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Location:
New Zealand
Registered:
May 2002
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Re: Attn: bluewire.
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Sun, 23 June 2002 20:34
 
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AFM = airflow meter.
But I think they measure this by how much the flap is open.
Now, pressure builds as soon as you have a restriction, so... at 1psi the AFM will be wide open, whearas in NA, this probably wouldn't happen until 6000rpm or so.
Soooo, if you can make the AFM stiffer, so that it only opens full at 7psi or so.... then you'll have some degree in variability of fuel in relation to boost.
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I am talking about fuel injectors.
Basically, relating to the AFM door opening early would tell the ECU to give full fuel..... way over rich for only 1psi or so.
Secondly, if you run a bigger AFM, I think you will get the same reading at the computer.... but naturally the door is much larger so much more air (volume) is flowing.
To make up for the increase in air volume, bigger injectors will be needed all round.
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Hope this clears my thoughts up
Karl
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