Hell, mine idles at 3.8 g/s. Just give your car what it wants and call it a day. 
Desirable idle air intake number?
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From: Fort Worth, TX
Desirable idle air intake number? Whats the target air intake value at idle in g/s? I've read somewhere that its supposed to be something like 20 g/s? I've been able to read with my predator tuner in lbs/m, and with the help of Gordy M. we read the g/s at like 6-7 at idle?! If I were to have 20 g/s my rpms would be like 2,000, so whats the story on this?
Thanks!
Adrian
Thanks!
Adrian
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From: Fort Worth, TX
Nice numbers Jub! I made 441 and 400 with a slightly larger cam! We have a pretty even vehicle I think.
This makes me wonder now, because i have like 6-8 gm's intake at idle, and when I'm driving coming to a light and let out the clutch, my engine almost dies on me, so i wonder if my throttlebody plate isn't open enough. Guess its the perfect day to test it out! Of course, if I were to increase the air intake at idle, my idle will be very high...will my computer compensate for this?
Thanks!
Adrian
This makes me wonder now, because i have like 6-8 gm's intake at idle, and when I'm driving coming to a light and let out the clutch, my engine almost dies on me, so i wonder if my throttlebody plate isn't open enough. Guess its the perfect day to test it out! Of course, if I were to increase the air intake at idle, my idle will be very high...will my computer compensate for this?
Thanks!
Adrian
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From: Warner Robins, GA
Originally Posted by Haans249
Nice numbers Jub! I made 441 and 400 with a slightly larger cam! We have a pretty even vehicle I think.
This makes me wonder now, because i have like 6-8 gm's intake at idle, and when I'm driving coming to a light and let out the clutch, my engine almost dies on me, so i wonder if my throttlebody plate isn't open enough. Guess its the perfect day to test it out! Of course, if I were to increase the air intake at idle, my idle will be very high...will my computer compensate for this?
Thanks!
Adrian
This makes me wonder now, because i have like 6-8 gm's intake at idle, and when I'm driving coming to a light and let out the clutch, my engine almost dies on me, so i wonder if my throttlebody plate isn't open enough. Guess its the perfect day to test it out! Of course, if I were to increase the air intake at idle, my idle will be very high...will my computer compensate for this?
Thanks!
Adrian
Last edited by jub jub; Jan 20, 2006 at 12:19 PM.
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From: Fort Worth, TX
I actually, do not have a scanning software only the (predator, which reads lbs/m and i used onlineconversions.com to convert to g/s), and I have never tuned my vehicle, so I don't know exactly what that means, only an idea. But its quite obvious that when I had it tuned, those value probably weren't tuned properly, so I'm guessing that messing with my idle air flow probably isn't going to do anything except make matters worse.
But just for testing purposes, i'm going to crack my plate open so I'm flowing like 16-18 g/s ,and then reset my TPS to read 0, and see what happens.
Thanks!
Adrian
But just for testing purposes, i'm going to crack my plate open so I'm flowing like 16-18 g/s ,and then reset my TPS to read 0, and see what happens.
Thanks!
Adrian
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Just to check again, the GM.MAF reads the intake flow from the MAF correct? So, I'm going to shoot for a value around 16-18 gms for that, but what about my IAC valve, is it going to compensate depending on what the tune says my idle air flow should be? And also, can you have an idle air flow of 16-18 but still keep relatively stock idle? What sets the idle on the vehicle?
Thanks, I'm a newbie I know, but I'm trying to solve this pain in the *** problem,
Adrian
Thanks, I'm a newbie I know, but I'm trying to solve this pain in the *** problem,
Adrian
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Joined: Dec 2003
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From: Warner Robins, GA
Originally Posted by Haans249
Just to check again, the GM.MAF reads the intake flow from the MAF correct? So, I'm going to shoot for a value around 16-18 gms for that, but what about my IAC valve, is it going to compensate depending on what the tune says my idle air flow should be? And also, can you have an idle air flow of 16-18 but still keep relatively stock idle? What sets the idle on the vehicle?
Thanks, I'm a newbie I know, but I'm trying to solve this pain in the *** problem,
Adrian
Thanks, I'm a newbie I know, but I'm trying to solve this pain in the *** problem,
Adrian
The GM.IACDES is based on the running air flow or RAF as some call it and is what controls the IAC or base idle. Of course, other air measurements are based on this figure. It is here where I'm a little confused as to what these figures are in relation to each other.
My car runs fine the way it is so I'm not to worried about it. I would however, like to understand the relationship between all the IAC pids and dynamic airflow.
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From: Fort Worth, TX
Hmm, this maybe pointing towards the direction of problem that I'm having. I have a CAI, but I'm not sure that my MAF has been remapped. Maybe this is an issue...
