2012 isx coolant pressure

[SemiSweet]

An old co worker stopped by the yard yesterday and asked me how my Cummins is running and how my Jake’s work. Then he proceeded to tell me that the company that he works for deleted his 871 in the kenworth he is driving and that his Jake’s are terrible…..I knew right away and said I bet you have a non vgt turbo on it, he said yes . I asked how many times the head has been off he said three ! I laughed and said if you want that thing to run properly tell your boss to put the factory turbo on it and I’ll give you a number for a guy who can tune it right or that head will be coming off again. Then he bragged how he has the most power and guys are jealous but….the engine fan stays on all day.
There is some serious misinformation up here in Canada with tuning and a lot of money wasted. Just a little story I thought I’d share