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RX7 Build
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Latest news & features
The latest motoring news and features from around the web.
2026 Aston Martin Vantage S Revealed: More Power, But Softer Suspension
8th July 2025, 11:01pm
Aston Martin Vantage S Brings More Power, More Sharpness And More Stitching
8th July 2025, 11:01pm
Aston has added more power to its overpowered 2dr: meet the 671bhp Vantage S
8th July 2025, 11:01pm
The new Range Rover SV Black is a £188k cheery, friendly V8 SUV
8th July 2025, 11:01pm
Stephen Miller Says Immigrants Make Traffic Worse, But Of Course Stephen Miller Is Wrong
8th July 2025, 10:19pm
Tools
Corner weight calculator
Calculate your car's corner weights and cross weights using our easy-to-use calculator.
Drivetrain horsepower loss guestimator
Estimate your drivetrain loss and calculate your engine's wheel horsepower using our simple calculator.
Dyno correction calculator
Correct your engine's power output for different atmospheric conditions using our easy-to-use calculator.
Engine displacement calculator
Quickly calculate your engine’s displacement using bore size, stroke length, and cylinder count. Get instant and accurate results with our easy-to-use tool.
Power-to-weight calculator
Power vs. weight matters! Use our calculator to compare data and see which one delivers the best performance.
Supercharger pulley ratio and boost calculator
Optimize your supercharger setup with our pulley ratio calculator - instantly estimate boost levels, RPM limits, and performance gains for your build!
Torque to horsepower calculator
Use our torque to horsepower calculator to find your engine’s power output. Just enter torque (lb-ft) and RPM for instant results.
Turbo boost pressure calculator
Calculate the required turbo boost pressure for your engine by providing the engine's naturally aspirated power and your target horse power.
Vehicle speed calculator
Calculate your vehicle’s top speed in each gear by entering the gear ratio, engine RPM, and tire size.
Wheel & tyre fitment calculator
Visualise different wheel and tyre options by comparing the tyre size, wheel width and wheel offset.
Motoring features
Behind the barriers: 11 fascinating Nürburgring facts
6th January 2025, 9:26am
The world’s best driving roads
20th December 2024, 7:38pm
The Lister Storm: The Madcap Supercar of Dreams
18th December 2024, 10:07am
5 Reasons why we love the Mazda RX7
4th November 2022, 10:28am
The most iconic movie and TV cars of all time
4th February 2022, 10:54am
Our favourite retro supercars from the 90s
4th January 2022, 5:02pm
More features
More news from around the web
Stripped Oil Drain Plug? Here's How To Remove It
8th July 2025, 10:05pm
2026 Lexus RZ Isn't Quite There Yet
8th July 2025, 10:00pm
Adorable Fiat Topolino Vilebrequin Collector's Edition Is A Beachy Collab With A Swimwear Brand Founded By A 1970s F1 Photographer
8th July 2025, 9:17pm
Ford's Newest Incentive Is Even Better Than Employee Pricing
8th July 2025, 9:00pm
Lucid Shatters World Record With 749-Mile Drive On A Single Charge
8th July 2025, 8:14pm
What Makes F1 Cars Spark On The Track?
8th July 2025, 8:05pm
The Mazda RX7 FD Build Diary
Getting her on the road, or not
23rd June 2023
Replacing and upgrading the braking system
4th May 2023
Wheel stud troubles
3rd April 2023
Stripping out the Bose sound system
17th March 2023
Fitting a fog light with a reversing camera bonus
20th January 2023
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