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ShinerBock's avatar
ShinerBock
Explorer
Jul 03, 2019

Performance/Efficiency versions of Cummins 6.7L

It appears that Cummins is doing the same thing to their 6.7L engines that they have been doing with the larger on highway engines for the past few years by making a performance version and an efficie...
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twodownzero's avatar
twodownzero
Explorer
Jul 04, 2019
IdaD wrote:
I'd take the more efficient option. My Cummins is rated 370/800 and I've never encountered a situation where I thought I needed any additional power.


Mine is rated at 325/610 and I certainly could use more going up the Rockies. It just creates heat an wear though; probably safer to back it down.

I'd buy the more efficient option. A 10% hit in power is nothing. Both will do the job, one will just do it faster.

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