Home » Public Forums » GMCnet » Electronic QuadraJet and factory Electronic Spark Control (CCC, ESC, E4ME, E4MC, E4MED, E4MEF)
| Re: Electronic QuadraJet and factory Electronic Spark Control [message #333682 is a reply to message #333679] |
Tue, 19 June 2018 06:26   |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
Karma:
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Those feedback Qjets were a stopgap measure until true EFI got sorted out. Other manufactuers were soing much the same starting with the Mopar 'lean burn' system up 75 until about 85.
I hasd one factory stock on an 84 trans am. Worked well when it was stock, but even mild mods caused the ECU to flip out. Tried some tricks to modulate it. Eventually gave up and went to a non electronic Q jet and later an Air sensors EFI.
The ECU also controlled the ignition timing and wasnt adjustable or easily tunable. Had to replace the dizzy also.
AFAIK, all those are 750 CFM. 800 CFM Q jets are comparitively rare. They have larger primarys
The feedback system only worked in closed look [idle and cruise] conditions and used a narrow band sensor. open loop [operations were mechanicly controled as they always had been.
Bottom line is I dont think its worth messing with. If you want to invest the time and money to use an aftermarkert ECU to control it it might work but you would be far better off with at least a TB type FI or Fitech type self tuning unit
76 Glenbrook
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Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 00:48 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 15:12 |
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 16:15 |
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 18:00 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 19:59 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: mrgmc3 on Tue, 19 June 2018 22:04 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 19 June 2018 22:34 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Wed, 20 June 2018 12:52 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Thu, 21 June 2018 12:05 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Sat, 30 June 2018 23:03 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Sun, 01 July 2018 02:37 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Sun, 01 July 2018 08:36 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
By: jimk on Sun, 01 July 2018 10:13 |
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Sun, 01 July 2018 16:21 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: [GMCnet] Electronic QuadraJet and factory Electronic Spark Control
By: jimk on Sun, 01 July 2018 19:16 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Sun, 01 July 2018 19:14 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 03 July 2018 03:53 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 03 July 2018 10:18 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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Re: Electronic QuadraJet and factory Electronic Spark Control
By: GMC2000 on Tue, 03 July 2018 17:57 |
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Re: Electronic QuadraJet and factory Electronic Spark Control
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