View Single Post
  #86 (permalink)  
Old May 18th, 2008, 02:35 PM
lazaris lazaris is offline
Senior Member
 
Join Date: May 2001
Location: NY
Trader Rating: (3)
Posts: 1,058
"When watching a F1 engine on a dyno, do you see exhaust flame out the exhaust during a power pull? No. You do see it during coastdown overrun. So fuel can definitely be ignited by a hot exhaust system, but why do you only witness it on a dyno during overrun?"

I believe you only see during overrun because of the pressure wave/pulse causing fresh air to be introduced into the pipe thus igniting the unburned fuel.
__________________
87 GN
9.52@147.82
Getting there.
Reply With Quote