Posted: Sat May 13, 2006 5:41 pm
I understand your point, but even in your example, that still leaves near 80%....plenty of time for a properly sized injector.LT401Vette wrote:Uncle Bob,
That is not entirely true, RPM does have some impact.
Think of this, say your injector open time is 1ms.
Well, on a 5000 RPM engine, you have 12ms between burns, so that 1 ms lost to opening, isn't so significant only 8.5% lost to open time. You still have 11 ms.
Now a 13000 RPM bike motor only has 4.6 ms between burns, take 1ms off for open time and you are down to 3.6 ms, so 22% of the injectors time to spray is lost in open time.