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K1W1 wrote:
"CAT will also have you believe there is no de rate at up to 50 Deg C.inlet air temp."
Cat very clearly states that the rating conditions for 3500 and smaller engines are based on either SAE or ISO standard conditions of either 25 deg. C or 27 deg. C inlet temperature. Power will drop off above those temperatures.
3600 series and C280 engines are rated at 45 deg. C to the turbo.
Power will drop off above that temperature.
The specs are very clearly defined and there isn't much faith based engineering involved so it is unclear where the misunderstanding could have come from.
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