Quote:
Originally Posted by synolimit
ok once again im asking if youre talking about this car or a subi? youre going back and forth or not at all. im being very clear which cars im talking about. i havent tuned my z yet so i dont know the IDC or how nissan monitors the IDC. subis monitor very crudely which is why they all run 90% to +100% IDC and yes they are boosted without issue.
lol why not? 1000's plenty if head room and 2000's run fine without issue on multiple peoples cars i know.
and you didnt have to say anything about idle voltage per say. you clearly said "You will atomize like crap and will have more like a jet stream then a mist and you probably wont be able to hold an idle." that means youre saying the OEM pump at idle wont be flowing the correct voltage and will run like crap. i say youre wrong because at idle a stock pump and an aftermarket pump will be the same, so explain how it will run bad? the tune will pull back the fuel within the injectors and any car with ID injectors whether 600's 1000's 2000's etc with any pump will idle fine as ive seen it happen before.
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I am talking Nissan since that is the forum were on.
+100% is impossible. That's like saying you filled a 10 oz cup up with 11 oz of liquid. Its not possible. When you see an IDC of 105% it is just a mis-calculation. At 100% that injector never closes. They cannot open or close fast enough to make a complete cycle. Your injector pin will float at 100% and this is bad as you cannot control it.
Basically, anything over 80% becomes UNSTABLE. The injector is not capable of completely shutting and then opening at the requested time to spray in the exact amount of required, or asked for fuel.
It all boils down to inconsistency. At 80% or under you are guaranteed a consistent spray, anything over you don't know what you are getting.
Injectors have came a long way recently and I believe ID's state that they can hold 90% DC at 6,000 rpms. But we rev to 7,500 so they will not be stable.