Hi all,
I have a question that probably has an easy answer and if I knew more about how an induction system works on the different variants of the R-2800 engine I could probably answer it myself.
Why was the maximum boost pressure with ADI for the -8W and -10W engines set at 60" Hg MAP, while the -59 found in the P-47 was limited to 56" Hg MAP? These pressures of course were with 100/130 fuel which had a much lower detonation point then the 100/150 fuels used in ETO from mid-1944 onwards. What I'm seeing is that the engine used by the P-47 delivered roughly the same power at 56" Hg as the engines found in the F4U and F6F when they are operating at 60" Hg. I'm figuring it had something to do with the turbocharger system but that's just an educated guess on my part. Can someone more educated in this subject set me straight?