Question on the 700R4 trans

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12-06-2018, 07:50 PM

Ct1987

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Car: 1987 Firebird Formula

Engine: CharlesOdoryOB

Transmission: 87587369775

Axle/Gears: CharlesOdory

Question on the 700R4 trans

Hi, I have a 1987 formula with the 305 engine and the Rochester cc carb. I would like to change to an EFI system. My question is, if i remove the carb with all the sensors that the ECM needs, what will happen to my transmission. I understand the ECM controls the lock out, is it using input from one of the carb sensors??

Thanks in advance for your input.

Louis

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12-06-2018, 07:57 PM

NoEmissions84TA

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Car: 84 TA orig. 305 LG4 "H" E4ME

Engine: 334 SBC - stroked 305 M4ME Q-Jet

Transmission: upgraded 700R4 3200 stall

Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars

Re: Question on the 700R4 trans

Start here: https://www.thirdgen.org/torqueswitch/

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12-11-2018, 09:52 AM

RBob

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Car: check

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Transmission: check

Re: Question on the 700R4 trans

Quote:

Originally Posted by Ct1987

TCC lockup is mostly a function of throttle position (TPS), and vehicle speed. The new EFI system should be able to take care of lockup. If not look into a different EFI system.

RBob.