Gasoline Direct Injection (GDI)

450 to 3,000 PSI High-Pressure Diagnostics

Gasoline Direct Injection (GDI) introduces fuel directly into the combustion chamber rather than the intake port. Fuel is delivered under extreme hydraulic pressures between 450 and 3,000 PSI (30 to 200+ Bar), creating an ultra-fine fuel droplet atomization of approximately ±65 microns compared to ±165 microns on conventional port injectors.

Because direct injector tips are directly exposed to the violent heat and soot of cylinder combustion, heavy carbon deposits accumulate across the micro-orifices. This distorts the conical spray plume, creating cold-start misfires, soot build-up on intake valves, and catalytic degradation.

• High-Pressure Test Bench: Pressure simulation up to 3000 PSI verifying atomization geometry and non-drip sealing.
• Teflon Combustion Seals: New high-pressure Teflon compression ring replacement with dedicated sizing tools.
• Peak & Hold Drivers: Testing specialized low-impedance electromagnetic direct injection drivers.