Mark Houlahan
Tech Editor, Mustang Monthly
August 2, 2012
Photos By: Steve Baur

The build took Jeff four years, which isn't long by many of the FFR builds we've seen, but Jeff had a good excuse for his delays. Early on in the build, he became a father when he and his wife welcomed their new daughter, Jenna. He's had more than 60 brave passengers in the Roadster in the eight months he's had the car completed and on the road, and even taken home a few car show trophies. Admittedly, the first thing we thought when we saw Jeff's FFR is the same thing many comment on. How do you put that kind of power down in such a small, light car?

"I can put down 95 percent of the power with very little wheelspin," Jeff states. Since a turbo depends on load to make boost, and with the tall gears Jeff uses, the Roadster makes more boost with each gear change. With a Competition Engineering rear antiroll bar pinning the rear tires down, the Roadster puts down roughly 550 hp in First and about 600 hp in Second. Third gear on up, the boost is controlled by a boost controller, so Jeff can easily set it for the conditions he has to keep the car controllable. It certainly helps that the replica has the engine behind the front wheel centerline and a lot of its weight in the rear, including battery and water/meth supply tank, helping traction.

Jeff says the project wouldn't have been finished without the help of his father, as well as his brother, Jay, lending their technical expertise to the build. Help also came in the form of babysitting duty from his mother, Nancy, and his in-laws, Virginia and Jay Godwin, so he could get some time in with the project. Of course, big thanks goes out to his kids, Jenna and Luke, and his wife, Abbie, as they certainly had to endure those moments of absentee dad/husband that all "car families" have to deal with from time to time. It's usually a team effort that us gearheads get out to the garage and finish that project so the whole family can enjoy it!

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The Details

Jeff Barfield's '65 Factory Five Roadster Replica


  • 408ci Windsor
  • 4.00-inch stroke
  • 4.030-inch bore
  • Dart Iron Eagle block
  • Eagle forged 4340 steel crankshaft
  • Eagle forged 4340 steel 6.200-inch H-beam rods
  • ARP L19 rod bolts
  • Custom forged CP dished pistons
  • 9:1 compression ratio
  • AFR 225 aluminum cylinder heads
  • AFR Inconel exhaust upgrade for turbo use
  • AFR titanium retainer upgrade
  • Cometic MLS head gaskets
  • 2.08-inch intake, 1.60-inch exhaust valves
  • Custom turbo profile Comp Cams hydraulic roller cam
  • Edelbrock EFI Super Victor aluminum intake
  • Wilson Manifolds intake elbow
  • Accufab 90mm throttle body
  • 120-lb/hr fuel injectors
  • Custom K&N air filter
  • MSD Digital 6 Ignition
  • Big Stuff 3 EFI system
  • Borg Warner T6 83mm turbo
  • Custom intercooler
  • Water/Methanol injection system
  • Short block built by AD Performance, Redmond, WA


  • Modular Mustang Racing TKO-900 (modified Tremec TKO-600) five-speed manual
  • McLeod Street Twin clutch
  • Aluminum flywheel
  • Lakewood bellhousing


  • 8.8-inch Ford axle housing, shortened 2 inches per side
  • Fully welded axle tubes, built by DTS
  • Axle girdle cover
  • Eaton posi unit
  • 31-spline axles
  • 3.08 gears


  • Custom turbo headers built by owner, 1-5/8-inch primaries
  • 2-inch pipes to turbo, 5-inch down pipe split into 3-inch side pipes
  • Thrush 3-inch mufflers


  • Front: Tubular adjustable control arms, Koni coilover shocks
  • Rear: '87-'93 Mustang-based four-link, Autoweld upper control arms, FFR lower control arms, Carrerra coilover shocks, Competition Engineering antiroll bar


  • Front: '94 Mustang GT 12-inch disc, two-piston caliper
  • Rear: '94 Mustang GT 10.5-inch disc, single-piston caliper


  • Front: Team III AC-III, polished lip, 17x9
  • Rear: Team III AC-III, polished lip, 17x11


  • Front: Nitto NT555, P255/40R17
  • Rear: Mickey Thompson ET Street, P315/35R17


  • Black leather low-back bucket seats, black carpet, custom console, three-spoke heritage-look leather-wrapped steering wheel, Alpine audio, JL Audio amplifier, four 6-1/2-inch speakers, Auto Meter Pro-Comp Ultra Lite instruments, Simpson five-point harness restraints, heated seats


  • Titanium Silver Metallic basecoat/clearcoat with black stripes by Whitby's Motorcars, Greensboro, NC; black side pipes; black rollbar; black quick jacks; Tri-bar headlights; front brake duct screens; wing windows; sun visors