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A Rotary Wildflower in Arizona: Tim Eull's Mazda RX-7 R1

The deserts of Arizona are known by many as vast expanses of arid land, jagged mountains, nocturnal animals and cacti as far as the day is long. While that may be true, there’s a perfect window when the weather isn’t too hot nor too cold, the days are getting longer, and swaths of wildflowers come into bloom. It was during this time we caught up with Tim Eull to take a closer look at his wildflower-esque Competition Yellow Mica ‘93 RX-7 R1.

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Before diving in, a bit of context is in order. In 1992, the FD RX-7 was released in the United States. This would be the last generation RX-7 to make it to American shores before Mazda replaced it with the RX-8. During its time on showroom floors, only a touch less than 14,000 were sold nationwide, and of those, only 350 were R1-spec Competition Yellow Mica. Fast forward to 2000, seven years after the car rolled off the dealer lot, and an Ebay listing for an R1 in Hawaii caught the eye of a younger Tim Eull. Without even being able to see the car in person, he bought it and had it shipped to Arizona by way of the port of Long Beach. After a little over a month in transit, the car was finally delivered and Tim joined the rotary brotherhood.

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Exterior Beauty, Without Widebody

In the 18 years since, the car has been maintained and modified, but never irreversibly. Having resisted the temptation to go with a widebody multiple times, the exterior still has more than a few modifications worth mentioning. Up front, the RE Amemiya carbon fiber hood has been paint-matched to the body, its large vents showing off the ruby red strut bar we’ll get to in a second.

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Around the side are FEED door handles and Shine Auto side skirts, both made of carbon fiber, of course.

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In the rear, a tasteful Shine Auto street-style diffuser adds just a touch of angularity to the otherwise round haunches. Nestled on the right side of said diffuser is an RE Amemiya Gravity Muffler pumping out that signature rotary sound, and right above are a set of 1999 JDM taillights from an RX-7 the U.S. never got to have.

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Wheels and Tires

Before heading back up to the engine bay, the wheel and tire package requires a second look. After lowering the car two inches all around on Tein Flex coilovers, a set of Work Meister S3 wheels were fitted with meaty Nitto NT05s, 18x10 inch wheels and 275/35R18 tires in rear, with 18x9 inch rims and 245/40R18 NT05s up front. The result is a perfect middle ground between show and go, an athletic canyon carving setup that shines up well for taking home car show trophies.

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Engine Bay Upgrade

Under the RE Amemiya hood is a testament to Tim’s love for this RX-7. The bay has been noticeably cleaned of the plastic air boxes and piping found in the stock model, but that's not all. The previously mentioned red strut bar stands out immediately, a holdover from the factory equipment found on the R1, but the ruby powder coating was a custom touch.

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Air Conditioning Intact

In place of the plastics is a one-off V-mounted intercooler Tim designed himself from a Garrett 3.75-inch intercooler core. The result is an impressively clean and effective unit that still allows for the stock air conditioning system to cool the cabin—an absolute must in Arizona.

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Turbo and Water Injection

Directly behind sits a 13B-REW powerplant, putting out around 460whp on high boost provided by a single Blowzilla TD61 turbo in place of the factory twin-turbo setup. Not pictured is the remote water injection pump and custom two-gallon tank keeping the notoriously hot rotary in check, another piece built by Tim himself.

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Ultimate Interior

We could spend an entire day discussing the engine work Tim and Glen Weaver of Arizona Rotary Rockets have put into this example of an RX-7, but we’ll leave the rest to the extensive spec sheet found below this article. For now, we'll turn to the interior. Starting with the obvious, there’s more carbon fiber to be found. Torasport yellow twill carbon fiber envelops the white RE Amemiya cluster and continues down the center console, while an RE Amemiya column gauge pod completes the functional cockpit.

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On the passenger dashboard resides RX-7 FD3S project manager Takaharu Kobayakawa’s signature, along with the four FD3S design goals: direction, spirited, alluring and excitement. This is the JDM equivalent of Carroll Shelby signing a Cobra, and as such, certainly deserved its own photo.

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A pair of reclining Bride seats, backed in yellow twill carbon fiber, of course, help on long hauls, of which this car is a veteran. For 17 of the past 19 years this car has made the 700 mile round-trip from Phoenix to Fontana and back for SevenStock, SoCal RX Club’s national rotary mecca. The only two years it didn’t make the desert crossing along Interstate 10 was while the engine was being rebuilt one year, and another year when Tim procured a vendor space and couldn’t haul his wares in the limited cabin space of the FD.

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It’s easy see why the RX-7 holds such a special place in the automotive zeitgeist: the “magic doritos” of the rotary engine, the timeless exterior design, the cultural references of Initial D and Fast and Furious. So while we can’t say the same for the wildflowers of Arizona, it’s a good thing this Mazda will be available to appreciate for seasons to come.

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Specs: 1993 Mazda RX-7 R1

OWNER Tim Eull
HOMETOWN Phoenix, AZ
PERFORMANCE Blowzilla TD61 turbo; Ground X lower intake manifold; Greddy aftermarket elbow, Profec B Spec II boost controller; Power FC aftermarket ECU; J&S Safeguard knock sensor; Innovate LM-1 wideband; 450cc RX-8 Renesis primary injectors; 1000cc Injector Dynamics secondary injectors; Arizona Rotary Rockets aftermarket fuel rail, turbo manifold; Weldon fuel pressure regulator; Bosch 044 fuel pump; HKS twin power; coil relocation kit; Stainless oil metering pump lines; Tweak-It aftermarket water pump pulley tensioner, self-designed and fabbed AST, Vmount intercooler; Koyo radiator; MSD ignition wires; Tial dual 38mm wastegates, blowoff valve; SR Motorsports resonated midpipe; RE Amemiya gravity muffler; Competition Clutch lightweight flywheel; Gotham Racing short shifter; engine strut brace; Momo carbon look shift knob; Cusco red anodized e-brake button; Aquamist water injection; ruby red powder coated factory strut bar; Power Slot slotted front and rear brake discs
SUSPENSION Tein Flex with EDFC electronic controller; Racing Beat front swaybar mount brace
WHEEL/TIRE Work Meister S3 18" x 9" front, 18" x 10" rear; Nitto NT05 245/40R18 front, 275/35R18 rear
EXTERIOR RE Amemiya AD9 carbon fiber hood (paint-matched); FEED carbon fiber door handles; Shine Auto sideskirts, Amemiya style street rear diffuser; 1999 JDM taillights
INTERIOR RE Amemiya steering wheel column boost gauge holder, white gauge cluster; Bride Seats; Torasport carbon fiber twill weave interior overlays; Nardi deep corn steering wheel; Gates belts; Parts Shop Maxx EGT gauges and probes; chrome halon fire extinguisher; Takaharu Kobayakawa-signed passenger dash cover

Check out even more detail on this prime example of an RX-7 in the gallery below!

Want to know what it's like to drive a bone-stock RX-7 R1 today? We drove one to find out!

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