What happens after 1.5bar?

Mike Miller mikemilr at blackfoot.net
Thu May 1 14:29:43 EDT 2003

----- Original Message -----
From: "Mihnea Cotet" <mik at info.fundp.ac.be>

> Yes, there is a maxMAF map in the chips, it's a 5 by 1 points map, thus 5
> MAF values for 5 RPM points, 2-3-4-5-6k RPM. When the actual MAF value
> exceeds the programmed value, then comes into play a second map that looks
> about the same but has lower values, thus lower air flow, which equals to
> the issue of not being able to have boost exceeding a certain level until
> the leak is fixed, or the maxMAF values raised.
> HTH,

> Mihnea

This is interesting, How does it "know" what gear I am in? I would assume
that I am flowing a lot more air at 3k rpm and 1.3 bar in 1st or 2nd than I
am at 2k rpm in 4th or 5th. Yet, the over boost cutoff always kicks in right
at 1.3 bar on the gauge. Can hold 1.2 in any gear, just can't exceed it.


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