Boost levels

[Brett Dikeman]

At 6:59 PM -0600 4/28/01, Jon VonOhlsen wrote:

>Check out http://www.sjmautotechnik.com/
>as the boost mapping is decribed there. I am also in Denver and I 
>also see about
>1.2 bar when floored in 3rd. At lower elevations it is 1.3 bar. I suspect
>strongly that our cars boost is being controlled by the spring ONLY. 
>This should
>result in a fault code, but I do not get any fault codes. 
>Typically, one should
>see around 1.4 bar stock, and it should come on around 3K.


Most turbo ECUs have an altimeter module that contributes to the 
boost setting you're given.  The 200q20v, for example, limits boost 
above 12,000 feet quite dramatically to avoid overspooling the turbo.

Brett