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Scapegoat1
07-31-2007, 06:22 PM
:D This is the dyno sheet for my engine in the boat I just purchased:D
http://www.***boat.com/image_center/data/500/boat_2006_hat_012.jpg
http://www.***boat.com/image_center/data/500/Brian_HB_fax.jpg
WETTE VETTE
07-31-2007, 07:08 PM
Low BSFC leads me to believe the numbers are very optimistic. Typically BSFC numbers of .5 to .57 are the reality. If the fuel flow is correct at 320 lb and a .5 BSFC you would have 640HP and be running on the lean side. What is the correction factor?
Scapegoat1
07-31-2007, 09:05 PM
this a copy of what promarine fax over to me. Could you explain to me a little better don't really understand the terminoligy.
Sleeper CP
07-31-2007, 09:32 PM
Low BSFC leads me to believe the numbers are very optimistic. Typically BSFC numbers of .5 to .57 are the reality. If the fuel flow is correct at 320 lb and a .5 BSFC you would have 640HP and be running on the lean side. What is the correction factor?
Not in my experience. My BBF's have run BSFC's of .48 down to .366 and my small blocks from .50 to .41 . His numbers seem to be in line, the engine had a VE of 103% and a air/fuel of about 13:1. The numbers all add up to me:)
The only strange thing I see is, I haven't seen anyone do a 500 rpm step test in like forever.
Sleeper CP