At Surrey Tuning we have a team that develop all our own software in house which gives us the ability to provide you (the customer) with the exact results you are looking for.
Surrey Tuning confidently guarantees the most precise configuration available. We offer stock-like drivability with extreme power gains by modifying your engine‘s timing, boost, and fuel mixture… and by applying our secret formula! Our custom tuning service reflects our goal of providing the most trustworthy, clean, and cost efficient method available for extracting the most out of your engine.
All of our software be it performance or economy focused is always dyno developed in the first instance which ensures we accurately monitor:
Air Fuel Ratios (AFR’s)
It is important to ensure optimum AFR is achieved in order to ensure that stoichiometric mixture. This in basic terms means that the engine isn’t running lean or rich fuel mixture. This is also important in ensuring that your engine is MOT compliant.
It is always important to monitor engine knock when developing a good and most importantly a safe tune. Knocking or detonation occurs when unburnt fuel in the combustion chamber explodes rather than a burning in a controlled manner. When engine knock is occuring the pressure within the combustion chamber rises dramatically to levels that can destroy your engines internal components within seconds.
It is important that correct boost pressure control is achieved to ensure that no spikes or dips occur to ensure maintained life of the turbo charger. A spike in the boost delivery can cause over-boosting which pressurises the compressor to a level beyond its tolerance.
Exhaust Gas Temperatures (EGT)
When increasing the fuelling and boost pressures of an engine it naturally increases the EGT. It is important to log the EGT of an engine as there is a crucial limit which shouldn’t be surpassed to ensure maintained longevity. This is a good tool in monitoring the efficiency of uprated intercoolers etc.
Injector Duty Cycles (IDC)
This is crucial to know the fuelling limitation of the injector. On some modern cars we are seeing injectors with 100% IDC from standard meaning there is no room for further modification without upgrading the injectors (this is rare however). If it was a turbo application, and the boost pressure was raised, due to there being no additional fuel available, it would cause the engine to run lean and potentially melt your pistons.
In conclusion whether you decide upon having your vehicle set up on a dyno or choose the convenience of our mobile ecu remapping service you can rest assured that all our remaps are developed and tested to provide good, safe and reliable tuning. Never will we operate outside of the engines capabilities on standard components as your vehicles reliability is as important to us as it is to you.