What starts as a fast road Mini quickly morphs into a GT3-inspired project, once Jason commits to a full Bosch Motorsport electronics package. The car keeps its Mini DNA with a steel shell, A series engine, and original uprights, but everything else steps into modern race car territory.'
Jason explains why the original five-port, non-crossflow A-series head is so restrictive and how the Kent twin overhead cam, 16 valve conversion transforms airflow and tuning potential. Moving from old school wasted/lost spark to full sequential multi-point injection with crank and cam sensing gives the engine proper control.
The team integrates Bosch ECU, power distribution module, dash, and motorsport ABS into a chassis never designed for wheel speed sensors, fabricating all mounting to suit. Packaging constraints then force a shift to inboard cantilever suspension, allowing more travel, better motion ratios, and far more chassis tuning scope than the original rtubber cone system, not that handling isn't something Minis managed better out of the box than many other cars of their era.
Originally 1275 cc, the A series is now 1430 cc and has a reworked KAD head from Jake Bain, and a total weight of 610 kg, the package is expected to reach around 200 horsepower, giving roughly 380 horsepower per tonne. To follow the build as it progresses, head to Warhorse Motorsports (@wrhrse) on Instagram.
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TIMESTAMPS
0:00 - Mini Concept And Build Direction
0:32 - Electronics Inspiration
1:32 - Keeping The Mini DNA And Choosing The A Series
2:04 - Twin Cam Conversion
2:24 - Gearbox Choice
2:45 - Original Five Port A Series Head
3:20 - Kent Twin Overhead Cam 16 Valve Head
3:52 - Lost Spark To Sequential Injection
4:22 - Full Bosch Electronics Package Integration
4:44 - Retrofitting Wheel Speed Sensors
5:07 - Why Cantilever Inboard Suspension?
6:16 - Original Rubber Cone Suspension Explained
6:47 - Retaining Mini Handling With Modern Hardware
7:13 - Uprights, Alloy Components And KAD Brakes
7:32 - Engine Specs And KAD Head Details
7:55 - Jake Bain Cylinder Head Work
8:18 - Power Expectations From The 1430 cc A Series
8:45 - Weight Figure And Power To Weight Estimate
9:07 - Future Engine Plans
9:13 - Where To Follow The Build
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