New RAM HD 1000 lb-ft

ShinerBock wrote:

twodownzero wrote:

ShinerBock wrote:
So since Cummins increased power output by increasing boost, does than mean the engine will fall apart just like people say it will if you increase power by doing the same with a tune?

33 psi isn't an increase anyway; my truck is 14 years old and makes that. It might be more than the 4th gen trucks were making, but there's nothing about that boost pressure that'd make me nervous. But as people above mention, total boost doesn't tell the whole story if the rest of the turbo system is out of whack.

It is an increase from stock 6.7L. Before I deleted and tuned my 2014 CTD, it peaked out at 30 psi and fall after that. After delete and tune it will go to around 38 psi. I plan on putting compounds later on this year and we will see where it goes from there.

I wonder how much actual airflow increase 3 psi makes? Boost in and of itself isn't going to increase engine output much, if anything, anyway. But if it facilitates burning more fuel without increasing emissions to unacceptable levels, then there can be a significant change in output. On a gasoline engine, fuel has to be in near-perfect proportion to air, so this is not the case, but with diesel, more boost might make for slightly better/more complete combustion, but more boost alone doesn't increase the actual fuel amount delivered to the engine (which is ultimately necessary for any significant power output increase, unless the current combustion is incomplete/poor).