98/99 Octane tuning
Programming to reach the engine’s potential
The software is remapped and programmed to make full use of the fuel’s capacity. Among other things, the maps that control the ignition are adjusted with advanced ignition angle, taking advantage of the properties of 98/99 octane fuel and producing more power. Original software is often adapted and mapped for low-octane fuel.
Lambda control is also remapped, since maximum combustion (“stoich”) and maximum power sit at different points on the lambda scale. For gasoline, maximum combustion, lambda 1, is at 14.7 parts air to every part of fuel, while maximum power is at 12.7 parts air. For some applications you might even want to go more rich to stay safe.
Engines with forced induction, turbocharged and supercharged engines, are adjusted by allowing higher boost pressure.
Engines with electronically controlled intake valves are mapped so that the valves can open further and for longer, achieving the best possible airflow in combination with different intakes.
Modern torque-based systems are mapped for higher torque.
Since all software is mapped and programmed in-house by Fekzen AB, the settings can be made to your wishes or on our recommendation.
We have been developing custom special software for over 20 years and can adjust for e.g. a different intake, special fuel or special applications that require a lower rev limit or limited top speed.
Contact us for more information about which special settings we can offer.
Example projects
BMW E90 325i Race car
Race car competing in the BMW 325 CUP.
See the project on Instagram Bosch MED17.5VW Golf 6 GTI TSI 2011
Now running our performance software for the stock Bosch MED17.5 engine management system.
See the project on Instagram Siemens MSD81.2BMW E91 318i N43B20
Now running a 320i camshaft and our custom performance remap for the Siemens MSD81.2 engine management system.
See the project on InstagramMore services
Contact
Send an inquiry with your car, engine and preferred fuel.
