lml@lancaironline.net Mailing List Archive

Peak EGT always occurs at a F:A ratio of about .067... period. The FF at that peak is based on the mass airflow, not the CR of the engine.

The higher CR engines are more efficient at turning avgas into HP.

Walter

On Dec 2, 2006, at 8:22 AM, colyncase on earthlink wrote:

The HP multiplier for LOP is based on the BSFC(min). In the engines with
8.5:1 CR it is 14.9. In the 7.5:1 engines it is about 13.7.

Walter

Walter, do 8.5:1 engines peak at the same, higher, or lower fuel flow?

(I think this amounts to asking if the displacment is actually the same,

it would be if the crankshaft is the same)

If the same, then an 8.5:1 engine has 9% more power at peak. right?

Colyn