder, which indicated the warmer belt was gripping the pulleys better than before, and the numbers showed what we heard—it laid down 755 rwhp and 750 lb-ft of torque. After a short cool down period, we tried to beat that number, but it wasn't meant to be. Still, a real Cobra R that makes 755 rwhp is extremely impressive.

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Brian Filsinger • '95 Cobra R
Engine Displacement 427 ci (pushrod)
Transmission T56
Power Adder Vortech YS Centrifugal Supercharger
Cylinder Heads Edelbrock Victor Jr.
Camshaft(s) Custom grind (specs undisclosed)
Fuel Injection System Stock EFI
Rear Gear 3.55:1
Tires Nitto NT555R Drag Radials
Max Power 755 rwhp
Max Torque 750 lb-ft
Max Boost 16.71 psi