Jeff's Automotive - RX-7 Road Racing
Puyallup, Washington.
(253) 537-8075

Specialist in the Preparation and Racing of Mazda RX-7ís & Miata's

PRO-7 Spec-RX-7 ITA Ė ITS - & SPEC Miata Classes.

Hi, Iím Jeff Clark, owner and proprietor of Jeffís Automotive in Puyallup, Washington.  I build, race and rent Mazda RX-7s using 12A and 13B rotary engines.  I have been in the business of providing maintenance and repair services for Mazda vehicles for more than 15 years Ė specializing in the rotary engine.  For the last 11 years Iíve been active in racing 1st generation RX-7s in SCCA and ICSCC racing programs in the Pacific Northwest.  Cars that I have raced, rented or prepared have won ten season SCCA or ICSCC championships in the last four years. 

I offer a full range of services including Spec built RX-7s race cars, stock and performance parts plus a PRO-7 Race Rental program covering everything from single race weekends through full season schedules.  

Hopefully the information at this site will be useful to you and generate an interest in amateur road racing which is making a come back in the United States.

Under Construction !!!

Getting Started

RX-7 Race Programs

PRO-7 Race Rentals

Racing Links



Whether you're thinking about going road racing for the first time or maybe you're thinking about changing classes, what car do you buy? Obviously this will depend on what you can afford, and/or what your knowledge and experience level might be with any particular car.  I canít necessarily tell you the best car for you to buy to go racing, but I can explain why I think the Mazda RX-7 is an ideal candidate for the both the novice and experienced road racer.
  • Fun and competitive.      First and foremost the car is fun to drive. Other cars are faster and some are slower, but I would rather have one in the middle. A car may be fast for it's class, but a slower car in its usual run-group. I don1 think it is much fun to be watching my mirrors more than the track in front of me. The PR0-7class runs with Club Rabbit and other competitive cars of similar speed capability.
  • Competitive class.        You don't want to be the only car in your class. The more the merrier and the more fun you will have during your weekend of racing.  PRO- 7 is in its third year and growing fast.
  • Inexpensive.       Important to everyone, the less expensive the better.  Inexpensive to get into and cheap to maintain is what we are talking about.  A base car can be purchased for less than $1500.  Cars needing engine work can be found for less than $500 in street condition.  A race ready competitive PR0- 7 car can be purchased starting for around $5000.
  • Low maintenance.      Rebuilding motors every few months and buying tires every few races does not fit the rule of low cost.  A refreshed12A motor can be expected to last at least 2 seasons.   Aggressive driving at the red line will decrease engine life.  DOT tires on stock wheels are the spec with race compound tires available.  Using DOT Race compound tires you will probably use a set about every 5 Ė 6 races.
  • Readily available parts.      After-market and used parts are a good thing to be able to get whenever you may need then. 1st Gen RX-7s are plentiful and many are near the 15Ok mileage threshold many people decide to upgrade to a newer car rather than rebuild the engine. Thus, a ready supply of vehicles exists for low cost replacement parts. This is not a car that you win be afraid to get banged up.  Yes, it does happen occasionally, and when it does, you can go to just about any used parts yard and get just what you need. There really isnít anything complicated about the car.
  • Available resources.      Having someone local to call if you are having problems putting things together in the garage, is a BIG help.  I carry an adequate supply of spare parts and expendable items available at each race I attend. The RX- 7 racers are a very competitive group but are more concerned with getting you onto the track to compete as opposed to seeing you miss a race because of mechanical problems.


RX- 7 racers are about the friendliest, most down-to-earth bunch of people you will ever meet.  If you are interested, let me know. I will be glad to help you get involved. I have six PRO-7 RX7s for rent, so if you wish to try it out at a drivers school, or schedule a season program contact me.





The obvious choice as an entry level to road racing for a new member with a tight budget is Club Racing, either SCCA, ICSCC or N.A.S.A. There are many classes and many competitive cars available to choose from but the first time racer usually starts with a limited budget. 

PRo-7 or Spec RX-7 is a racing series for all 1st generation Mazda RX-7s (model year 1979 to 1985). Car preparation is limited to installation of required safety equipment, race suspension components and DOT race tires.  ďStock'" engine, carburetor, transmission and rear end components meeting the class specification are required. The intent of the PRo-7 series is to provide an affordable opportunity for people to experience the exciting world of road racing utilizing late model sports cars with limited modifications. The series provides the opportunity for fun, exciting, close competition without the high expenses of other series and classes.  

With the recent growth of the PR0-7 or Spec-RX7 class, there are more RX-7s to race with than ever.  Spec is great, because every car is prepared equally .You shouldn't get beat by someone else's money, just their driving ability. ITA gives you a little more freedom in how you prepare the car and still remains competitive.  

The PRO-7 configuration may be run in Sports Car Club of America (SCCA), National Auto Sport Association (N.A.S.A.) and International Council of Sports Car Clubs (ICSCC) race series.  

Pacific Northwest region tracks Locations include Bremerton Raceway, Mission Raceway Park, Portland International Raceway, Seattle International Raceway and Spokane Raceway Park. 

Mazda Rx7ís (built to PRo-7 SPECS) run in the NA.SA. Pro Sedan 2 class.  

Tracks in the San Francisco region include Sears Point, Laguna Seca, Thunder Hill and Buttonwillow.  

PRO-7 spec cars run in the SCCA Improved Touring Category class. PRO-7 spec cars compete in the ICSCC Group 2 Production cars.



PRO- 7 specifications (need word attachment doc)

Cost to Race (see reference PDF doc)

2002 Race Schedules (see ICSCC and SCCA Links)


< Insert ICSCC member Club Logo and web links >


Winning Pro-7 Race Cars for Rent!

We offer 6 competitive Pro-7 cars for rent backed by years of race preparation experience.  Rent for one race season, also available for schools and novice programs.  New for 2000 - We have helmets, suits and gloves available for rent.  

Call Jeff at (253) 537-8075 or e-mail at

SCCA & ICSCC PRO- 7 legal cars are available for single or season rentals. Cars are prepared and delivered to the track race really. Full pit support and equipment maintenance is provided throughout the race weekend. Utilizing available safety equipment services drivers are offered a complete " Arrive & Drive" capability.  

Single race rentals start at $650

Season leases are based on the schedule and number of races planned.


Spec RX- 7 Rental - "Arrive and Drive" 

       Single Race Rentals

       Season or Series Programs


Race School & Novice Programs

    Car Rental

    Individual Instruction

    Safety Gear Rental (Suits, Gloves, Boots and helmets)


RX- 7 Car Preparation

    SCCA and ICSCC Spec Cars

    Engine Preparation and Rebuilds

    Racing Parts and Services

I also offer complete car preparation services including "Turn-Key" Spec built cars.


Sports Car Club of America   (SCCA)

No matter what your motorsports interest, there's a program to match in the Sports Car Club of America. Whether it's competition driving, working the course or race administration, SCCA puts you in the middle of the action.

Northwest Region Sports Car Club of America

Racing: In 1961, first contract was negotiated with Pacific Raceways Inc. (now Seattle International Raceway) for race events, an association which has continued through the years. Low point was in 1976 when our racing year ended early due to hard-wire communications line failure. Regional Races were held at Shelton Airport until 1970 and at the Olympia Airport from April 1983 through September 1989.

International Conference of Sports Car Clubs (ICSSC)

The International Conference of Sports Car Clubs Inc. (ICSCC, or 'Conference') is an association of independent sports car clubs in the United States and Canada. It is a regulatory and administrative organization providing the basic guidelines for organized sports car racing in its membership area.

Cascade Sports Car Club (CSCC)

The Cascade Sports Car Club began life in 1953 as the 4 Cylinder Sports Car Club of Oregon with a total membership of fifteen.  The club name was changed to Cascade in May of 1956 and membership has since grown to more than 350 members.

International Race Drivers Club (IRDC)

The International Race Drivers Club (IRDC) was founded in 1970 and is the western Washington area member club of the International Conference of Sports Car Clubs (ICSCC). The ICSCC was formed to provide a less expensive alternative to the sports car enthusiast whose interests lay in regional competition. It allows the average person the opportunity to become a competitive race driver on a local level.

I/O Port Racing Supplies

I/O Port Racing Supplies is located in Lafayette, California and was established in June of 1988. Specializing in safety equipment, I/O Port has grown from selling helmets and suits at local race events to having a 20-page catalog and world-wide sales. We are constantly expanding our inventory to give you a more comprehensive source for racing goods. Recently we added a new book called Civic Duty, mirrors, steering wheels, more helmet graphics and Hot Lap Timing Systems. We now have the new SA-2000 rated helmets.

SpeedWare Motorsports

Our six thousand square-foot building houses a complete shop with the capability to build an entire car from the ground up.

Our retail showroom is second to none. And we now offer products through our web site. Authorized dealers of Sparco, Kinesis, BBS, Recaro, Arai, and much more.

We sell everything from official racing sportswear and artwork to safety equipment and accessories of every kind for your car or truck.

We cater to everyone from the elegant to the extreme, and the hard core enthusiast.

SpeedWare Motorsports offers something for everyone.

AstraTech Racing Technology

Free with the last issue of Racecar was a demonstration disk of the latest racecar data analysis software from the UK company, AstraTech. Over the past five years or so, AstraTech has built a reputation for supplying easy-to-use data acquisition systems. The company's products have become popular amongst teams that require accurate performance data, but lack the budget or in-house expertise to make use of more sophisticated and expensive equipment.

Auto Craze Parts & Accessories

They carry a wide variety of products and are located;
100 S.E. 1st Street, Unit 40 - Miami, Florida 33131 - Tel:(305) 358-9021 - Fax:(305) 358-4527

Auto Meter

Auto Meter is an American owned and operated company and we greatly appreciate that you have made us America's No. 1 racing instrument manufacturer. Since our beginning in 1957, we have devoted a tremendous amount of time and resources into maintaining a strong leadership role. We are serious about manufacturing the absolute best instruments in the automotive aftermarket. Our commitment to NASCAR Winston Cup, Busch Grand National, NASCAR Craftsman Series, NHRA and IHRA helps to insure that drivers can rely on the products we produce. Our involvement allows us to provide innovative, useful instruments for all classes of racing. After all, Stock Car Racing, Drag Racing and Street Rodding were "Born in America" and we are glad to be your partner in this exciting business.

Driven Performance

The Spec Miata class is designed to provide an affordable nationwide class in which all regions are using the same rules and regulations. This would allow for crossover region racing and possibly an end of the year runoff. Pending approval from the SCCA competition board and other sanctioning bodies, this class could also be made into an Autocross class. Cars could compete in different forms of racing, and drivers could work their cars from autocross forms into road racing.


The Drivers Edge Autosport

My focus, and the driving (no pun intended :)) force behind The Driver's Edge is to provide a place where car enthusiasts can congregate and discuss auto - related business, swap advice, and, hopefully, purchase enthusiast - oriented automobiles. We specialize in BMW M3s, M5s, 325iSs, and Porsche 911s, as well as having access to just about anything else you might want. Tell us what you want and we'll find it for you!

DSP Suspension Design Software

Suspension technology is highly confusing, and there's a reason for this: It is highly complex, and there is rarely any one "right" answer. Even many aftermarket manufacturers can only guess at the optimum spring and sway bar rates for their performance suspension kits. And what they build may not be what's best for you. But many of the common mistakes in suspension design are completely avoidable. That's what this software is designed to help you with. This software makes all the complicated calculations needed to design the optimum springs and sway bars for you ó or to help you decide which of the aftermarket components are best for your needs.

Earl's Performance Products

At Earl's, we are very proud of our track record. (Pun fully intended)

We feel this record has been the direct result of our setting the following goals when we started supplying products directly to the racer from our Lawndale retail store over 30 years ago:

  1. Supply the best product
  2. Offer the best value (not necessarily the cheapest price)
  3. Provide the best service
Today we still strive to achieve these goals through a selected network of distributors around the world.


Federal Hoses

Federal Hose Manufacturing, Inc. is a recognized leader in the manufacture and distribution of flexible interlocking metal hose, reinforced and non-reinforced industrial ducting, and silicone hose. Since the founding of our company in 1921, Federal Hose Manufacturing has been an innovator in developing and providing customers with high-quality products.

Federal Hose carries a complete line of durable, dependable hoses and ducting, available in a variety of sizes, materials and colors. Our products are produced for a variety of applications, such as material handling, ventilation, vacuum, general purpose and specialty applications.


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Copyright 2002, all rights reserved by
Jeff's Automotive Puyallup, WA. USA