HELP!!!!!super-afc with rc 370cc injecter?
08-11-2003, 10:14 AM
#2
3.0 BAR
Join Date: Feb 2003
Posts: 9,089
Re:HELP!!!!!super-afc with rc 370cc injecter?
sure can.. just wont be able to push enough fuel w/ high boost.
370cc - 35% = 240.5cc
370cc - 47% = 196.1cc
450cc - 35% = 292.5cc
450cc - 47% = 238.5cc
just different correction values.
370cc - 35% = 240.5cc
370cc - 47% = 196.1cc
450cc - 35% = 292.5cc
450cc - 47% = 238.5cc
just different correction values.
08-11-2003, 11:35 AM
#3
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re:HELP!!!!!super-afc with rc 370cc injecter?
Originally Posted by crx88Si
just wont be able to push enough fuel w/ high boost.
08-11-2003, 12:38 PM
#4
3.0 BAR
Join Date: Feb 2003
Posts: 9,089
Re:HELP!!!!!super-afc with rc 370cc injecter?
high boost meaning that at stock fuel pressures you will max out 370cc way before 450cc.
370cc will reach 100% duty cycle before 450cc..
but you cant rely on 100% realistically you chance fuel delivery at 90% duty cycle.
370cc will reach 100% duty cycle before 450cc..
but you cant rely on 100% realistically you chance fuel delivery at 90% duty cycle.
08-11-2003, 01:26 PM
#5
3.0 BAR
Join Date: Apr 2003
Posts: 2,260
Re:HELP!!!!!super-afc with rc 370cc injecter?
Duty cycle will be the same, but because 450cc injectors flow 17% more fuel than 370's, yes, he'll be able to run more boost on 450s at the same fuel pressure..
..but that was not his question..
Your MAP sensor will top out before you reach maximum duty cycle on 370cc injectors. Thus the reason for scaling with AFC. If you scaled 17% less than a 450 default setting of -32%@8000 RPMs (Which is what I have for 10psi on my personal setup), you're still only at -15% lean.. Still well within the 0% correction setting.
..but that was not his question..
Your MAP sensor will top out before you reach maximum duty cycle on 370cc injectors. Thus the reason for scaling with AFC. If you scaled 17% less than a 450 default setting of -32%@8000 RPMs (Which is what I have for 10psi on my personal setup), you're still only at -15% lean.. Still well within the 0% correction setting.
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