AFM question
03-16-04, 11:31 AM
#3
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When modifying the intake for FMIC it seems to me like passing compressed & intercooled air through the AFM would be more efficient:
1) More air volume for the same pressure drop.
2) No wasted fuel during closed throttle blow-off.
1) More air volume for the same pressure drop.
2) No wasted fuel during closed throttle blow-off.
03-16-04, 11:49 AM
#4
I wish I was driving!
Originally posted by SureShot
When modifying the intake for FMIC it seems to me like passing compressed & intercooled air through the AFM would be more efficient:
1) More air volume for the same pressure drop.
2) No wasted fuel during closed throttle blow-off.
When modifying the intake for FMIC it seems to me like passing compressed & intercooled air through the AFM would be more efficient:
1) More air volume for the same pressure drop.
2) No wasted fuel during closed throttle blow-off.
03-16-04, 11:56 AM
#5
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You definately want to put it AFTER the FMIC... i don't think the AFM is going to like the 2-300 degree temps its going to see if it's inline BEFORE the IC.
the biggest difference i noted was when i ditched the thing all together. (haltech)
the biggest difference i noted was when i ditched the thing all together. (haltech)
03-16-04, 12:59 PM
#6
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Originally posted by scathcart
1) Volumetric restrictions don't care where they are placed, they still restrict; top end power will be the same.
1) Volumetric restrictions don't care where they are placed, they still restrict; top end power will be the same.
This effect diminishes at higher pressures, but up to 1 Bar it's fairly linear.
03-16-04, 01:02 PM
#7
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Originally posted by YearsOfDecay
You definately want to put it AFTER the FMIC... i don't think the AFM is going to like the 2-300 degree temps its going to see if it's inline BEFORE the IC.
You definately want to put it AFTER the FMIC... i don't think the AFM is going to like the 2-300 degree temps its going to see if it's inline BEFORE the IC.
Originally posted by YearsOfDecay
the biggest difference i noted was when i ditched the thing all together. (haltech)
the biggest difference i noted was when i ditched the thing all together. (haltech)
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03-16-04, 03:38 PM
#8
Engine, Not Motor
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Keep in mind that the S4 (and I believe S5 as well) AFMs include temp sensors. Also, it has been debated whether the S4 AFM will stand up to boost pressure in the long-term.
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