Alright I looked at the tech article on a TC lockup switch, and I've looked at B&M, Hurst and Painless wiring for their versions. All I want is to keep the TC in overdrive when I'm crusing around 45-50 and up mph. Any suggestions.

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'87 Formula 350, Nothing Special Yet

 

You would always want the TC locked-up all the time when in overdrive. Otherwise, you will overheat the transmission. If you want the TC unlocked in the first three gears up to 45 or so you will probably need a custom burnt prom for that. I have a B&M kit on mine that can be run just as the factory setting, or I can switch the lock-up off in the first three gears only.

 

Maybe I don't understand lockup. When I'm at about 45 mph I can feel the converter locking and unlocking. I want it locked in 4th gear, right??????

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'87 Formula 350, Nothing Special Yet

 

Fourth gear should be locked all the time. I have mine shut off for the first three gears all the time. Have driven like this for years with no problems. With the switch, I can always go back to factory. But when in overdrive, switch position is immaterial as the converter is always locked up. You may also be feeling this "bumping" as the EGR comeing in and out.

[This message has been edited by zz4mula (edited September 21, 2000).]

 

Not necessarily. It should shift into overdrive (4th) first, then lock the TC somewhere between 40-45. When needing additional power, such as starting up a hill, the TC should unlock first, and if that's not enough, it should shift down to 3rd. This from several vehicles I've had with locking TC's.

Either the contention that the TC must lock or the tranny will burn up is over-stated, or AMSOIL synthetic ATF is worth its weight in gold. I've put over 10,000 miles and almost a hundred runs on my Camaro tranny that had 123k miles when I got it, with a TCC that never locks, and it hasn't even hick-up'd once.

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82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 3.08 open, cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, World 305 heads, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.

 

Can someone give me the best way to wire up a lockup switch

 

Goto this link https://www.thirdgen.org/messageforu...ML/000043.html

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-Justin-
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