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The amount of boost a Cummins motor can handle varies depending on the specific model and modifications. Generally, stock Cummins engines can handle around 30-40 psi of boost safely, but with performance upgrades and aftermarket parts, they can tolerate higher levels, often reaching 50 psi or more. It's essential to consider factors such as fuel quality, tuning, and overall engine health when determining boost levels. Exceeding safe limits can lead to engine damage, so proper tuning and monitoring are crucial.

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1w ago

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