Treating a turbo (TN) engine like a non-turbo engine, to make it last longer?

Peter wrote:

It’s a high price to pay though…

Down low, it’s true you “pay” more, but up in the FLs, the turbo is paying out dividends

Very interesting thread.

No mention has been made, however, of three important factors:

• Increased exhaust back pressure means you need more MP and also higher inlet air temp on an identical TN engine vs NA for same power @ same conditions. The MP required is even higher if you have to surmount the pressure loss of an intercooler. At high altitude CDT on our TSIO-520 is approaching 100C
• At high altitude the overall equivalent engine system CR (factoring turbo CR plus cylinder CR) is much higher than just the cylinder CR and results also in efficiency much closer to NA, and better than at low altitude (adding to more efficient aerodynamics)
• Turbo exhaust reliability is as much if not more related to proper installation than engine use

Hopefully some more food for thought