Reply to thread

Message

80% duty cycle

It takes certain amount of time for the injector to fully pull open, and then takes time for it to recover into the closed position again. If you take injectors past the 80% mark, and then rev up into the higher RPM, there is very little time inbetween every rotation of the motor, so you will be asking the injector to open, then close, but before it fully closes, yuo ask it to open again, and then you will cause the spray partern to turn into a dribble.

[RPM - 1 Rotation Cycle--------------------------][Next Rotation----->

[Open Time][Pulse Time----------------------][Close Time----]
......................................................................[Next Open Event]
......................................................................(See The Overlap!)

See you are asking the injector to open again as it just begins its close swing...... partially choking off the spray, and then opening again, so the spray patern flutters.

-Ray

<blockquote data-quote="NA1 #2853" data-source="post: 178331" data-attributes="member: 5287">80% duty cycleIt takes&nbsp; certain amount of time for the injector to fully pull open, and then takes time for it to recover into the closed position again.&nbsp; If you take injectors past the 80% mark, and then rev up into the higher RPM, there is very little time inbetween every rotation of the motor, so you will be asking the injector to open, then close, but before it fully closes, yuo ask it to open again, and then you will cause the spray partern to turn into a dribble.[RPM - 1 Rotation Cycle--------------------------][Next Rotation-----&gt;[Open Time][Pulse Time----------------------][Close Time----]......................................................................[Next Open Event]......................................................................(See The Overlap!)See you are asking the injector to open again as it just begins its close swing...... partially choking off the spray, and then opening again, so the spray patern flutters.-Ray</blockquote>

[QUOTE="NA1 #2853, post: 178331, member: 5287"] [b]80% duty cycle[/b] It takes certain amount of time for the injector to fully pull open, and then takes time for it to recover into the closed position again. If you take injectors past the 80% mark, and then rev up into the higher RPM, there is very little time inbetween every rotation of the motor, so you will be asking the injector to open, then close, but before it fully closes, yuo ask it to open again, and then you will cause the spray partern to turn into a dribble. [RPM - 1 Rotation Cycle--------------------------][Next Rotation-----> [Open Time][Pulse Time----------------------][Close Time----] ......................................................................[Next Open Event] ......................................................................(See The Overlap!) See you are asking the injector to open again as it just begins its close swing...... partially choking off the spray, and then opening again, so the spray patern flutters. -Ray [/QUOTE]

Verification