Hello-
I have a set of Siemens Deka 60 lb/hr injectors I'd like to use on my engine, and am a bit confused by the specs given to me by Racetronix (www.racetronix.com):
Static Flow Rate: 60.56 lb/hr = 668 cc/min = 458 g/min (+/-6%)
Dynamic Flow Rate 2.5ms PW @ 100Hz @ 600KPa: 19.5 mg/pulse (+/-6%)
Coil Resistance: 12 Ohms (This high-impedance injector will work with all factory ECM/PCM injector drivers)
Gain: 0.11ms/mg
Offset: 0.055ms
Turn on time @ 14VDC: 1.14ms
Turn off time: 0.85ms @ 600KPa
Spray Pattern: Cone (4-Hole)
In particular, the closing time (turn off time) seems outrageously high. From what I've read on this forum, it seems that turn off time has a lot to do with flyback damping. I dunno if it matters, but I have an MS2 v3.57, and have left all of the flyback damping circuitry in place.
Do these specs mean that the "opening time" I should input into MegaTune is 1.14-0.85 = 0.3 ms, or is something strange here?
Thanks in advance for your help!
Take care,
Shad
Injectors - opening and closing time specs seem odd...
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.