Enhancing Your Midget Car: Performance Upgrades and Modifications

Understanding Your MG Midget Performance Potential

The MG Midget offers excellent potential for performance enhancement. With its lightweight body and simple mechanical design, even modest upgrades can yield significant improvements.

At Rimmer Bros, we have supplied quality MG Midget performance parts since 1982, with our team bringing over 1000 years of combined experience to help you make the right choices for your classic.

Engine Performance Upgrades for MG Midget

Carburetion and Fuel Delivery Improvements

Your Midget's standard SU carburettors can be tuned for better performance. Replacing them with larger versions or adjusting the needles provides noticeable power gains. A polished manifold paired with improved carburettors allows better air and fuel flow, boosting performance across the rev range.

Cylinder Head Modifications

A ported and polished cylinder head significantly improves your Midget's breathing capabilities. This modification, when combined with larger valves and performance camshafts, allows your engine to draw in more air and fuel while expelling exhaust gases more efficiently.

Performance Camshafts and Timing

Installing a performance camshaft alters valve timing and lift, creating more power and torque. For road use, we recommend a mild cam that maintains low-end torque while adding top-end power.

Suspension and Handling Enhancements

Upgraded Shock Absorbers and Springs

Modern adjustable shock absorbers paired with uprated springs transform your Midget's handling. These components reduce body roll and provide better control over rough surfaces. A slightly lowered ride height also lowers the centre of gravity, improving cornering stability.

Anti-roll Bar Improvements

Fitting a thicker front anti-roll bar reduces body lean during cornering. Adding a rear anti-roll bar (not fitted as standard) further improves handling balance and reduces understeer, making the car more responsive to steering inputs.

Polyurethane Bushes

Replacing rubber suspension bushes with polyurethane alternatives reduces flex in the suspension components. This creates more precise handling and improved road feel, allowing you to better exploit your Midget's potential.

Rear Lever Arm Conversion Kit

Upgrading from the original rear lever arm dampers to a telescopic conversion kit is a game changer. The SPAX CKX telescopic conversion kit replaces outdated components with adjustable dampers that allow fine-tuning of both bump and rebound stiffness, without any dismantling. This adaptability lets you tailor the suspension to your driving style, whether for spirited road use or occasional track days. The result is sharper handling, improved ride control, and significantly more driver confidence and enjoyment.

Gearbox and Differential Modifications

A close-ratio gearbox keeps the engine in its power band between shifts, making better use of available power. For those seeking maximum acceleration, a lower final drive ratio offers quicker acceleration at the expense of higher cruising revs.

Electronic Ignition Conversion

Converting from points to electronic ignition provides more consistent spark timing and improved reliability. This modification eliminates the need for regular adjustment and ensures optimal ignition timing under all conditions.

Why Choose Rimmer Bros for Your MG Midget Performance Parts

Our 105,000 square foot warehouse in Lincoln houses over 2 million parts across 52,000 part numbers. For MG models specifically, we stock an extensive range of performance components from OEM and quality aftermarket manufacturers.

Our parts advisors have unmatched knowledge of MG Midget models and can guide you towards the most effective upgrades for your goals. Whether you want better everyday performance or are building a competition car, we provide the right parts and advice.

With daily shipping to 195 countries worldwide, you can access our expertise regardless of location. Our computerised stock control system ensures parts availability, while our efficient picking and packing operation processes over 825,000 parts annually.

Getting Started With Your MG Midget Upgrades

When planning modifications, consider how you use your car. For weekend pleasure drives, focus on handling and braking improvements. For regular touring, a balance of performance and reliability works best. Track day enthusiasts will benefit from more aggressive engine and suspension modifications.

Start with fundamentals: ensure your Midget is mechanically sound before adding performance upgrades. This provides a solid foundation and allows you to appreciate the improvements each modification brings.

Our team is available to discuss your plans and suggest the most effective upgrade path for your budget and goals. With over four decades of experience serving classic car owners, we understand how to achieve meaningful performance gains while maintaining the character that makes your MG Midget special.