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North Dakota | There's a low milage International semi for sale that I'm interested in but the only problem is the engine only has 270 horsepower. The current owner says it was set up that way from the factory. I've seen other M11's around with 300+ horsepower. Just wondering what it takes to boost the horsepower. Would it cause more stress on the drivetrain? Are there any other concerns? |
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Clear Lake, IA | A lot depends on the CPL (critical parts list) from Cummins. To get the bigger numbers out of that engine it might need turbo, injectors, piston packs, etc. It all depends on how it was originally built. I have a ISM that is set at 410hp and 1450tq, it is one of the bigger truck specs for that engine. Get the engine serial number and have local Cummins dealer check the CPL and max hp/tq is for that exact engine. |
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M | Some cann be set up and some cannt. I bought a 330 and was told it could go to 370 (some can)but mine cannt . In mine the transmission isn't heavy enough.
Edited by shoop 9/9/2016 22:46
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Ohio | Just depends like the others said. We have a M11 set at 400 hp with an Allison behind it. |
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Eastern Shore of MD | +1 on the CPL determining whether it can safely be done to your engine or not. We have a m11 280 plus and turned it up to 330. All it took was a computer reflash. |
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Statesville, NC | Usually the transmission is sized to the engine hp. I have a M11 280 hp, and the transmission is a Fuller RTX11710C. I believe the first two numbers of the transmission are torque in hundred foot pounds, so 1100 ft. lb. rating. The bigger hp M11's are up around 1500 ft lbs torque. |
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Clear Lake, IA | Yep
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Any drawbacks to boosting horsepower on a M11 Cummins?
