History-

Defined Autoworks is a company recently constructed and created to meet the exacting criteria of customers today. With the fast and furious age dying out, many in the car industry say that business is slowing down. As the sheer volume of these so called "enthusiasts" have indeed died down, the REAL car guys are bigger than ever. This type of customer (yes, this is you) has been around the block a few times, has seen lots of different stuff, and desires that "next level" of true hardcore parts and performance. Enter Defined Autoworks. We are merely a small shop, being handed down as a family business of over 30 years. The original owner, Ken Carswell, was at the forefront of rotary vehicles. Being one of the very few who was actually trained by the Mazda program to rebuild the rotary engine. Starting this business in 1976, his knowledge and rebuild skills were later passed down to Logan Carswell (GtoRx7). After 9 years of building rotary engines, and putting together many unique cars, Logan decided it was time to put some performance into a proven business. With the help of skilled driver/mechanic and good friend, Peter Chhuom (S14.3BRE), a branch was formed to serve the die-hard community. And we plan on continuing to serve this community for many years to come.

Services-

As a new company, more new and high quality products will be coming out as time goes on. At our shop here in Ohio, we can perform any type of custom work, or even just simple installations. Being very well versed in putting together full race rotary engines, to basic rebuilds. Even complete one-off stainless exhaust systems, intake manifolds, engine swaps, race suspension setup, stand-alone installs, and full dyno tuning are just some of what can be done in-house. We always love to take on a challenge, and will not rest until the problems are solved. We enjoy coming to work each day, and take great pride in our customer service, and support.

Products that are going to be available in the near future-
(and can be ordered now, on a per oder basis)

--Full 321 stainless header for the 13B, fitting 84-91 mazda Rx-7's
V-band version
Two bolt flange version

--Full 321 stainless headers for the 12a, fitting 79-85 mazda Rx-7
V-band version
Two bolt flange version

--Full 321 stainless header for the 20B mounted in the 93-95 Rx-7
V-band version
Two bolt flange version

--Mild steel header for the 20B mounted in the 93-95 Rx-7
V-band version
Two bolt flange version

--Custom intake manifold for the 13B 6-port, with 4 throttle bodies

--Custom intake manifold for the 13BT, with 4 throttle bodies

--Custom intake manifold for the 13B-rew with 4 throttle bodies

--Custom intake manifold for the 20B side-port, with 6 throttle bodies

--Custom intake manifold for the 20B P-port with 3 throttle bodies.

--Alternator relocation bracket, keeps p.s, fitting 93-95 rx-7

--Alternator relocation bracket, keeps A/C, fitting 93-95 Rx-7

--Alternator relocation bracket, keeps p.s., fitting 86-91 Rx-7

--Alternator relocation bracket, keeps A/C, fitting 86-91 Rx-7

--Machined waterpump outlet, low profile, fit the 93-95 waterpump

--Machined waterpump outlet, low profile, fits the 87-88 waterpump

--20B conversion kit for the 86-91 Rx-7

--Turn key 13B-re n/a engine, street port with stock intake, exhaust, EMS wired 215-230rwhp

--Turn key 20B n/a engine, street port, with intake, exhaust, EMS, wired 350-360rwhp

--Turn key 20B n/a engine, p-port, with intake mani, exhaust, EMS, wired 420-450rwhp

 

Pix of the ~ Custom intake manifold for the 13B-rew with 4 throttle bodies?

 

You will see the prototype in the near future on my personal race car. Detailed pictures will be provided soon.

 

Can't wait to see this ~

 

+1 Pics please mister.

 

Any word yet?

 

What size pipe on 321 stianless headers, 12a, & 13b? How long are the runners? Are 1 5/8" or 1/ 3/4" available?

 

The length and diameter can be built to your specs, or we can build one biased off the engine's needs.

 

Thanks for the quick reply. Finally someone to make a good unit for non-drag race road runners.
Doc-Watt

 

What would you think of charging for the Turn key 20B n/a engine, street port, with intake, exhaust, EMS, wired 350-360rwhp.

 

Having built rotor motors from 74 -89, I also was in on the early development of performance engines. Contrary to popular belief is that most header systems today are built for trubo's. As a road racer, where acceleration, decelleration and lots of shifting comes into play, not a drag racer, torque over a wide rpm range beats higher HP, at higher rpm over a narrow band. On a road course if you eliminate 2 upshifts and 2 downshifts per circuit, it may reduce as much as .4 seconds off a lap time. About .1 seconds / shift.
Therefore on an NA engine, scavenging and eliminating back pulse on the intake side becomes important in increasing HP and Torque at lower speeds. My early 12a aspirated engines would develop as much as 40 HP more in the 3500 to 7500 rpm range than Rotary Engineering and Racing Beat engines. Yes, they developed more HP at the top end, between 7500 to 8500 range, (about 5-10 HP), but on a road course with the additional torque and less shifting you could get better lap times and a more durable engine. As a street engine, you could put it in 5th gear at 1500 rpm and not get any bucking or bogging with proper throttle control.
That is why I used 1 5/8", 100+" primaries on the 12a and no bigger than 1 3/4", 100" primaries on the 13b. They worked great. Most of these engines ran above 5,000 feet elevation in Colorado and performed great at 10,000 feet. We took this approach and made several engines for experimental aircraft, which worked well.

Just food for thought. At 70 years of age, maybe some of the younger generation can take advantage of real experience.

Doc-Watt

 

What are the price ranges on some of those intakes? Or is that decided on per application and basis of the request?

 

The price is still somewhat undecided, but its safe to say the range starts at $1400 for two rotor, and goes to $2300 for three rotor. But that is a est.

 

let me know when u get the pics up

 

I would like to get an alt relocation bracket when will one be ready or do you have one now

 

Did you want the alternator relocation with the p.s., or the alternator only?