oange ss

iTrader: (50)

someone posted a while back about not using stock IFR rate table to modify IFR, why is this ? I'm multiplyin my stock IFR table by 1.25 to adjust for SVO 30 lb injectors, is this not right ? Thanx

bshell

iTrader: (24)

I can't remember offhand the reason for not using a straight multiplier for new injectors. I used RedHardSupra's blogspot to dial my injectors in.
http://redhardsupra.blogspot.com/
I downloaded the excel spreadsheet and copied the calculated #s from there.

horist

can't use a astraight multiplier... but there's been some questions regarding what ford actually rates their injectors at...

All this info is in the sticky's

oange ss

iTrader: (50)

he has a fuel rate chart listed for SVO 30 lb injectors on that website, but it's for injectors rated at 43.5 lb of pressure...I called SVO 3 times in one week to ask them about the rated pressure for their injectors ( I called so many times to see if I got the same answer each time), every time I called I got a different person and they all said 40lbs, if they're lyin at least they're consistant

RedHardSupra

iTrader: (1)

then use the spreadsheet to use it with 40psi as their rated pressure, no big deal there. all i know that i had my stockers in, ve tuned in pretty much perfect, swapped injectors, put in new IFR based on the 43.5psi rating numbers, and the trims didn't change at all, car ran perfect right away, the only thing that changed was the duty cycle.

oange ss

iTrader: (50)

something aint right then...they're full of **** then

oange ss

iTrader: (50)

i tried to copy/paste the results but HPTuners keeps adding numbers to the tables...I even tried inputing the numbers manually but it adds like .02-.04 to each cell....WTF ?!?!?

Viper

iTrader: (6)

I found that too - no matter what values you put in, it changes right before your eyes. I asked RedHardSupra about it with no response but WS6FireBird00 was able to do it too.

However no one has explained why it's happening.

RedHardSupra

iTrader: (1)

sorry, i've been awefully busy lately. my guess would be that i probably used 58.02psi for my 4bar conversion, as that's what it is precisely speaking. that would be the source of the minute differences. use the spreadsheet, try it, maybe that will explain a thing or two.

oange ss

iTrader: (50)

even if i try to replace the the numbers without copy/paste the end result is the addition of about .02

WS6FirebirdTA00

iTrader: (33)

when you paste in the tune right? i just think that you have to be in a certain number range. i know that some settings i go to chagne if i put it at 1.99 it may save it as 2.01 or 1.96. its kinda weird but maybe it has a scale it has to follow and just goes to the closest value? still havent been able to figure that one out

oange ss

iTrader: (50)

yes....

Doc99SS

iTrader: (2)

I can tell you for sure, Ford rates their injectors at 39.5psi... In print, its rounded off to 40psi. I work at Ford next to a fuely person.