- -
Exhaust Flames
(
http://www.clubcobra.com/forums/small-block-talk/42913-exhaust-flames.html)
| peterd |
06-28-2003 07:58 PM |
Exhaust Flames
I have just finished my 408 stoker which includes a FAST EFI unit. You plug in a laptop and set fuel maps and other parameters. The setup is good enough to drive however I still need some fine tuning. I am struggling with the problem of exhaust poping and flames appearing when I take my foot of the gas. What is this a symptom of.
|
| SCOBRAC |
06-28-2003 09:08 PM |
Problem?? sound like it's just rich enough. Seriously, you are pushing raw fuel out the exhaust. Yoo may need a little less injector or a calibration of the FAST unit. (is it able to be calibrated?)
This isn't as big a problem as it seems as long as it isn't frightening small children or spooking the livestock. Some people know when the mixture is just right by the color of the flame. You want a bright orange or redish flame. :LOL:
|
| Jim Werth |
06-29-2003 04:08 AM |
If you have an exhaust leak between your headers and side sidepipes, this can cause the flames. Thats what caused mine. I had 3-4 foot flames. Looked really neat at night. Jim
|
| Mestizo |
07-12-2003 06:53 AM |
Cool, where do you get a leak kit?
|
| aumoore |
07-12-2003 10:23 AM |
Flames in a Cobra? Cool
For what it is worth it is better to run rich than too lean. Rich will burn fuel but lean will burn parts.
|
| Mark IV |
07-12-2003 11:06 AM |
Maybe...
...you have the "exhaust igniters" that were on Blackcobras "original 427 with tons of horsepower Cobra?":3DSMILE:
Ah yes, the old days.....
Rick:D
|
| DavidWard |
07-12-2003 07:27 PM |
Are you using some type of fuel-air ratio meter for tuning? My bet is it's too lean. I'm running Wayne Presley's EFI stack system, and too rich will cause back-firing through the stacks. Too lean will cause popping and flames from the exhaust. I can cause exhaust flames at will by just turning the mixture knob towards the lean side.
David
|
| All times are GMT -7. The time now is 05:27 AM. |
|
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link:
