555cc Top-Feed Fuel Injector

The Tomei TB501A-NS05A is a top-feed fuel injector delivering 555cc per minute, engineered to meet the demands of advanced engine tuning. As engine modifications such as increased boost pressure, upgraded camshafts, or turbochargers necessitate greater air and fuel delivery for optimal power output, these injectors serve as a crucial upgrade when stock capacity is insufficient. Tomei provides these specialized injectors to match specific engine requirements, supporting enthusiasts in achieving their tuning goals. Technical specifications include a coil resistance of 2.2 ohms, a pressure rating of 3 bar (43.5 psi), and a test voltage of 14.0 VDC. The minimum static voltage is 1.55 volts. The injectors are sold individually. This injector is compatible with various Nissan models including the Pulsar RNN14 (SR20DET), Silvia/180SX [R]S13 (CA18DET), [R]PS13 S14/S15 (SR20DET), as well as Skyline and Cefiro models with RB20DET, RB25DET, and RB26DETT engines. Note that for RB20DET and some RB26DETT applications, a 'dropping register' may be required.