injector questions

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Jul 21, 2005 | 02:00 PM

02sierraz71_5.3

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From: Cornelius, NC

injector questions

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

Jul 21, 2005 | 08:37 PM

slowta99

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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

Jul 22, 2005 | 12:36 PM

02sierraz71_5.3

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From: Cornelius, NC

Quote:

Originally Posted by 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

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)

Jul 22, 2005 | 12:52 PM

2xLS1

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Quote:

Originally Posted by 02sierraz71_5.3

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)

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

Jul 22, 2005 | 02:17 PM

02sierraz71_5.3

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Quote:

Originally Posted by 2xLS1

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

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