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My son brought his first car today, 2001 GU with a replacement 2004 motor. Drove it about 300kms home and I was wondering about Boost and EGT's. The boost never got above 8, is this normal? On long uphill sections EGT was up around 500c, is this normal? EGT most of the time was 350-450c. The car has a catch Can fitted and did have Dawes Value which the previous owner removed as he thought it lowered the boost even further. He gave me the removed Dawes Value.
Is removing and cleaning the intercooler a good place to start? I believe managing EGTs is an important part of engine life.
Also is there a max upper limit you never want EGTs to exceed?