INJECTORS: __ Pintle vs Ball / Disc style injectors ----- Pros / Cons ?
01-10-2004, 06:28 PM
#1
Thread Starter
Join Date: Mar 2002
Location: Blacksburg, VA
Posts: 4,547
Likes: 0
Received 0 Likes
on
0 Posts
INJECTORS: __ Pintle vs Ball / Disc style injectors ----- Pros / Cons ?
This wasnt getting too much attention and thus I made this one...
Victory Performance Equipment 880cc Ball / Disc style injectors
This is a tech note posted by a staff member of RC Engineering:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Peak and hold injectors are fired at 4 to 6 Amps, through a ballast resistor, and then fold back to 1 - 2 Amps for the duration of the injection event. They are also known as "fold back" Injectors. Peak and hold injectors are faster responding than Saturated injectors by as much as 1 to 1.5 Ms. They are activated with more power at opening than the saturated types (4-6 Amps vs. .75 -1 Amp.). Peak and hold injectors will maintain injection delivery, cycle to cycle, continuity more accurately than the saturated type. This is particularly true and even more important in high-pressure (75 - 100+ PSI) systems. The higher Hydrostatic loading at excitation requires more amperage to initially activate the injector solenoid and properly maintain complete opening. Peak and hold systems are more expensive to manufacture because they require one computer "injector driver" per injector in most applications. This is a design requirement in Sequential Fire Systems where each injector is fired at a very precise, pre determined, time in the 720 degree 4 stroke processes. P&H injectors are also wound with copper wire instead of brass wire. </TD></TR></TABLE>
What do you guys think? Is what he saying biased or true?
Victory Performance Equipment 880cc Ball / Disc style injectors
This is a tech note posted by a staff member of RC Engineering:
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Peak and hold injectors are fired at 4 to 6 Amps, through a ballast resistor, and then fold back to 1 - 2 Amps for the duration of the injection event. They are also known as "fold back" Injectors. Peak and hold injectors are faster responding than Saturated injectors by as much as 1 to 1.5 Ms. They are activated with more power at opening than the saturated types (4-6 Amps vs. .75 -1 Amp.). Peak and hold injectors will maintain injection delivery, cycle to cycle, continuity more accurately than the saturated type. This is particularly true and even more important in high-pressure (75 - 100+ PSI) systems. The higher Hydrostatic loading at excitation requires more amperage to initially activate the injector solenoid and properly maintain complete opening. Peak and hold systems are more expensive to manufacture because they require one computer "injector driver" per injector in most applications. This is a design requirement in Sequential Fire Systems where each injector is fired at a very precise, pre determined, time in the 720 degree 4 stroke processes. P&H injectors are also wound with copper wire instead of brass wire. </TD></TR></TABLE>
What do you guys think? Is what he saying biased or true?
01-16-2004, 06:18 AM
#5
Junior Member
Join Date: Sep 2002
Location: warren, mi
Posts: 661
Likes: 0
Received 0 Likes
on
0 Posts
http://www.extremepsi.com/x/cu...age=1
talks alittle on the subject and is a good price on some 780s
talks alittle on the subject and is a good price on some 780s
Thread
Thread Starter
Forum
Replies
Last Post
integra-modder
Tech / Misc
3
01-12-2004 09:10 AM
