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

Converted to carb! TC lockup switch or not?

Thread Tools
 
Search this Thread
 
Old Oct 1, 2004 | 08:03 AM
  #1  
bluegrassz's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Converted to carb! TC lockup switch or not?

OK guys, I converted from TPI to carb, and still have the 700r4 in the car.

The computer is gone, so should I buy a TC lockup switch, or will wiring in a toggle switch work?

What will happen to my trans if I just leave it this way?

I will be having the trans built later on, and thought about using a non lockup converter. So I will have to have the trans converted also.

This is not a daily driver, but it does see some street time.

What do you guys suggest?
thanks
Reply
Old Oct 1, 2004 | 08:16 AM
  #2  
BIGJON's Avatar
Member
 
Joined: Aug 2004
Posts: 139
Likes: 0
Car: 1989 Formula 350 Firebird
Engine: 350
Transmission: 700 R4
Just make a switch.....since its not a daily driver you are better just using the Lock-up when you need it.......save you lots of money and YOU have the control over it.....
Reply
Old Oct 1, 2004 | 08:58 AM
  #3  
bluegrassz's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Originally posted by BIGJON
Just make a switch.....since its not a daily driver you are better just using the Lock-up when you need it.......save you lots of money and YOU have the control over it.....
yeah, but will a typical toggle switch still work with the computer out of the car?

I know it will work if you are still using the FI and computer, but will it still work the same without the computer?
Reply
Old Oct 1, 2004 | 09:10 AM
  #4  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
As long as you don't butcher the wiring.
Reply
Old Oct 1, 2004 | 09:49 AM
  #5  
BIGJON's Avatar
Member
 
Joined: Aug 2004
Posts: 139
Likes: 0
Car: 1989 Formula 350 Firebird
Engine: 350
Transmission: 700 R4
Yes make sure that the switch is providing a (GROUND) or a negative signal.....thats what completes the lock-up...
Reply
Old Oct 1, 2004 | 10:24 AM
  #6  
bluegrassz's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Originally posted by Apeiron
As long as you don't butcher the wiring.
I did remove some of the wiring. The wires for the injectors and ect.

I did not touch any wires going to the trans.

What would be the down side of not using a switch? Besides using more gas at highway speeds?
Reply
Old Oct 1, 2004 | 10:32 AM
  #7  
BIGJON's Avatar
Member
 
Joined: Aug 2004
Posts: 139
Likes: 0
Car: 1989 Formula 350 Firebird
Engine: 350
Transmission: 700 R4
Well your torque converter when not locked up will produce friction and therefor create more heat.....this is not a major concern but you gain a few hundred rpm on the highway and you will have less friction (heat) built up in the transmission that way as well.....I have a Camaro that I don't use it on and my Firebird I do for highway driving and thats it.....
Reply
Old Oct 1, 2004 | 10:46 AM
  #8  
bluegrassz's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Originally posted by BIGJON
Well your torque converter when not locked up will produce friction and therefor create more heat.....this is not a major concern but you gain a few hundred rpm on the highway and you will have less friction (heat) built up in the transmission that way as well.....I have a Camaro that I don't use it on and my Firebird I do for highway driving and thats it.....
so if I install a external trans cooler, then that would help with the heat/friction. Im not worried about the extra few hundered RPM. I run 3.73 gears anyway.

I do race it from time to time at the track. I also do drive it around town on occasions. No freeway driving.

Thanks guys, I may wire up a toggle switch just to see if there is much of a difference.
Reply
Old Oct 1, 2004 | 10:49 AM
  #9  
BIGJON's Avatar
Member
 
Joined: Aug 2004
Posts: 139
Likes: 0
Car: 1989 Formula 350 Firebird
Engine: 350
Transmission: 700 R4
Right it isn't a critical component but it is more of a preferance.....
Reply
Old Oct 4, 2004 | 07:25 AM
  #10  
bluegrassz's Avatar
Thread Starter
Supreme Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (3)
 
Joined: Jan 2002
Posts: 3,449
Likes: 7
From: LONDON, KY
Car: Camaro
Engine: Carbed L98
Transmission: TH350
Axle/Gears: 3.73
Originally posted by BIGJON
Right it isn't a critical component but it is more of a preferance.....
thanks.
Reply
Old Oct 4, 2004 | 10:02 AM
  #11  
Tobias05's Avatar
Supreme Member
20 Year Member
 
Joined: Jul 2003
Posts: 2,779
Likes: 2
From: any clime or place...
Car: 1987 Camaro SC, 1999 Z28
Engine: GMPP 350HO, LS1
Transmission: Built 700r4/EDGE 3200, T56
Axle/Gears: 3.42 Eaton 7.625, 3.42 Zexel Torsen
i just got rid of my computer when i dropped in my 350HO.

I'm running a 700R4, B&M shift kit, and a supercooler.

w/o the lockup it added 200 rpm at cruise, comes out to about 1700RPM@60MPH w/ the 2.73's....

I'm more worried about my tranny leaking, than the lockup at this point...

I did save the tranny wires though, in case i ever get around to it.

Brandon
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
Azrael91966669
DIY PROM
25
Jun 20, 2017 04:04 AM
theshackle
Tech / General Engine
4
Mar 5, 2017 06:37 PM
Dialed_In
Firebirds for Sale
2
Aug 20, 2015 01:45 PM
86IROC112
Engine/Drivetrain/Suspension Parts for Sale
4
Aug 17, 2015 02:00 PM




All times are GMT -5. The time now is 04:27 PM.