robt964

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

neffets

how much negative pressure are you measuring? i have the logs will upload them later

robt964

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.

neffets

This is without the stock airbox and a 3" cone filter, start pressure is 100kpa

neffets

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