PPRuNe Forums - View Single Post - A Little Gem from CASA Experts
View Single Post
Old 13th Apr 2018, 10:05
  #298 (permalink)  
Lead Balloon
 
Join Date: Nov 2001
Location: Australia/India
Posts: 5,287
Received 419 Likes on 209 Posts
Originally Posted by Bend alot
Sorry have not read all posts and not seen such a question.


22 BTDC would as more time to burn more fuel, the more fuel burnt in a sealed chamber has more energy, thus more HP.


Since the piston in a cylinder moves a greater distance in the first 90 degrees of rotation of the crank shaft than the second 90 degrees, it is desirable to have as much fuel as possible burnt in the cylinder at 0.000001 degrees after TDC.


Sea-level you refer is not just the pressure @ 16,000 feet temp will play a large factor - https://en.wikipedia.org/wiki/Standard_sea_level


Using a "pressure" only and insisting it is Sea Level is - well wrong!
Now I get it. You’re a comedian!

“it is desirable to have as much fuel as possible burnt in the cylinder at 0.000001 degrees after TDC.”

That’s genuinely hilarious. Comedy gold!
Lead Balloon is offline