Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

cfi wiring???

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Old May 6, 2012 | 08:37 PM
  #1  
jmuehler's Avatar
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From: Rolla, Missouri
Car: 1982 Z28
Engine: 355
Transmission: th350
Axle/Gears: factory 7.5, 4.11s
cfi wiring???

Ive recently swapped my 82 z28 crossfire injection to a regular 4bbl with a mechanical fuel pump. now I need to know what wiring i can eliminate. could use any help i can get.

thank you
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Old May 7, 2012 | 04:10 PM
  #2  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You can eliminate all of the wiring that is part of the bundle that goes to the passenger side wheel well. I wouldn't recommend cutting it, though, as it can all be removed intact.

If you have an automatic transmission, you should do something to hook up the torque converter clutch lock-up. There are kits available, or you can rig it up yourself if you like (there is a tech article on it linked from the TGO homepage).

Also, if you haven't done so already, you need to drop the tank and remove the in-tank electric pump (unless you power it to feed the mechanical pump, and use a return regulator to control fuel pressure). There is a sticky in the top section of this forum that describes how to convert an in-tank electric pump pickup to mechanical.
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Old May 7, 2012 | 10:29 PM
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jmuehler's Avatar
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From: Rolla, Missouri
Car: 1982 Z28
Engine: 355
Transmission: th350
Axle/Gears: factory 7.5, 4.11s
Re: cfi wiring???

would my 3 speed auto have a lock up tho?
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Old May 7, 2012 | 11:19 PM
  #4  
8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: cfi wiring???

if it's the original th200c it will have the lockup.
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Old May 8, 2012 | 10:55 AM
  #5  
jmuehler's Avatar
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Joined: Apr 2012
Posts: 30
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From: Rolla, Missouri
Car: 1982 Z28
Engine: 355
Transmission: th350
Axle/Gears: factory 7.5, 4.11s
Re: cfi wiring???

Alright ill look into that some more. Thanks for the help
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