Quote:
Originally Posted by Deni
Hi!
I was thinking is it possible if we change the opening pressure of the injectors we can control the amount of fuel injected. I.e. the opening pressure of the injectors of an om602 turbo is 135-145 bar when new and at least 120 bar used. If I lower it to lets say 100 bar, the injector will stay open longer, thus injecting more fuel. The injectors of a n/a 601/2/3 engine have a factory opening pressure of 115-125 bar when new and at least 100 bar when used, thus 100 bar should be acceptable.
Is this idea flawed or not?
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It don't work that way...the lower pressure will inject slightly earlier...the injection pump determines how much fuel...being as fuel is nearly incompressible the i/p pushes the fuel and it don't matter if it was 170 bar the fuel quantity will be the same for that throttle position.
However, the engine will be a little quieter.
Bosch uses that 120 to 135 bar setting primarily to inject a mist of fuel rather than a squirt or large droplets that would not completly burn.
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