MAF for red injectors

[Prawny]

interseting chris, the quoted figure has been 38% for as long as I can remember, but I'll be honest, I've never felt the need to actually check that!

You're dead right though, just based on the OD's of 70-80mm it's not 38%. D'oh!

What is odd then, is that the sensor does max at 320ish bhp, which would make my numbers correct, but the maths says that you're correct.

Niki has always told me the VR6/AGU clips at 320bhp, and my 307bhp@176g/s falls into that 320bhp clip nicely.

Perhaps the scaling isn't 100% linear?

[Chris.]

Indeed.  What does the 3" off a S3 come in at then in terms of % increase?  However, I believe the maf sensors are different but not sure if fitment is same/different.

Im not sure how it can read more, maybe the maths arent 100% for the physics?

[Prawny]

the 3'' off an S3 is exactly the same OD as the VR6 housing, so I'd assume the internal dia is the same too?

Housings are different yes, the two bolts which hold the MAF into the housing are 90 degrees rotated from the AGU