Under High Boost and High-load conditions, the engine makes an immense demand for fuel. The standard fuel pressure regulators often struggle to keep the fuel-rail filled with sufficient pressure to supply all four of the injectors sufficiently.
This is particularly apparant when the engine has been upgraded, particularly with boost-increasing upgrades such as our engine management and chargecooler upgrade.
Standard SAAB fuel rail pressure is around 2.6-2.8 bar, this can give rise to detonation (pinking) problems when making swift transitions from part to full throttle and can momentarity starve the engine of fuel, this can eventually lead to valve and piston heat-damage - which requires expensive work to correct.
Using our 3.0 or 3.3 bar Regulator, the pressure in the fuel rail is kept higher, and as a result, fuel starvation under high-load is eliminated. This is a cost-effective way to safeguard your engine, particularly in the face of decreasing octane in modern fuels.
RBM Reference : RBM12756
Saab reference : 7564123 (0280160256)
manufacturer : BOSCH
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