MAZDA 2.3l DISI HPFP UPGRADE Scirocco Due to the factory relief

Due to the factory relief valve

to reduce rotating mass

We generally combat this with a higher idle RPM via tuning

We only stock the STG1 10mm upgrade as this is the most commonly used

the fuel system is pushed to its limits to provide the requested fuel mass

MAZDA 2.3l DISI HPFP UPGRADE Scirocco Due to the factory reliefThe Mazda DISI's OEM operating pressure is 110 bar. At stock power levels, this is adequate for proper atomization and fuel mass delivery into the cylinders. With increased power demands through tuning and hardware upgrades, the fuel system is pushed to its limits to provide the requested fuel mass. With VISs high pressure fuel pump, your tuner has the capability to increase fuel pressure levels to beyond 130 bar! Due to the factory relief valve, a