scaling IFR table
#1
TECH Junkie
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: Cornelius, NC
Posts: 3,473
Likes: 0
Received 0 Likes
on
0 Posts
scaling IFR table
Recently installed larger injectors and I saw the stock ifr table was at constant value across the range, so I increased it by a margin ((larger inj/stock inj)*stock values) and left it. Then when I plugged in values into a spreadsheet the values where scaled upwards slightly.
What is the purpose of scaling the ifr table in a slight curve upward?
What is the purpose of scaling the ifr table in a slight curve upward?
#2
11 Second Club
Join Date: Jul 2002
Location: Beaver Falls, PA
Posts: 1,426
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 02sierraz71_5.3
Recently installed larger injectors and I saw the stock ifr table was at constant value across the range, so I increased it by a margin ((larger inj/stock inj)*stock values) and left it. Then when I plugged in values into a spreadsheet the values where scaled upwards slightly.
What is the purpose of scaling the ifr table in a slight curve upward?
What is the purpose of scaling the ifr table in a slight curve upward?
#3
TECH Junkie
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: Cornelius, NC
Posts: 3,473
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Texas Terminator
with a stock regulator, it increases pressure with an decrease vacuum. look at the ifr table, it has kpa's across the top from 100 down to 20. the lower the kpa (vacuum) the more it increases pressure for engine load.
I also have a 17ms inj. pulse width running SD and 20 ms inj. PW running a tuned maf
any thoughts.
#4
TECH Junkie
Thread Starter
iTrader: (2)
Join Date: Oct 2004
Location: Cornelius, NC
Posts: 3,473
Likes: 0
Received 0 Likes
on
0 Posts
these are the scaled values I got from 0 to 80 kpa with
Injector Rated Fuel Pressure: 58
Your Fuel Rail Pressure: 58
Injector Rated Flow Rate 30
30.00052906 30.18750146 30.37332291 30.55801442 30.74159634 30.92408844 31.1055099 31.28587935 31.46521487 31.64353405 31.82085397 31.99719125 32.17256204 32.34698206 32.52046662 32.69303059 32.86468849
does this look correct
Injector Rated Fuel Pressure: 58
Your Fuel Rail Pressure: 58
Injector Rated Flow Rate 30
30.00052906 30.18750146 30.37332291 30.55801442 30.74159634 30.92408844 31.1055099 31.28587935 31.46521487 31.64353405 31.82085397 31.99719125 32.17256204 32.34698206 32.52046662 32.69303059 32.86468849
does this look correct