We have been actively promoting the great products of Injector Dynamics but we think they’ve outdone themselves this time. Soon to be released ID2000
The ID2000 fills out the Injector Dynamics range by providing as much as 3700cc/min at 130 psi.
For you monster power methanol guys, that means 1 injector per cylinder for all but the most demanding applications.
For those of you who need more flow than an ID1000 at 100 psi, the ID2000 fits the bill nicely and will deliver 2200cc/min at 43.5 psi. (3 bar)
And…it will do it with the same low pulsewidth extension as the ID1000.
What that means to you is the extra fuel you need without sacrificng the bottom end, or a large investment in the fuel delivery system.
The first question I was asked about the ID2000 was “My car idles horribly with 1600cc injectors, how could it possibly be better with a 2000cc injector.”
For those of you who have been in the game for a while, you may remember that the same questions were posed when we released the ID1000.
And once again, the answer is exceptional linearity and low pulsewidth extension.
The chart below shows the response of the Bosch 1600cc injector, and the new ID2000.
Those of you who have tuned with the 1600’s know what a bitch it can be to get a smooth idle, but maybe you didn’t know why.
You’ve probably noticed that pretty much every car you have tuned with them idles with a pulsewidth of roughly 1.5msec. You probably also noticed that small changes in air temp compensation, manifold pressure, or any other minor disturbance that would cause the pulsewidth to change has a drastic effect on the fuel ratio.
And you probably even noticed that the idle mixture got richer even if you made the pulsewidth smaller!
Well…now you know why. (Or you didn’t bother to look at the chart!)
In comparison, the ID2000 is extremely well behaved down low and will not only be a breeze to tune, but it will respond properly to air temp and manifold pressure compensations.
Recovery Time and Maximum Linear Duty Cycle
Low pulsewidth extension is just half the picture. We also need our injectors to deliver when we stick our foot in it. Every injector has a definable characteristic called the recovery time.
The recovery time is the amount of time that we need to let the injector “rest” between pulses if we want to maintain linearity.
Looking back at the chart, you can see that the 1600 starts to deviate from linearity at about 7.9 milliseconds while the ID2000 will run up to about 9.2 milliseconds before it starts to go steeply non linear.
Since the injectors were cycled at 100hz, a 10 millisecond pulsewidth equals 100% duty cycle.
That gives the ID2000 a recovery time of .8 millisecond while the 1600 has a recovery time of about 2.1 milliseconds.
So what does that mean in the real world?
It means that at 9000rpm where we have one intake cycle ocurring every 13.33 milliseconds, the ID2000 can run linearly all the way to 12.53 milliseconds while the 1600 is limited to 11.23 milliseconds.
To put this in terms everyone can easily understand, the ID2000 will maintain linearity up to 94% duty cycle while the 1600 is limited to 84.25%, and when it does go non linear, it does so very abruptly!
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