Conisbrough/Services/Garages/John Sleath Race Cars Ltd

John Sleath Race Cars Ltd

Discover expert car repair and high-performance engine tuning services at this highly-rated Doncaster garage.

About

John Sleath Race Cars Ltd is a highly-regarded automotive specialist located at Carr Grange Farm in Conisbrough, Doncaster. Known for its expertise in high-performance vehicles and engine tuning, this garage consistently earns praise for its professional service. With an impressive Google rating of 4.8 out of 5 stars from 25 reviews, it's a trusted destination for car enthusiasts.

The team at John Sleath Race Cars are renowned experts, particularly praised for their in-depth knowledge of V8 engines and intricate tuning work. Customers frequently highlight the no-nonsense advice, excellent work ethic, and ability to achieve results that surpass expectations. Whether it's complex engine projects, custom mapping, or general automotive maintenance, the skilled technicians provide a dedicated and high-quality service tailored to performance and precision.

Visiting Information

John Sleath Race Cars Ltd is open Monday to Saturday from 8:00 AM to 5:00 PM, closed on Sundays. The premises offer excellent accessibility with wheelchair-accessible parking and an accessible entrance, ensuring convenience for all visitors. For payment, a range of options are available, including credit cards, debit cards, and NFC mobile payments.

4.8

from 25 reviews

Google Reviews

Reviews from Google Maps.

Showing 5 of 25 reviews from Google Maps.Last updated 8 February 2026.

Anonymous

5/5

7 years ago

V8 engine experts. Great service， no nonsense advice. John has helped me complete and test a Chevy V8 with individual throttle bodies.

Anonymous

5/5

2 years ago

Top nice guy and he knows his stuff tuned my beast today well recommended 👌

Anonymous

5/5

8 years ago

Yesterday I went to get my car mapped at John Sleath Race cars. This is my second visit, the first time being some 5 years prior with a previous project. I was happy to discover that the level of service, knowlage and work ethic was excellent and the results surpassed my expectations. With a brand new project having covered 0 miles, a few teething problems arose due to the way I had installed the new parts. John was very knowledgeable and quick to come up with a solution. My car is a 2000 Golf 4 motion with an R32 turbo running Haltech management. John has so much knowledge and experience he can really turn his hands to any motor/software combination and deliver the best result.

Anonymous

5/5

6 years ago

Top guy. Honest, down to earth, knows what he's doing. Lovely set up and nice family. Sorted a small issue with my car my car but luckily I managed to do most of it before. Well worth knowing and one if the guys in the V8 business to respect. If you're struggling with holley carbs or V8s in general...he's your guy.

Anonymous

5/5

6 years ago

Great guy. Tuned up the old BMW nice. Knows his stuff which is a must.