Vehicle being tested on the Rowse Motors chassis dyno

Engines · Dyno · Diesel tuning

Build it.
Measure it.
Improve it.

Engine building and development backed by controlled dyno testing, accurate data and decades of road and motorsport experience.

Performance with a purpose

Developed for the way you actually use it.

Every combination begins with the intended use. A tow vehicle, daily-driven diesel and competition engine each need a different balance of torque, response, durability and outright power.

We build the right package, measure the result and refine it until the engine performs as a complete system—not just as a collection of parts.

What we can help with

From dependable rebuilds to race-engine research.

01

Engine building & reconditioning

Measured, carefully assembled petrol, diesel and competition engines—from dependable rebuilds to purpose-developed performance combinations.

02

Diesel ECU tuning

Calibration packages tailored to towing, work, touring or performance, with the vehicle tested and verified on our chassis dyno.

03

Chassis dyno tuning

Controlled testing under load to measure power, torque, boost, fuelling and drivability at the wheels before and after changes.

04

Engine dyno development

Repeatable engine-dyno testing for race engines, component comparison, calibration and research without the variables of the vehicle or track.

05

Head, cam & induction packages

Cylinder-head, camshaft, intake and exhaust combinations selected and developed to work together across the engine's intended operating range.

06

ECU tuning & diagnostics

Calibration and fault finding for petrol, diesel and competition applications, supported by measured data rather than guesswork.

Diesel vehicle undergoing professional diagnostics and tuning

Diesel tuning

A package matched to your vehicle, needs and budget.

Using Alientech KESS3 equipment and our chassis dyno, we can tailor the calibration to the vehicle's job—whether that is towing, touring, commercial work or stronger everyday performance.

Better performanceImproved torque, throttle response and drivability where you use it.
Economy potentialA more efficient calibration can improve fuel use in normal driving when the extra performance is not constantly used.
Tailored packagesOptions designed around your vehicle, expectations, supporting modifications and budget.
Dyno verifiedOur chassis dyno lets us test under controlled load and confirm the result with real data.

Engine building & reconditioning

Clearances, components and assembly that work together.

From a standard reconditioned engine to a purpose-built competition package, we plan the combination around the required power, operating range and reliability.

  • Engine inspection, measurement and failure assessment
  • Machining coordination and precision assembly
  • Component selection and compression-ratio planning
  • Cylinder-head and camshaft packages
  • Oil, cooling, intake and exhaust system development
Performance engine being carefully assembled
Tailor-made stainless-steel performance exhaust fitted beneath a vehicle

Custom exhaust development

Tailor-made for your vehicle and your goals.

Custom exhaust systems can be developed around your engine combination, packaging, sound and performance needs. We can build, test and refine the system using measured results, proving the improvement against the vehicle's baseline rather than relying on generic claims or an off-the-shelf compromise.

Designed to suitPipe size, routing, sound and ground clearance considered together.
Built with purposeA tailored system shaped around the vehicle's intended use.
Tested and provenDyno data can confirm whether the finished system delivers a better result.

Dyno research & development

Prove what works before race day.

Engine dyno

Race-engine development

Repeatable engine-dyno testing allows us to compare changes accurately, map the power and torque curve and develop a package for the required class, circuit and operating range.

Airflow & valve train

Head and cam packages

We assess cylinder-head, valve-train and camshaft combinations as a complete system, looking beyond peak power to usable torque, stability and durability.

Breathing systems

Intake and exhaust development

Manifold, runner, throttle, header and exhaust changes can be tested methodically to identify what genuinely improves the engine rather than simply moving the power curve.

Calibration

ECU tuning

Fuel, ignition, boost and other strategies are calibrated to suit the engine combination, fuel and intended use, with data reviewed throughout the test program.

Start with a conversation

Tell us what you have—and what you want it to do.

We can discuss the right next step, from diagnosis or a baseline dyno run through to a complete engine, diesel-tuning or development package.