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WOT plenum manifold pressure

 
Old 06-03-2015, 05:59 AM
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robt964
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Default WOT plenum manifold pressure

Hi chaps,

Does anybody have any data that plots the WOT(wide open throttle) plenum mBar pressure against engine RPM? (stock engine)

So basically I'm after a plot of MAP pressure with your foot firmly planted in 4th gear from 3K -> 6.5K

Anything you've got will be useful for comparison purposes.

Cheers

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Old 06-03-2015, 07:09 AM
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how much negative pressure are you measuring? i have the logs will upload them later
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Old 06-03-2015, 07:30 AM
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That would be great - thank-you. I can't recall off hand. I'll log a motorway power run this evening on the ECU to get my figures. I'm looking for the data for comparison purposes to rule in/out high RPM running issues.
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Old 06-03-2015, 07:41 AM
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This is without the stock airbox and a 3" cone filter, start pressure is 100kpa
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Old 06-03-2015, 07:46 AM
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This is with stock airbox and pipercross filter, start is 100kpa
I think this is very high pressure loss. But all the air has to flow through a square hole

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