ENGINE MANAGEMENT & FUEL INJECTION
Engine Management
ECUs DIAGNOSTICS STEINBAUER TUNING BOXES THROTTLE BODIES
Please note we can also arrange remapping (chip tuning) via the OBD diagnostic port and on some trickier cars remap via chip removal / jump
Engine Management - a basic guide
With the advanced technology at our disposal nowadays carburettors are almost a thing of the past. Fuel injection comes in many shapes and sizes but in every case there is some form of computer deciding how much fuel to inject and when. It is the optimisation of this management combined with improvements in gas flow that to a large extent mean that a set of racing carburettors are no longer the favoured option.
The majority of production cars use some kind on plenum multipoint injection system. The plenum system allied to a single throttle body gives good mid range torque and low speed flexibility. They are usually well designed enough to enable a fair degree of tuning to release more power at the top end of the rev range. More often than not the biggest challenge is the current engine management system. If you have an airflow meter of some kind your computer will automatically provide more fuel in response to greater airflow. How much it can stand is the question. In Fuel Pumps we discussed fuel flow requirement. We know that the injectors will probably be able to flow up to 20% more fuel, so assuming we install other components (cylinder head, camshaft, exhaust) a 20% power gain keeping standard injection is probably realistic. You then reach a crossroads, either you can remap the existing system and stick with the plenum or you can replace the existing management and upgrade the injectors and keep the manifold. Some event regulations actually state the original induction system must be kept, but that the ECU can be changed. Approximately a 20-50% increase in power should be achievable with N.A engines and more with turbos keeping the existing manifold. Beyond this if your regulations allow throttle bodies are the way to go.
Fuel Injection
- Steinbauer Tuning Box JAGUAR XF 2.2d Stock HP:197 Enhanced HP:236 (220500_1193)£1,140.00 £950.00Stock kW:147 Enhanced kW:176
Stock Torque lb ft:332 Enhanced Torque lb ft:398
Stock Torque Nm:450 Enhanced Torque Nm:540
Engine Size:2179cc, TUV Approval:NO Learn More - Steinbauer Tuning Box JAGUAR XF 2.7 d Stock HP:204 Enhanced HP:244 (220057_1189)£1,548.00 £1,290.00Stock kW:152 Enhanced kW:182
Stock Torque lb ft:321 Enhanced Torque lb ft:385
Stock Torque Nm:435 Enhanced Torque Nm:522
Engine Size:2720cc, TUV Approval:YES Learn More - Steinbauer Tuning Box JAGUAR XF 3.0d Stock HP:208 Enhanced HP:249 (220395_1191)£1,548.00 £1,290.00Stock kW:155 Enhanced kW:186
Stock Torque lb ft:332 Enhanced Torque lb ft:398
Stock Torque Nm:450 Enhanced Torque Nm:540
Engine Size:2993cc, TUV Approval:NO Learn More - Steinbauer Tuning Box JAGUAR XF 3.0d Stock HP:237 Enhanced HP:284 (220395_1190)£1,548.00 £1,290.00Stock kW:177 Enhanced kW:212
Stock Torque lb ft:369 Enhanced Torque lb ft:443
Stock Torque Nm:500 Enhanced Torque Nm:600
Engine Size:2993cc, TUV Approval:NO Learn More - Steinbauer Tuning Box JAGUAR XF 3.0dS Stock HP:271 Enhanced HP:324 (220395_1192)£1,548.00 £1,290.00Stock kW:202 Enhanced kW:242
Stock Torque lb ft:443 Enhanced Torque lb ft:531
Stock Torque Nm:600 Enhanced Torque Nm:720
Engine Size:2993cc, TUV Approval:NO Learn More