Originally Posted by
Marc sierra
But it also says the boost is gradually reduced to 0.3 bar above 6000 rpm or with ACT's above 70 °C.
It is true for a standard chip. Although the lowest value you will get depends on the waste gate and could be a little higher.
Look at the boost control table and the influence of the air temp in the software. (Amal Map and Amal ACT multiplier Map). See (almost at the bottom):
http://bigturbo.co.uk/main3.htm