455 efi conversion

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Old Feb 13, 2012 | 08:01 AM
  #41  
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Mine will spit and pop gray smoke and shoot flames out the throttle body
Kind of like If the distributor was 180 degrees out
Old Feb 13, 2012 | 09:25 AM
  #42  
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Maybe it is!
If it's really at 10-15btdc on #1 you should not be spitting anything unless there is a crossed wire or you don't have enough fuel in it.
Do you have an ignition box? What kind? Is it wired right?
Old Feb 13, 2012 | 09:35 AM
  #43  
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Running edis 8 wasted spark
When I started it on 1357 then connected 2468
It was running 9 btdc
Old Feb 13, 2012 | 10:06 AM
  #44  
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Here is the video after I got it started on 1357 and then connected 2468
http://www.youtube.com/watch?v=2md_E..._order&list=UL

Here's what happens when all 8 coils are pluged in
http://www.youtube.com/watch?v=be5yaZErdPA
Old Feb 13, 2012 | 11:58 AM
  #45  
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If you're using an edis have changed it to reflect the different firing order?
Old Feb 13, 2012 | 12:11 PM
  #46  
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This is how I have the edis 8 wired

http://s201.photobucket.com/albums/a...er_media_share
Old Feb 13, 2012 | 03:28 PM
  #47  
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Originally Posted by cutlassefi
Maybe it is!
If it's really at 10-15btdc on #1 you should not be spitting anything unless there is a crossed wire or you don't have enough fuel in it.
Do you have an ignition box? What kind? Is it wired right?
i am defiantly at 9 or 10 degrees btdc

and i the in there is way too much fuel cause the bottom of the intake are wet when i look down the throttle body
Old Feb 13, 2012 | 03:57 PM
  #48  
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Originally Posted by hessdawg
i am defiantly at 9 or 10 degrees btdc

and i the in there is way too much fuel cause the bottom of the intake are wet when i look down the throttle body
Looked at the wiring, looks fine as far as firing order goes but in what sequence is the box firing? Check your coil input voltage to make sure you're not losing too much when you hook up all eight.

Remember, unlike a carb your EFI will deliver the fuel it's programmed to at any given speed/load, whether it's firing right or not. And the injectors in that TB are typically designed to run at about 18psi, what's your regulator set at?

And in general, you'll have fuel on the bottom of the throttle blades any way as the air is continually moving around in there.

Last edited by cutlassefi; Feb 13, 2012 at 04:06 PM.
Old Feb 14, 2012 | 10:27 AM
  #49  
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The edis fired ABCD,ABCD

The Holley 4d says 10-15psi in the manual I have. I have mine set at 10 and it's still way to muchfuel at idle . Should I turn it up to 18 ???
I have allot of black smoke at idle even with all the ***** on the Holley control box turned all the way down
Old Aug 2, 2012 | 10:51 AM
  #50  
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Got her running good


http://i201.photobucket.com/albums/a...8/f663bff2.mp4
Old Aug 2, 2012 | 11:04 AM
  #51  
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Sweet!
Old Apr 7, 2014 | 09:26 PM
  #52  
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In the car and starting great

Old Apr 7, 2014 | 09:29 PM
  #53  
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Nice. Sounds really good.
Old Apr 8, 2014 | 04:23 AM
  #54  
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Nice but it sounds like it's hunting a bit. Probably needs more fuel.

Last edited by cutlassefi; Apr 8, 2014 at 04:25 AM.
Old Apr 8, 2014 | 08:05 AM
  #55  
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Originally Posted by cutlassefi
Nice but it sounds like it's hunting a bit. Probably needs more fuel.
Yes still needs lots of tuning
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