injector scaling?? anybody have a good how to?? or anybody have a math formula??
05-21-2005, 02:27 PM
#1
injector scaling?? anybody have a good how to?? or anybody have a math formula?? helping a buddy with his tune..
he's swapping injectors...just want to know how to scale it properly to make it all run after the swap...
what table?? any easy math formula's?
he's swapping injectors...just want to know how to scale it properly to make it all run after the swap...
what table?? any easy math formula's?
05-21-2005, 02:41 PM
#2
TECH Senior Member
to convert between bars (since most aftermarket injectors are 3 bar and LS1s run 4 bar)
(((new psi/rated psi )^.5) * rated psi flow)/original injector size
This will give you a scalar you can then use to scale the stock IFR table
so 42lb 3 bar injector = (99/00 26lb injectors, 98,01,02 28lb)
(((4/3)^.5)*42)/26)
=((1.33...^.5)*42)/26
= 1.155*42/26
= 48.5/26 (this is the approximate flow rate of the injector converted to 4 bar)
= 1.87 scalar
(((new psi/rated psi )^.5) * rated psi flow)/original injector size
This will give you a scalar you can then use to scale the stock IFR table
so 42lb 3 bar injector = (99/00 26lb injectors, 98,01,02 28lb)
(((4/3)^.5)*42)/26)
=((1.33...^.5)*42)/26
= 1.155*42/26
= 48.5/26 (this is the approximate flow rate of the injector converted to 4 bar)
= 1.87 scalar
