Drivbiwire
Zehntes Jahr der Veteran Vendor

	
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Installing new nozzles:

For starters they MUST be set properly
(8) yes EIGHT injection events on your (4) cylinder must occur at the correct time. Failure to set the injection pressures is like having a V8 with all eight cylinders firing at random, Sure your TDI will run but just like a V8 with random timing and despite having 8 cylinders making power you simply will not make rated power nor can you expect anyting less than poor economy.

Once you have all the pressures set:
-Adjust the IQ on the pump (not electronic) some call this the "Hammer Mod". Generally I recomend 5.0 with the default 32768 set.

-Set injection timing, anything below the center line reduces HP, from the middle of the graph to the upper portion is worth approx 5hp. Beyond the top of the graph drops HP again. The sweet spot is the 3/4 range.

Now that you have the injectors set properly, Injection timing is set at 3/4 or full scale high proceed to the next step.

-Take the car out at night, watch in the rear view mirror and in 3rd gear floor it. You should see a very slight haze. If you see visible smoke you are exceeding the tune or the engines ability to properly burn the fuel.

Adjust the IQ as required to get a slight haze.

If you are running the limit value of 2.8 IQ (do not run lower than that otherwise you create an idle control conflict) and your tune is maxxed out, now you are a canidate for increased fueling by way of nozzle adjustements. I can make these adjustments on the nozzles which will increase the nozzle flow rates. There is a point of diminishing returns in which case the limiting factor is the injection pumps plunger condition.

In all cases I set all injectors to the Optimal settings for efficiency and emissions (low smoke, maximum benefit of fitted nozzle). In cases where the tuner needs more flow this can be accomodated thru custom settings.

If I set up a set of nozzles for somebody without charge I will make adjustements to the flow after the fact plus the cost of shipping only. I work with a lot of shops as well as custom tuners that require non-standard settings.

In a nut shell:
-Injector calibration priority 1
-Injection timing
-Injection IQ (Mechanical followed by electronic trimming)
-Last resort, injector flow enhancing to increase flow rates which does NOT modify the nozzles in any physical way.