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Also looks to be a tool for the commercial side of cummins. The ISB 5. 9 shows only commercial applications. But it may show what is possible for our rigs.
I was just messing with that yesterday. For every combo I input, the system told me 2150 RPM was the sweet spot. Other than that, it seemed pretty useless (but interesting) for our application. I don't know which version of the ISB it applies to.
I was trying to dig up the Performance/Upgrades section of www.cummins.com I know for a fact they have one I have been on it ... they had package deals with Fueling/Timing boxes ECT.
BUT the pages are gone .
While poaking around I found this thing ... . Kind of useless to me I guess.