C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Converter lock up

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Old Oct 1, 2002 | 09:34 AM
  #1  
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From: Manassas VA
Default Converter lock up

Would it hurt anything to install a toggle switch to lock up the converter and run it that way on the street? The reason I ask is when driving around at 25 to 35 mph, and give it about half throttle it will rev up but dosnt seem to be moving out. It just dosnt have the throttle response it did with the orig. converter in place
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Old Oct 1, 2002 | 11:38 AM
  #2  
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From: LUFKIN TX
Default Re: Converter lock up (Red 86 4+3)

I just installed a switch on my 92. Jack your car up and unplug the harness that plugs into the transmission, turn your key to the on position and find the hot wire. Splice into the hot wire and add a toggle switch. This is the power wire for the lock - up converter. Your post says that you want to lock the converter up, but I would suspect that you would want it unlocked. :yesnod:
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Old Oct 1, 2002 | 03:49 PM
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From: colorado springs co
Default Re: Converter lock up (Red 86 4+3)

I installed mine by splicing into the converter lockup switch on the brake pedal just under the driver's side. The instructions come with the toggle switch which can be purchased from Mid-America. You do not have to jack the car up to install this particular mod. I tried the transmission mod but was not satisfied; it still locked up way too soon. Now I have full control of when it locks up.
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Old Oct 1, 2002 | 05:32 PM
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Default Re: Converter lock up (Red 86 4+3)

I believe you can use a switch to connect ALDL pins F and A to force TC lockup. A mini-LED in series with a 2.2kOhm 1/4 Watt resistor across these terminals will act as an indicator of TC lockup status.

Of course the TC will unlock when the 2-1 downshift occurs as there is no fluid flow to the lockup solenoid in 1st gear.

However, I think you'll find that the engine lugs too much at 25-30mph with the TC locked up while in higher gears.
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Old Oct 2, 2002 | 05:38 AM
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Default Re: Converter lock up (65Z01)

Actually I do want lock up. It may be I just need to get used to the converter, but right now im not real happy with the 3000 stall. Light throttle I dont even notice a difference, but when giving it half throttle and it stalls up so much is driving me crazy. It just doesnt seem to feel as torquey or as responsive.
I am going to try jumping out the pins A and F and see how it drives. If it doesnt lug to much is there any damage it can cause driving it like that? And thanks to every one for their help!!
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