Bosio ULSD 520 - DLC Coated
Direct replacement for the AFN / ASV Nozzle but with DLC Coatings
OEM style nozzles are 205mnominal +10whp and 20lb-ft nozzle
Stock replacement for European 110 hp AFN/ ASV motors.
Great upgrade for Stock Turbo, Also works will with a level up turbo.
-Optimized spray pattern
- Closer tolerances
- Hardened wear surfaces
- DLC Coated needle for superior wear characteristics with ULSD fuel
- More power than the OEM parts
- More torque than OEM parts
- Less exhaust smoke for the same power output
- Improved economy
- Better Throttle Response
- Cleaner Startups
All of our Bosio VE nozzles ship with new OEM sealing washers included.
Optimized 205 m Nominal Hole diameter
ULSD Rated Nozzle
The key advantage to a DLC coating is the superior sliding surface it creates between two moving parts. This allows significant reductions in friction, and far greater durabiltiy due to reduced reliance on the lubricity of the fuel.
Standard Needle and Nozzle
A standard needle is uncoated and relies on the end result of the precision machining. This leaves very slight imperfections in the surfaces that increase the reliance on the fuel to prevent wear. Also this slightly increases the friction and thus lowers the response time of the needle consequently lowering its overall efficiency.
Bosio nozzles from Kerma are the best option for maintenance,, or TDI performance upgrades of VW TDI injectors. kermaTDI started the TDI performance market with Power Plus 520 Bosio nozzles. This was the first breakthrough in VW Diesel performance.
Add kermaTDI VW TDI turbo upgrades, and TDI ECU or TDI Tuning upgrades with the Kerma Q Loader flash programmer ...and we can take the 90 Horsepower VW TDI to 135 , 150, or 175+ Horsepower. TDI performance with increased fuel economy , that is why kermaTDI is a leader in VW diesel performance .
Flow Data: +61% over Stock Flow (vs the 90hp Bosch DSLA 150P 706 nozzle)
Supports Power Outputs from: 90-160hp (with supporting modifications)
ULSD Rated Nozzle - 5 year unlimited mileage warranty with Calibration Service