02sierraz71_5.3

iTrader: (2)

Just put in larger injectors the stock ifr table was a constant value across the whole table. This is an 02 gm truck with a vacuume reference on the rails. every calculator I can find uses scaled ifr Im looking for a constant number
for

Injector Rated Fuel Pressure: 43.5
Your Fuel Rail Pressure: 58
Injector Rated Flow Rate 30

what is the formula
thanks

slowta99

i found this link somewhere, I think this is what your talking about, credit to whoever made this table

http://www.transamws6.net/HPTuners/injectors.xls

02sierraz71_5.3

iTrader: (2)

thanks but those are scaled values I need to know injector flow at 58 psi

could it be as simple as (43.5/30)=(58/x)

2xLS1

iTrader: (25)

Yep, that simple. I would also like to know why GM used a fixed value on the trucks and scaled on the cars.

02sierraz71_5.3

iTrader: (2)

I think its because the have a vacuume reference on the rails, do they do that on the fbodies? Thats a good question I would like to know also I think it has something to do with a difference in the return system

02sierraz71_5.3

iTrader: (2)

what is the formula to figure how much and injector will flow at a higher psi, having some doubts on my math

2xLS1

iTrader: (25)

(43.5/30)=(58/x) will work. Just cross multiply and solve for x.

43.5 * x = 30 * 58

43.5 * x = 1740

43.5 * x /43.5 = 1740 / 43.5

x = 40

slow

iTrader: (7)

a static rail pressure has emissions benefits, which is why the cars went to them, but the trucks do not, as they are in a different class for testing. note; not talking about tailpipe emmisions, but the real testing that car companies have to deal with.

Ryan