Quote:
Originally Posted by jtbo
so at the moment there is no knowing what kind BSFC map there is for this engine.
|
With no BSFC or points to compare ... there is no knowing if the engine is even average ... it could be great ... or it could be crap.
If you don't know the BSFC do you know any information that can be worked backwards to get you at least some individual points for comparison?
Things like ... In Vehilce X that has __ CdA and ___ Weight , it achieved __ MPG at a steady state of __ MPH ... in __ Slope , ___ Wind, etc.... if you know enough about a given set of conditions and the performance it got under those conditions , some points on the BSFC could be estimated fairly well.
For example ... I've seen some automotive turbo Diesels run at ~39% Efficient and I've seen others run at ~15% Efficient ... ~15% is crap ... ~39% is very good ... so , what criteria do you have to be able to narrow down the range more for this specific engine you are interested in?
Or said another way ... you say you haven't found anything to compare to it ... if you don't know how efficient it is ... what are you comparing?