Carb help with 84 vette!
Burning Brakes
Joined: Sep 2000
Posts: 806
Likes: 0
From: Baton Rouge LA
Re: Carb help with 84 vette! (84 BRONZEBOMBER)
Ain't gonna happen. Go here for crossfire info:
http://www.crossfire.homeip.net:81/cftest/
http://www.crossfire.homeip.net:81/cftest/
Guest
Posts: n/a
Re: Carb help with 84 vette! (84 BRONZEBOMBER)
Bad News;
The auto tranny receives TCC signal from the ECM based on inputs to the ECM, namely Throttle position (TV cable) determining oil press and shift points, this may prevent the conversion.
Good News;
The dash receives sensor input directly then sends a data stream to ECM for mileage/range so your dash will be OK as long as you keep sensors on your engine. You will loose mileage and range measurement, that's all.
The auto tranny receives TCC signal from the ECM based on inputs to the ECM, namely Throttle position (TV cable) determining oil press and shift points, this may prevent the conversion.
Good News;
The dash receives sensor input directly then sends a data stream to ECM for mileage/range so your dash will be OK as long as you keep sensors on your engine. You will loose mileage and range measurement, that's all.
Pro
Joined: Jan 2001
Posts: 681
Likes: 2
From: Newton (Wichita Area) Kansas
Re: Carb help with 84 vette! (84 BRONZEBOMBER)
Forum member 'Yoslambo1@cs.com' has done exactly this swap in an '84 with a TH700R4. He faxed me an old magazine article about the swap. I'm surprised he hasn't posted yet.
Melting Slicks
Joined: Mar 2001
Posts: 2,149
Likes: 303
From: Timra, Sweden
Re: Carb help with 84 vette! (84 BRONZEBOMBER)
The dash uses different sensors than the ECM. You will only lose the MGP readings. To use the th700r4 you need a bracket for the TV-cable and something that control the TCC. There are stand-alone control units available. You will also need to replace the HEI with a vacuum advance type.
[Modified by JoBy, 3:18 PM 8/5/2002]
[Modified by JoBy, 3:18 PM 8/5/2002]
Safety Car
Joined: Sep 2001
Posts: 4,095
Likes: 1
From: modland CT
Re: Carb help with 84 vette! (84 BRONZEBOMBER)
Anyone know how to set up a 383 with a carb with a 700r4? I want to keep my dash working with it.
Safety Car
Joined: Sep 2001
Posts: 4,095
Likes: 1
From: modland CT
Re: Carb help with 84 vette! (JoBy)
The dash uses different sensors than the ECM. You will only lose the MGP readings. To use the th700r4 you need a bracket for the TV-cable and something that control the TCC. There are stand-alone control units available. You will also need to replace the HEI with a vacuum advance type.
[Modified by JoBy, 3:18 PM 8/5/2002]
[Modified by JoBy, 3:18 PM 8/5/2002]
Burning Brakes
Joined: Apr 2001
Posts: 904
Likes: 0
From: Langley, BC, Canada
Re: Carb help with 84 vette! (yoslambo1@cs.com)
you could always leave the ecm in to control the tcc and spark. You wont loose the dash readouts then. Theres some articles on http://www.diy-efi.org about doing this. I beleive you only need 3 or 4 sensors. Best of both worlds, massive air/fuel flow. Customizible spark curves.
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