Information KTM Duke / RC 200 vs Duke / RC 390 vs Gray Area fuel injector

[hadrian1]

Hi dudes!
I put a YZF 450 fuel pump (43-68 psi) 100-120 lts per hour.
The original injector of my duke 200 does not seem to support 3Bar or is damaged. The bike stalls as soon as it starts, sometimes it idles for a while and the engine stalls. accelerating it works but with failures. Change the injector for an iwp 048
technical data
Performance-Typical
Flow ................................................ Fully open
At 3 bar ...............................215 cc/min – 2.45g/s Cone – Inclusive 85% ....... ............................ 24 ° Linearity range (at = 4 ms pulse) ........... ...... ± 4% Max. fuel pressure .......................................500 kPa Maximum duty cycle .... .................................. 90% Operating temperature range ............ .. -30...110 °C Vibration (peak) ................................... ........30g
Test conditions Fluid.............................................. ................... N-Heptane density (@ 20°C) ..................... ................0.684 kg/litre
My duke 200 is remapped.
sprockets 14t-42t
racing exaust - open air flow. Before change fuel pump, 141km/h
With this injector it works well, but it does not exceed 120 km/h. In 6 gear it runs out of power and fuel consumption is tremendous.
I'm going to get a 390 injector and see what happens.

 

[hadrian1]

I have been looking into this same question mark.
What I could find is:
0 280 158 312: 116 g.min at 3 bar
0 280 158 325: 172.2 g/min at 3 bar

They both appear to have the same spray pattern and injection holes.

It will make sense that a 200 will run (better) on a 390 injector (only ) 56.2 g/min increase in fuel supply and will flood with over twice the amount (providing the Grey-Area does 300 cc/min).

you can try with this inyectors: iwp 023 o iwp 065 both 158cc at 3bar