Transmissions and Drivetrain Need help with your trans? Problems with your axle?

700R4 Lock up switch

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Old May 4, 2008 | 07:55 PM
  #1  
89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
700R4 Lock up switch

https://www.thirdgen.org/torqueswitch


whats the advantage and disadvantage of this, i got a 2200 stall converter and my trans was custom built if it makes any diff.

i did to the temp hook up around the block to see what it was like, and it seemed pretty cool, but dont see how it can help my ET

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Old May 4, 2008 | 08:31 PM
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Re: 700R4 Lock up switch

It works by locking up the converter. Under normal acceleration the input shaft of the transmission will be spinning around 500-700rpm( could be higher if you have a stall converter) less then what the flywheel is spinning. This mod gets rid of that lose of rpm. Ei more power will get to the wheels.
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Old May 4, 2008 | 10:33 PM
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89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

well you think its worth it, doing it like the link shows, im think the kits on jegs are for no CC cars right??
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Old May 5, 2008 | 04:59 PM
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89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

Ok, i played around with it enough to know i like having it, so im going to put a switch in, when should i lock it up, all the time, at the strip, in traffic, highway or when playing around???????
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Old May 6, 2008 | 09:22 PM
  #5  
89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

bump
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Old May 7, 2008 | 08:44 PM
  #6  
89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

with the unanswered ???
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Old May 7, 2008 | 09:36 PM
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From: kissimmee fl
Car: 88 iroc-z z-28
Engine: 383
Transmission: th400
Axle/Gears: 3.42
Re: 700R4 Lock up switch

They got one on jegs?

I need one for a carbed car. How i go about doing that?
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Old May 7, 2008 | 09:42 PM
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89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

its in the catalog, under trans

or try
http://www.jegs.com/webapp/wcs/store...10733_-1_10529
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Old May 8, 2008 | 09:18 PM
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

GRRRRRR when should i lock it up, all the time, at the strip, in traffic, highway or when playing around???????
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Old May 9, 2008 | 08:01 PM
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ZZ28ZZ's Avatar
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From: Austin
Car: 82 Z-28
Engine: 383 TPI
Transmission: 700R4
Re: 700R4 Lock up switch

The torque converter provides torque multification. Not so sure locking it for perf reasons would really help. Maybe as your winding out 2nd or 3rd at the strip, engaging the clutch might help, a little, maybe.
The clutch is not designed to be engaged under high power situations. I suspect it wouldn't last long being subjected to such treatment.
You don't want the tranny changing gears with tc locked-up. That would be hard on the band and clutches.
If you come to a stop with tc locked, the eng will die (unless you shift to neutral).

IMHO, the only time it really provides a real advantage is when cruising down the road at around 45+ mph. In that condition it will save you some gas. Under cruise conditions, the computer should be engaging the TC clutch anyway.
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Old May 9, 2008 | 09:30 PM
  #11  
89RS_82Z's Avatar
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From: Fairhope, AL
Car: 89RS(other cars & pics in vBgarage)
Engine: LO3, 305 TBI Mildly Modified
Transmission: BakerBuilt 700R4 w/B&M Megashifter
Axle/Gears: 3.23 Auburn Pro Series LSD
Re: 700R4 Lock up switch

ok, thats kinda what i was thinking
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