Hawk81A-2

[MaxGunz]

Originally Posted by JtD

Thanks for the information. I still don't really get why the extra power is not supposed to be related to application of higher boost, in particular where Plane-Eater says he found that mentioned. If you built two alike engines just with different tolerances, the high quality version might be somewhat more powerful due to higher efficiencies (less losses), but that's not going to be excessive unless the standard production quality is abysmal. You'll need to increase boost or rpm in order to get more power out of it.

You would have to check the standards of the engine makers in those times. I don't think that P&W held Rolls Royce tolerances, FWIW. Maybe see how they compared to Detroit automotive. A whole lot depends on how many and which parts they hand-matched.

The difference can be a stock engine vs a "blueprinted" engine.