Charles
Well-known member
- Joined
- May 18, 2011
- Messages
- 2,727
- Reaction score
- 32
Just off-the-cuff... if we're talking about a cruising around duration while trying to control smoke...it seems WAYYYYYY long....
Our old-ass dinosaur injectors with 200% nozzles will make damn near full power at 2ms, and your CR injectors are so fast that they can make multiple injections in a single combustion event, so the delay must be miniscule in comparison, so an equal signal duration would me a hell of a lot more fuel for you. Not to mention the fact that your injectors will come much closer to actually delivering that 200% injection rate given the lack of internal bs that ours have to overcome.
Our injectors have about a .7ms lag time from when the signal is started, until fuel begins injecting. Meaning that with a 2ms signal duration we would only actually be injecting fuel for 1.3ms.
If your Piezos were popping open in say .2ms instead, then with the same signal duration you would acheive an injection duration of 1.8ms, nearly 40% more fuel... if the injection rate was identical.... which it's not.
At medium to moderate throttle, on an injector with that kind of response, I would expect a starting point on duration to be sub 1ms on anything you expected to behave on the street. Hell, my pos old dinosaur heui's hardly ever exceed 1ms driving around, even pretty quickly.
I think the CR injection pressures have spoiled you guys into running tiny nozzles because it's letting you get away with it.
But... there's a really, really good chance that you could be running much larger nozzles with much less duration, and less timing making much more power with less or similar peak cylinder pressure and lower in-cylinder temps.
