In our October issue, we introduced you to Mike Winterboer, Will and Kelly McLearran, and Brian Tuuri. In the relative scheme of things, these probably aren't names you would find lit up on a marquee. However, in the world of hot six-cylinder performance, these folks are quite significant. Classic Inlines and McLearran Motorsports have worked together for years to develop performance parts for classic Ford sixes. Will and Kelly, especially, have been so successful that they've managed to crack the 10-second barrier with a turbocharged Falcon sedan known all over the great American West.
Winterboer has been involved in construction for most of his adult life. Educated in aerospace in the early '70s, he planned a career in aviation. However, the Arab oil embargo changed all that, thrusting him into construction instead. Mustangs have been Winterboer's passion for nearly as long as there have been Mustangs. He bought his first one-a Signalflare Red GT hardtop-when he was in high school. Later, he set his sites on a '69 Mustang SportsRoof at a local Ford dealer. His father wouldn't agree to it, but the dream of owning a '69 SportsRoof remained all these years [sound familiar?-Ed.]. When he located this L-code SportsRoof a year ago, he realized it was now or never.
Winterboer founded Classic Inlines as Ford Six Performance many years ago, with virtually no financial backing and an abundance of horse sense. "It took every penny I had to develop an aluminum cylinder head for these classic Ford sixes," he says. He adds that it has been difficult to find people interested in supporting six-cylinder performance products.
Will McLearran begins fabrication...
Will McLearran begins fabrication work to accommodate the Yonaka intercooler. Believe it or not, little cutting had to be done to make room for such a large intercooler. Thank goodness Mike Winterboer didn't want A/C in this car.
We began our Classic Inlines project with Mike's '69 SportsRoof at The Mustang Shop in Mesa, Arizona, where Winterboer's SportsRoof was outfitted with Opentracker and Mustangs Plus Grab-A-Track suspension components, Edelbrock shocks, plus its own power rack-and-pinion steering system for exceptional handling. The Mustang Shop also bolted on Baer disc brakes at all four corners for over-the-top stopping power. Winterboer opted for American Racing Torq-Thrust D wheels for the authentic period look from the '60s. He had Maaco do a quick-shoot in Screaming Yellow accented with Battleship Gray.
In our last issue, the McLearrans built Winterboer a powerful 273ci stroker six ready for artificial aspiration from an intercooled turbo package, fed by port fuel injection and raw imagination. This month, we'll wrap up this project by showing you how the whole gang outfitted the engine room for state-of-the-art performance.
Power To The Firmament
When Winterboer was planning his six-cylinder powerhouse, he did a lot of thinking about the driveline. He considered the venerable Ford Top Loader four-speed, which is possible, rugged, and bulletproof. But he wanted efficiency for cruising, so he chose Tremec's World Class T5 five-speed transmission and a limited-slip 8-inch rearend from Randy's Ring & Pinion.
Projects like this aren't...
Projects like this aren't for the weak of heart. Because the McLearrans and Brian Tuuri have a lot of fabrication experience, plumbing Winterboer's SportsRoof for turbocharging was straightforward. The key to success is accurate measuring and close attention to detail. Here, Will McLearran and Tuuri measure for the 3-inch intake duct from the intercooler to engine inlet.
Tubing segments are tack-welded...
Tubing segments are tack-welded together for a fit check; then a solid bead is used once proper fit is established.
Once proper fit and routing...
Once proper fit and routing are confirmed, the rest of the welding is completed. Check out the craftsmanship.
'69 Mustang L-Code SportsRoof
Owner: Mike Winterboer, Classic Inlines, Chandler, AZ
McLearran stresses plenty...
McLearran stresses plenty of clearance between the pipe and body to prevent noise transfer. Tubing should not touch the body anywhere.
- Maaco Screaming Yellow with Gray appointments
- 273ci McLearran Racing-built high-performance six
- Classic Inlines aluminum head with high-swirl chambers
- Classic Inlines finned aluminum valve cover
- ARP fasteners throughout
- K&N air filter
- F.A.S.T digital-port fuel injection
- Classic Inlines port-injection intake manifold with six throttle bodies
- MSD 36-lb/hr fuel injectors
- Classic Inlines billet fuel rail
- Performance Distributors D.U.I. ignition system
- Turbonetics T04E turbocharger
- Yonaka Motorsports intercooler
- McLearran Racing-fabricated custom tubing and intake
- Griffin radiator from Mustangs Plus
- Classic Inlines dual-exhaust long-tube headers
- Flex-a-lite electric fan (engine-driven fan didn't fit)
- The Mustang Shop Power rack-and-pinion steering
- Opentracker upper and lower control arms
- Grab-A-Trak suspension Springs and components from Mustangs Plus
- Stam-Bar adjustable sway bar
- Edelbrock shocks from Mustangs Plus
- Baer brakes in all four-corners
- American Racing Torq-Thrust D wheels
- Yokohama radial tires in all four corners
- Centerforce Dual-Friction clutch
- JMC Motorsports hydraulic-clutch conversion kit
- Tremec World Class T5 five-speed transmission
- Randy's Ring & Pinion 8-inch differential with 3.55 Traction-Lok
- Inland Empire aluminum driveshaft from Mustangs Plus
Fabrication work includes...
Fabrication work includes installation of the bypass valve.
McLearran carefully bores...
McLearran carefully bores a hole sized to the bypass valve; then he welds the threaded plug in place.
Kelly McLearran installs the...
Kelly McLearran installs the Turbonetics T04E turbocharger. We like the craftsmanship shown here with ceramic-coated, custom-fabricated headers in black. Self-locking hardware won't come loose when the go-pedal is on the mat.
Here's Winterboer's 273-inch...
Here's Winterboer's 273-inch six with all the trimmings-a billet fuel rail from Classic Inlines and six 36-lb/hr injectors with vacuum sensing on all six ports. We appreciate the craftsmanship exhibited by McLearran Motorsports.
MSD provided us with 36-lb/hr...
MSD provided us with 36-lb/hr injectors, which will provide plenty of fuel under heavy boost. The trick is getting our F.A.S.T. system dyno dialed in with MSD's injectors. One thing you never want under heavy boost is a lean condition. This is where knowing air/fuel mixture is important before going wide-open throttle under a load. Opt for F.A.S.T's air/fuel sensing system before going to the dyno.
Team McLearran gets Winterboer's...
Team McLearran gets Winterboer's turbo six F.A.S.T. system wired up. The F.A.S.T. processor is kept inside the car behind the firewall with a rubber insulated transition through the firewall. The system is easy to install and tune. Once it's dialed in, it's trouble free. F.A.S.T. is an outstanding system for any performance application.
Performance Distributors' D.U.I. system is available for six-cylinder applications. We appreciate the D.U.I. system for its simplicity and reliability. This is aerospace-caliber stuff when you fit it with Live Wires from Performance Distributors.
Winterboer found this low-mileage...
Winterboer found this low-mileage Tremec World Class T5 transmission at a local salvage yard. The fluid was clean and there was virtually no wear and tear. You can order a new Tremec T5 for around a grand-it's money well spent when you consider how rugged these gearboxes are.
Winterboer went with the Centerforce...
Winterboer went with the Centerforce Dual-Friction clutch with its patented design, easy clutch effort, and firm grip. Because the 273ci six is internally balanced, a zero-balance flywheel was ordered.
For ease of installation and...
For ease of installation and operation, Winterboer ordered a hydraulic clutch kit from JMC Motorsports. The reservoir is fastened to the firewall. The master cylinder goes in place of a Mustang's original clutch linkage.
Installed, the JMC Motorsports...
Installed, the JMC Motorsports hydraulic clutch kit is streamlined and easy to service.
The turbo six is roughed in...
The turbo six is roughed in and good to go. We get excited by how different this engine compartment is-sizzling high-tech performance from an aluminum head, fuel-injected, turbocharged, Ford six. Here's to those who just want to be different.
Alternative Induction This...
This is one induction package being planned for production at Classic Inlines. Check out the large 70mm throttle body and port fuel injection. Not much was known at press time about this induction package. As soon as information becomes available, we'll bring it to you.
Hot Six Performance Source...
Hot Six Performance Source
If you're dreaming about building a six, Winterboer has lots of information for you. If you have a generous budget and want to build something fun, exciting, and different, check out Classic Inlines' Web site at www.classicinlines.com.