FUEL TYPES · 5 CATEGORIES
Tuning by fuel type
Pick the fuel — the response to tuning is wildly different between diesel turbo (huge gain), petrol turbo (moderate), petrol NA (small) and alternatives (E85, LPG, CNG).
Diesel tuningDiesel turbo engines respond more dramatically to chip tuning than any other fuel type. OEM diesel calibrations leave 20-30% softw…Petrol turbo tuningModern petrol turbo engines respond strongly to chip tuning. OEM calibrations leave moderate software headroom — less than diesel …Petrol naturally-aspirated tuningPetrol naturally-aspirated engines have the smallest software-only tuning headroom of any fuel type. The OEM calibration is alread…E85 tuningE85 (85% ethanol, 15% petrol) is a 105 RON-equivalent fuel widely available in the US and parts of Europe. The high octane lets tu…LPG / CNG tuningLPG (Liquefied Petroleum Gas, also called Autogas) and CNG (Compressed Natural Gas) are alternative fuels widely used in Italy, Ne…