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Engine maps are a crucial part of your performance out on track, but it often goes overlooked. So, here’s everything you need to know about engine mapping in ACC.
- Written By Vinodh Moodley
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- ACC, Car Setup, Data, GT3, Sim Racing
- November 17, 2022
Assetto Corsa Competizione (ACC) is a racing simulator that attempts to reproduce the experience of racing GT cars on various tracks in wet and dry conditions. This allows us, regular folks, to get some understanding of what it’s like to race those cars without spending a fortune and without worrying about getting into dangerous crashes.
Part of creating this type of simulation is to include as many real-world features as possible to create the highest level of immersion. Real GT cars have controls on the steering wheel to adjust fuel usage, engine performance, throttle maps etc. and ACC actually has these settings available for you to map to your steering wheel and to use while driving.
What is an engine map?
An engine map is essentially a table of data that is used to tell the engine what to do in certain situations. Meaning if the engine is running at 5000 RPM, then the fuel injection needs to supply a certain amount of fuel. However, this can change depending on how fast or slow the throttle can change position as well as a variety of other factors.
Simply put, an onboard computer controls the engine’s performance based on preset data. Since this data can be changed and stored, the car manufacturer can allow certain presets to be made available to the driver to adjust while driving. This then makes it easy for the driver to choose between a high-performance mode that can use more fuel but result in faster lap times or a lower-performance mode to use for fuel saving or better drivability in wet weather conditions.
What is a throttle map?
Generally, when you apply the throttle in sim racing or a real car, you would assume that 30% of throttle movement will result in 30% per cent of engine performance. However, this isn’t ideal in certain situations depending on how powerful the car’s engine is or if the track conditions are wet.
Typically in wet conditions, wheelspin out of slow corners is an issue that a driver has to manage with careful throttle control. A non-linear throttle map means you could apply 30% throttle and get maybe 10% engine performance. This allows the driver to have better control at low speeds in typically wet conditions to minimise loss of traction.
It must be noted, though, that the cars in ACC have Traction Control (TC) as standard, just like the real GT cars they are modelled after, so the issue of low-speed lack of traction isn’t such a problem if you manage the TC settings correctly. The setups provided by Coach Dave Academy already have the various engine maps, TC and ABS optimally set for wet and dry conditions. Since there are so many modes to choose from, with some being only subtly different from others, the Coach Dave Setups will save you a lot of time in finding the perfect modes for qualifying, the race and the odd time when the track is wet.
Final Thoughts
The following tables represent all of the engine maps for all of the GT3 cars in ACC. However, some vehicles have more or fewer modes depending on the manufacturer. This doesn’t necessarily mean that cars with more modes are faster than cars with fewer modes. It just means that some cars have more granular control of the various engine modes, but due to the way ACC balances the performance of the cars, it more or less works out to all of the cars having similar performances.
We suggest that you experiment with the various modes to understand better what they do and to be prepared to use them when needed. Having these settings mapped to your steering wheel will make it so much easier when you need to fuel save or when the weather changes and you need to adjust for low grip weather conditions.
Managing the maps for your GT3 car in ACC won’t make a huge difference in performance, but it will ensure that you will always be ready for any surprises the race may throw at you.
Aston Martin (V12 and V8 GT3)
| Dry Weather Maps | |
| 1 | Fastest mode with high fuel usage |
| 2 | Slightly slower mode with normal fuel usage and very aggressive throttle map |
| 3 | Slightly slower mode with normal fuel usage and a progressive throttle map |
| 4 | Slowest dry weather mode race mode, lowest fuel consumption with a progressive throttle map |
| Wet Weather Maps | |
| 5 | Similar to dry 2 & 3 map, normal fuel consumption with slightly progressive throttle map |
| 6 | A bit slower, less fuel consumption and progressive wet throttle map |
| 7 | Identical to 6 with more progressive throttle map |
| Pace Car Map | |
| 8 | Very slow map and low fuel usage for Pace Car situations |
Audi R8 (GT3 and GT3 EVO)
| Dry Weather Maps | |
| 1 | Fastest high fuel usage |
| 2 and 3 | A bit slower, normal fuel usage 2 different throttle maps |
| 4 | Slowest, less fuel usage, same throttle map as level 3 |
| Wet Weather Maps | |
| 5 | Fast map, normal fuel usage with slightly wet throttle map |
| 6 and 7 | A bit slower map with less fuel usage and 2 different wet throttle maps |
| Pace Car Map | |
| 8 | Very slow map and low usage for Pace Car situations |
Bentley Continental GT3 (2016 and 2018)
| Dry Weather Maps | |
| 1 | Fastest with high fuel usage |
| 2 and 3 | A bit slower, normal fuel usage with 2 different throttle maps |
| 4 | Slowest, less fuel usage, same throttle map as level 3 |
| Wet Weather Maps | |
| 5 | Fast map, normal fuel usage with slightly wet throttle map |
| 6 and 7 | A bit slower map with less fuel usage and 2 different wet throttle maps |
| Pace Car Map | |
| 8 | Very slow map and low fuel usage for Pace Car situations |
BMW M6 and M4 GT3
| Dry Weather Maps | |
| 1 | Fastest with very high fuel usage, aggressive throttle map |
| 2 and 3 | A bit slower, normal fuel usage, 1 linear throttle map, 1 gradual throttle map |
| 4 | Reserve engineers map, don’t use. Very low power |
| Pace Weather Car Map | |
| 5 | Very slow map and low fuel usage for Pace Car situations |
| Wet Maps | |
| 6 | Fastest, high fuel usage, wet weather throttle map |
| 7 and 8 | A bit slower, normal fuel usage, 2 different wet weather throttle map |
Ferrari 488 GT3
| Dry Weather Maps | |
| 1 | Fastest, normal fuel usage |
| 2 | A bit slower, less fuel usage |
| 3 | A bit slower, normal fuel usage |
| 4 | Slowest, lowest fuel usage |
| Wet Weather Maps | |
| 5 | Fastest normal fuel usage, wet throttle map (less linear more gradual) |
| 6 | A bit slower, less fuel usage, wet throttle map (less linear more gradual) |
| 7 | A bit slower, normal fuel usage, wet throttle map (less linear more gradual) |
| 8 | Slowest, lowest fuel usage, wet throttle map (less linear more gradual) |
| Pace Car Maps | |
| 9 to 12 | Reserved and Pace Car levels. Very low power maps and low fuel usage for Pace Car situations |
Ferrari 488 GT3 EVO
| Dry Weather Maps | |
| 1 | Fastest extremely aggressive throttle and power delivery, high fuel usage, |
| 2 | A little slower, still very aggressive throttle and high fuel usage |
| 3 | Normal, aggressive throttle and normal fuel usage |
| 4 | Normal, moderately aggressive throttle, slightly less usage |
| 5 | Normal, almost linear throttle, slightly less fuel usage |
| Wet Weather Maps | |
| 6 | A bit slower, less fuel usage, wet throttle map (less linear more gradual) |
| 7 | A bit slower, normal fuel usage, wet throttle map (less linear more gradual) |
| 8 | Slowest, lowest fuel usage, wet throttle map (less linear more gradual) |
| Pace Car Maps | |
| 9 to 12 | Reserved and Pace Car levels. Very low power maps and low fuel usage for Pace Car situations |
Honda NSX (GT3 and GT3 EVO)
| Dry Weather Maps | |
| 1 | Full power, progressive throttle map |
| 2 | Full power, linear throttle map |
| 3 | Full power, aggressive throttle map |
| 4 | Full power, very aggressive throttle map |
| Wet Weather Maps | |
| 5 | Full power, progressive throttle map |
| 6 | Full power, more progressive throttle map |
| 7 | Less power and fuel usage, progressive throttle map |
| Pace Car Map | |
| 8 | Very slow map and low fuel usage for Pace Car situations |
Lamborghini Gallardo REX
| Engine Maps | |
| 1 | Fastest with high fuel usage |
| 2 | A bit slower, normal fuel usage and aggressive throttle map |
| 3 | Identical to 2, progressive throttle map |
| 4 | Slowest, less fuel usage, same throttle map as level 3 |
Lamborghini Huracan (GT3 and GT3 EVO)
| Dry Weather Maps | |
| 1 | Fastest with high fuel usage |
| 2 and 3 | A bit slower, normal fuel usage with 2 different throttle maps |
| 4 | Slowest, less fuel usage, same throttle map as level 3 |
| Wet Weather Maps | |
| 5 | Fast map, normal fuel usage with slightly wet throttle map |
| 6 and 7 | A bit slower map with less fuel usage and 2 different wet throttle maps |
| Pace Car Map | |
| 8 | Very slow map and low usage for Pace Car situations |
Jaguar
| Dry Weather Maps | |
| 1 | Fastest with very high fuel usage, linear throttle map |
| 2 | A bit slower, normal fuel usage, linear throttle map |
| 3 | Slower, less fuel usage, linear throttle map |
| Wet Weather Maps | |
| 4 | Fastest with very high fuel usage, wet gradual throttle map |
| 5 | A bit slower, normal fuel usage, wet gradual throttle map |
| 6 | Slower, less fuel usage, wet gradual throttle map |
Nissan GT-R GT3 (2016 and 2018)
| Dry Maps | |
| 1 | Fastest high fuel usage, linear throttle map |
| 2 | A bit slower, normal fuel usage, linear throttle map |
| 3 | Slower, less fuel usage, linear throttle map |
| 4 | Fuel saving mode, linear throttle map |
Lexus RC F GT3
| Dry Maps | |
| 1 | Fastest high fuel usage, linear throttle map |
| 2 | Identical to 1, aggressive throttle map |
| 3 | Identical to 1, progressive throttle map |
| Wet Map | |
| 4 | Fuel saving, wet throttle map |
| Pace Car Map | |
| 5 | Very slow map and low usage for Pace Car situations |
McLaren 650S GT3
| Dry Maps | |
| 1 | Fastest with normal fuel usage |
| 2 | A bit slower, less fuel usage |
| 3 | A bit slower, normal fuel usage |
| 4 | Slowest, lowest fuel usage |
| Wet Maps | |
| 5 | Fastest with normal fuel usage, wet throttle map |
| 6 | A bit slower, less fuel usage, wet throttle map |
| 7 | A bit slower, normal fuel usage, wet throttle map |
| 8 | Slowest, lowest fuel usage, wet throttle map |
| Pace Car Map | |
| 9 | Reserved and Pace Car levels. Very low power maps and low usage for Pace Car situations |
McLaren 720S GT3
| Dry Maps | |
| 1 | Qualifying fastest, aggressive throttle map, high fuel usage |
| 2 | Race1 a bit slower, linear throttle, normal fuel usage, |
| 3 | Race2 a bit slower, progressive throttle map, a bit less fuel usage |
| 4 | Race 1 Fuel save map, less power, linear throttle map, low fuel usage |
| 5 | Race 2 Fuel save map, even less power, linear throttle map, even lower fuel usage |
| 6 | Race 3 Fuel save map, lowest power, linear throttle map, lowest fuel usage |
| 7 | High Temp very low power and very high usage, to cool off engine in emergency situations |
| Damp Maps | |
| 8 | Damp Qualifying, progressive throttle map, high fuel usage |
| 9 | Damp Race Fuel save map, less power, progressive throttle map, low fuel usage |
| Wet Car Map | |
| 10 | Wet Qualifying, wet throttle map, high fuel usage |
| 11 | Wet Race1 a bit slower, wet throttle map, normal fuel usage |
| 12 | Wet Race2 a bit slower, wet throttle map, normal fuel usage |
Mercedes AMG (GT3 and GT3 2020)
| Engine Maps | |
| 1 | Fastest high fuel usage with linear throttle map |
| 2 | A bit slower with normal fuel usage, linear throttle map |
| 3 | Slow, low fuel usage, linear throttle map |
Porsche 991 (GT3-R and GT3-R EVO)
| Engine Maps | |
| 1 | Normal power and fuel usage with least progressive throttle map |
| 2 | Normal power and fuel usage with progressive throttle map |
| 3 | Normal power and fuel usage with aggressive throttle map |
| 4 | Normal power and fuel usage with linear throttle map (Often used for Wet) |
| 5 | Qual power, high fuel usage, least progressive throttle map |
| 6 | Qual power, high fuel usage, progressive throttle map |
| 7 | Qual power, high fuel usage, aggressive throttle map |
| 8 | Qual power, high fuel usage, linear throttle map (Often used for Dry) |
| 9 | Low power, low fuel usage, progressive throttle map |
| Pace Car Map | |
| 10 | Very slow map and low fuel usage for Pace Car situations |
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- Written By Vinodh Moodley
- Tutorials
- ACC, Car Setup, Data, GT3, Sim Racing
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The Complete Guide to Engine Mapping in Assetto Corsa Competizione
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