05-13-2011, 04:15 PM
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#11 (permalink)
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Enthusiast Member
Join Date: Mar 2011
Location: Austin, TX
Posts: 279
Drives: '11 Gunmetal 370Z MT
Rep Power: 14
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Quote:
Originally Posted by 98intrigue
That is the culprit to the MAF maxing out, but we are not sure why it threw a code for a bad throttle body. It would make sense that since the driver's side MAF was getting about 20% more air than the passenger side MAF, maybe the driver's side throttle body was trying to compensate and open more than then it through a code and went into limp mode? But then why after hooking it all back together about 2 hours later, it ran fine...even after probably 5 dyno pulls?
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Yeah like I said, that MAF on the passenger side bend is not gonna be able to get an accurate reading. Think about it, the flow of air through a bend is not equal across the entire cross section of pipe. There's going to be a gradient of different flows throughout. The MAF only measures flow across it's hot filament which is only a specific point in that cross section. There's no way for it to get an accurate average of the entire cross sectional area.
Here's an example of how flow changes through just 30degrees of bend.
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im still wondering why not mount the MAF's before the Split to each TB!
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if you did that they would be reading 2x as much flow each.
Last edited by ChipsWithDips; 05-13-2011 at 04:22 PM.
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