Injector Question?
07-07-05, 10:46 AM
#1
Rotary Enthusiast
Thread Starter
Join Date: Jan 2003
Location: panama city beach
Posts: 752
Likes: 0
Received 0 Likes
on
0 Posts
Injector Question?
Does Anyone Know What The Pattern Of The Stock Injectors May Be. As In At What Rpm's And/or Lbs. Of Boost Do The Secondary Injectors Come Online With The Primaries?
07-07-05, 11:20 AM
#3
Lives on the Forum
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes
on
8 Posts
No.
The secondaries come online only above 2750 rpm whenever the primary injector duty cycle exceeds a certain percentage. I don't know the percentage, however, given how other things are setup, I would guess when the duty cycle exceeds 50% on the primaries. So the boost pressure that this occurs at will vary by rpm.
The secondaries come online only above 2750 rpm whenever the primary injector duty cycle exceeds a certain percentage. I don't know the percentage, however, given how other things are setup, I would guess when the duty cycle exceeds 50% on the primaries. So the boost pressure that this occurs at will vary by rpm.
Trending Topics
07-08-05, 02:19 PM
#10
Registered User
Join Date: Jan 2003
Location: Sterling, VA
Posts: 1,038
Likes: 0
Received 0 Likes
on
0 Posts
Yeah, on the stock ECU, they won't come on until 2750RPM. As Rynberg said, the ECU switches them on when the primaries hit a certain duty threshold.
They don't simply come on at a certain engine speed. When the engine has exceeded 2750RPM, AND the primary injector duty has exceeded a preset limit, the ECU starts using the secondaries. So the actual engine speed at which the secondaries start spraying depends on load.
They don't simply come on at a certain engine speed. When the engine has exceeded 2750RPM, AND the primary injector duty has exceeded a preset limit, the ECU starts using the secondaries. So the actual engine speed at which the secondaries start spraying depends on load.
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
07-01-23 04:40 PM
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM