[s-cars] hot intake temps = higher boost???

[S4audinut at aol.com]

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In a message dated 11/15/2002 3:07:42 PM Eastern Standard Time, iduff at rcn.com
writes:

> On my stock 95 S6 when ambient temps are approx. 85
> deg F and up, I will see boost pressures of 16-17 psi.
> When ambient temps fall, so does max boost, down 1-2
> psi.  It is my understanding (from this list) that the
> ECU allows higher boost at higher ambient temps.  Is
> this correct?  I thought the cooler the air entering
> the combustion chamber, the less chance of detonation.
> Therefore higher boost levels could be run with
> cooler intake temps.  Thus the reason for happersizing
> the IC.
>
> What am I missing?
>
> Jeff Hemmerlin
> 95 S6 stock
> 84 4kqt QLCC &1.8 bar spring
>
>
>

You are probably loosing boost due to operating temps tripping a boost/ fuel
cutback. When temps are higher outside thay are a lot hotter in the engine,
even if you hoopersize your IC. Hard to reduce below ambient without using
liquid gas or ice cooling. Never heard that the ECU let you boost higher when
temps werew up, who told you that?
Rod