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There's really zero evidence that reliability is significantly altered. That's an unsubstantiated claim. Where's your evidence for this? I have provided examples showing the manufacturer has no concerns with this engine at this power level pulling over 4x my weight in conditions I will (hopefully) never see.Actually what pencils in my head is HP and TQ vs long term reliability. Have you not had physics? I will take the reliability bonus. Why would they need to de-rate if the military expectations of a 35K life (to quote you)?
By the way, the Steyr 12m18 only has 177hp.
The Steyr is a manual transmission and that immediately accounts for an additional 10-15% power at the wheels. Source: Just so happens I own a performance shop that builds race cars and I have an in-ground AWD chassis dynamometer (DynoJet 424XLC-2). I do this literally for a living. Also the Steyr trucks are from a different era of warfare and as they relate to the FMTV's they pretty much only share the cab design which is a superficial similarity only. The entire drivetrain, vehicle weight, and operational performance requirements are different. The Steyr weights about 12,500 lbs while the lowly M1078 A0 weighs around 17,500 lbs. Apples to Oranges comparison really.
As such I would like to think I have a decent "sense" for what additional power output one can reasonably and reliably expect out an engine beyond factory ratings - and this 370 HP tune is WITHIN factory ratings. I have ZERO concerns.
Throw all the rocks you want at it. I'll be driving it and reporting my experience with it. So if there's any issues I'll let the forum know. Till then - if you have ACTUAL evidence of your claim against it's reliability please post it!
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