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Monday 11am - 7pm Tuesday 11am - 7pm Wednesday 11am - 7pm Thursday 11am - 7pm Friday 11am - 7pm

Defined Autoworks

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United States
Pataskala, OH
Defined Autoworks

Defined Autoworks is a specialized company providing race car and high performance automotive work. Known worldwide for our rotary prowess.

02/03/2026

Defined Autoworks n/a special. Semi peripheral port, V2 billet machined slide throttle ITBs, ceramic apex seals, scalloped lightened rotors, dynamic balanced. Defined 3 stage drysump system. External coolant feed.

01/02/2026

Happy new years! First car to run this year is 20b semi peripheral port, big studs. Lots of custom parts and large turbo. Off to a good beginning.

08/04/2025

Searching for a rear hatch glass for a 1993-95 Rx7. If anyone has please reach out. Thank you!

02/12/2025

Next turbo 26b 4-rotor ready to ship out. All new Rew irons and housings. Streetport, quickspool exhaust ports, 9.0:1 compression REW rotors, dynamic balance, E+J apex seals, studs in 17 positions, Henshaw racing billet drysump and billet oil plate. Ready to make some jammies!

02/08/2025

My last post went into a very negative direction from some members in the rotary community. Even very nasty accusations. Lets set the record straight- I've been in business for 19 years, built somewhere around 650 rotary engines. I've never scammed a single customer. On Lord Jesus himself I'm not going to start now. The person manufacturing eccentric shafts is indeed retiring. The future now looks bright and he will be staying on with the new owners until things run smooth. Delays in manufacturing are proposed to be brief. This is very new information. None of what I previously stated was false or aiming at personal gain. It was to provide people a guarantee purchasing an item with a *prior* unpredictable future. I hope for everyone's sake it will continue to be predictable moving forward.

02/02/2025

26b for Diego Macchi picked up a few months back. Featured a nice streetport, Rx8 rotors, dynamic balance, Defined Autoworks drysump. They were very happy!

02/01/2025

Two 13b-rew's going out the door. One to Texas, one to Hawaii. Red engine- Streetport, scalloped rotors, lightweight modification. Dynamic balance. Oversize Tremain bolts. Coolant passage modifcations. Natural color engine- Half bridgeport, dynamic balance, brand new irons, housings.

01/30/2025

Full peripheral port race short-crank 20b built for Matt Ripley last year. Using Defined Autoworks V2 slide throttle with billet cnc intake runners, wiggins bolt-less connection. Defined Auto 3- stage drysump system. 3mm Ianetti seals, ultra light 9.7 rotors. Race bearings. All the tricks. Custom 321 grade stainless header with equal length to 1/8 inch. This should beat my old 475 rwhp 20b record. Already logged impressive torque/hp numbers.

01/29/2025

Little while ago this beauty headed off to Canada to find a home in a landspeed car. 12a based 4-rotor, the rotor housings themselves are from the original SCOOT racing 24a. Full work we performed- Ianetti ceramic seals, retained rotor gears, ultra lightweight rotor modification, complete dynamic balance, race rotor bearings, 3- window stationary gears, full peripheral port, Defined auto 3-stage HTD drysump system, Defined Auto cnc slide throttle ITB's and custom intake. Hot zone cooling modifications.

03/08/2024

Have a few engines on the shelf ready for purchase. These are fully prepped and will be sold assembled with all new seals. They are left un-assembled so the customer can choose additional work before being built (bridgeports, lightweight rotor mod, scallops, oversize tension bolts) I do not have photos of every engine, but will upload soon.

(Pending Sale) 20b D-series. Streetported intake and exhaust, near new 13b-rew housings. Full dynamic balance. $20,000

13b-rew, brand new center iron, excellent condition housings, streetported, dynamically balanced, auto rear counterweight. $10,000

13b-t series 5. Cermet coated side housings and rotor housings, 8.5:1 compression rotors, streetported, dynamic balanced $8000

13b GSL-SE, stock ports (can be streetported) good condition housings and irons. $5000

02/01/2024

Here is the Atom bomb. I'm breaking silence finally, years and years in the making. Video series coming soon. Yes this is a real Rx-792p. Many original parts. This will be powered by Defined Autoworks highest hp naturally aspirated 4 rotors in the world. Same spec as my personal Rx7 (780hp currently). Will be using a fully race engineered chassis. Top aerodynamics. AND BEST NEWS you'll have the ability to buy one and experience the LEGEND yourself. Final pricing pending. 1st one driving target of September this year. Keep an eye on definedautoworks.com for ordering info and options!

Address

12157 Broad Street SW
Pataskala, OH
43062

Opening Hours

Monday	11am - 7pm
Tuesday	11am - 7pm
Wednesday	11am - 7pm
Thursday	11am - 7pm
Friday	11am - 7pm

Website

http://www.definedautoworks.com/

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