How To: Ditch EFI and keep TBI PCM for 4L60E Control.

[Markv]

Hang in there gimmel1, I am working on pics right now, the wife has to do it, I don't know how. I want to post good shots I have an extra carb, so I am using it as a prop. I will give you bolt size and thread counts, it will make it easy for you and everyone else.
Like I said 2 bucks worth of bolts, and a few nuts, and your ready to go! With more adjustably.
MarkV

 

[fun4me]

I have come up with an idea to use a TP sensor on a non choke carb without paying Holly $60.

I removed the screw from the throttle shaft

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Then I bought some thumb screws & ground the end flat.

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I installed the thumb screw in the throttle shaft

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Then I took a piece of sheet metal & cut it to fit the carb base gasket. I left the "tab" so I could mount the TPS

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I cut a hole where the TPS will be mounted.

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Then I bent the tab & drilled two holes to mount the TPS. Then I mounted the plate under the carb using two gaskets.

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I had to bend the fuel line to clear the TPS "bracket".

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[FastOrange]

Nice!

 

[fun4me]

Transmisson shifts but the torque converter will not lock up. Any ideas?

 

[fun4me]

Does anyone have any ideas why the converter will not lock up?

 

[Markv]

I have read that the coolant temp sensor , and the brake light switch will keep the converter from locking.
PS I like the way you set up the tps.

 

[fun4me]

Coolant temp sensor is working, checked with a DVOM. Brake lights only work when pedel is depressed.

 

[fun4me]

The transmisson is shifting early but that is because I changed the gears. It was shifting early before I changed to a carb. But the TC was locking up. I'm gonna do this mod http://www.tbichips.com/DRAC/ to change my speedometer & my shift points. Maybe it will lock up then.

 

[siggy_freud]

How is this transmission workaround working out for everyone? I see the OP is now using a TH-350. Any particular reason?

I'm going to be doing an LS1/4L60E swap into an old Camaro. If I can wire up a TBI computer to work it, I'll do the tranny first and delay the Engine for 6 months, but wouldn't want to do so at the cost of burning out the transmission.

Alternately, I might just live on the TH-350 if going to overdrive before the LS1 swap means I'd have to drop 800 on a standalone controller.

 

[MOBS]

siggy, if ya need a temporary OD trans, a 700 should work for a while.