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Lock Up torque converter override switch

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Dr_Snapid

Joined: Mon Jul 26, 2010 11:57 am
Posts: 649
Location: Grafton
Vehicle: 2003 Jimny Auto

Posted: Mon Jul 23, 2012 11:26 am

Been reading lately about people making a manual switch they can press to lock up the torque converter in an auto tranny

Does anyone know anything about this and if so, what wire/s would be involved on my Jimny?

Fatzook

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Joined: Sat Oct 27, 2007 11:30 pm
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Location: The Hills
Vehicle: Vitara, NGV

Posted: Mon Jul 23, 2012 11:33 am

Yeah I had this on My GQ patrol. It engages the solenoid that locks out the converter.

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Fatzook

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Posted: Mon Jul 23, 2012 11:35 am

http://www.automatictransmission.com.au/release.asp?NewsId=42068

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Dr_Snapid

Joined: Mon Jul 26, 2010 11:57 am
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Location: Grafton
Vehicle: 2003 Jimny Auto

Posted: Mon Jul 23, 2012 12:09 pm

Yep thats the setup i was reading about. I am wondering if my cars can be modded also... DIY

atari4x4

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Joined: Mon Dec 11, 2006 10:30 pm
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Location: East Radelayed
Vehicle: SV420+SV620 Vitara's

Posted: Mon Jul 23, 2012 12:24 pm

anyone done it to a AW4 before? sounds like a worthy mod

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tanshi

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Joined: Tue Jan 09, 2007 10:30 pm
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Location: Brisbane

Posted: Mon Jul 23, 2012 12:26 pm

AW4 should be easy, i ve reasearch it before but dont have the links at work.

Chop

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Joined: Sat Aug 12, 2006 11:30 pm
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Location: Radelaide ofcourse!
Vehicle: Suzuki GV 03/ 2010 DDIS NGV

Posted: Mon Jul 23, 2012 8:40 pm

This would be a good addition, just got to remember to turn it off. :lol:

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want33s

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Joined: Fri Nov 16, 2007 10:30 pm
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Location: Sunshine Coast Qld

Posted: Tue Jul 24, 2012 9:56 am

Chop wrote:

This would be a good addition, just got to remember to turn it off. :lol:

/\ /\ Yes... or it will get VERY expensive very quickly.

christover1

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Joined: Tue Jul 15, 2008 11:30 pm
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Location: Melbourne
Vehicle: Pajero 91 NH 3.0 SWB

Posted: Tue Jul 24, 2012 10:06 am

With Transfer case gearing lowered,
I no longer feel the need for a converter lock up on down hills.

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fordem

Joined: Mon Apr 19, 2010 11:30 pm
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Location: Georgetown, Guyana
Vehicle: JB420, APK416, A6G415, A6N415

Posted: Tue Jul 24, 2012 12:35 pm

want33s wrote:

Chop wrote:

This would be a good addition, just got to remember to turn it off. :lol:

/\ /\ Yes... or it will get VERY expensive very quickly.

Why should it get expensive?

Running with the torque converter locked IS a normal operating mode - the TC on my AW4 spends more of its time locked than it does unlocked - as far as I can tell the biggest problem you'll face if you manually lock it and forget to unlock it will be stalling the engine when you come to a stop, pretty much the same as if you forget to depress the clutch with a manual transmission.

want33s

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Joined: Fri Nov 16, 2007 10:30 pm
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Location: Sunshine Coast Qld

Posted: Tue Jul 24, 2012 1:08 pm

Leave the converter locked and stall the car.
Then put it in Park, restart the car and put it in Drive without unlocking the converter and see what happens.

Jester

Joined: Fri May 08, 2009 11:30 pm
Posts: 726
Location: Adelaide
Vehicle: 1985 Suzuki MightyBoy

Posted: Tue Jul 24, 2012 1:19 pm

Yeah the clutch for torque convertor lock up aint big enough for too much load

Dr_Snapid

Joined: Mon Jul 26, 2010 11:57 am
Posts: 649
Location: Grafton
Vehicle: 2003 Jimny Auto

Posted: Tue Jul 24, 2012 8:32 pm

want33s wrote:

Leave the converter locked and stall the car.
Then put it in Park, restart the car and put it in Drive without unlocking the converter and see what happens.

I can see how that could hurt...

But anyway, i think i woud opt for a momentary switch, where you can hold it to lock the TC just the times when you want it.

That said, I dont know that my 1.3l petrol motor has that much engine braking anyway, perhaps a manual jimny driver can comment on that. Do they crawl down hills in low low?

Also I suspect that 1st gear is taller in an auto as well.

SierraDan

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Joined: Fri Feb 04, 2011 10:55 pm
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Location: Newcastle
Vehicle: G13BB Jimny

Posted: Tue Jul 24, 2012 8:36 pm

Jimny.. Crawl :lol:

Without reduction of some sort Jimnys have crap low range.

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Dr_Snapid

Joined: Mon Jul 26, 2010 11:57 am
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Location: Grafton
Vehicle: 2003 Jimny Auto

Posted: Tue Jul 24, 2012 9:01 pm

Thx dan

TZAR

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Posted: Tue Jul 24, 2012 9:42 pm

want33s wrote:

Leave the converter locked and stall the car.
Then put it in Park, restart the car and put it in Drive without unlocking the converter and see what happens.

Then set up a relay off the park/neutral switch that would disconnect the lock up. problem fixeded!!!

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Dr_Snapid

Joined: Mon Jul 26, 2010 11:57 am
Posts: 649
Location: Grafton
Vehicle: 2003 Jimny Auto

Posted: Tue Jul 24, 2012 11:50 pm

It would be interesting to try I reckon, if all it is is a switch hooked in to the solenoid, the cost is near zero... I reckon it would be useful for me.

I'd love if someone on here knows where the wire is. I have a multimeter though so I guess I can go chasing. But who has the time :roll:

JrZook

Joined: Tue Aug 08, 2006 11:30 pm
Posts: 5517
Location: Holland Park
Vehicle: Awesome!!

Posted: Wed Jul 25, 2012 9:47 am

TZAR wrote:

want33s wrote:

Leave the converter locked and stall the car.
Then put it in Park, restart the car and put it in Drive without unlocking the converter and see what happens.

Then set up a relay off the park/neutral switch that would disconnect the lock up. problem fixeded!!!

Then what happens when you put it back in drive again? Convertor locked again. Problem un-fixored

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fritter

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Joined: Sun Sep 19, 2010 9:30 am
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Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...

Posted: Wed Jul 25, 2012 10:29 am

Wouldn't a simple latching relay circuit with a momentry action switch solve this problem?

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TZAR

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Joined: Tue Aug 01, 2006 11:30 pm
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Posted: Wed Jul 25, 2012 10:14 pm

JrZook wrote:

TZAR wrote:

want33s wrote:

Leave the converter locked and stall the car.
Then put it in Park, restart the car and put it in Drive without unlocking the converter and see what happens.

Then set up a relay off the park/neutral switch that would disconnect the lock up. problem fixeded!!!

Then what happens when you put it back in drive again? Convertor locked again. Problem un-fixored

No the problem was fixoreded you moroeon. You make it so its push button so it has to be re engaged. Jezz what would you know about wiring. Sounds like you have a degree in cuzz-tec circuitry :thefinger:

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