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Torque Converter - 3.2DiD
Posted: Thu Apr 19, 2012 2:51 pm
by Gemaskerde Tuinvurk
Just a few questions sprang to mind after reading all the bits on the forums about these magical devices...
- If it locks up at a speed depending on your wheel size, lockup is then based on axle rotation speed?
- Is the lockup driven by a mechanism, or is it electronic - i.e. from the ECU?
- Is there a point on each gear that lockup occurs, or does it only happen in 5th?
- Based on the above - if you drive slower than the typical lockup speed of around 120km/h, does this mean that the torque converter never lock's up?
- Is it bad if the torque converter never locks up? (in terms of wear and tear, fuel consumption, etc.)? (just thinking about the guys towing heavy stuff and driving around at 100km/h...)
Re: Torque Converter - 3.2DiD
Posted: Thu Apr 19, 2012 3:24 pm
by 4ePikanini
the lock up is based on the ecu. If the load is high (ie towing, uphill, flooring the accelerator pedal) it will unlock the lock up clutch.
I'm currently investigating the electricals thereof so I can wire in an override switch so I can manually control the lock up clutch. It will aid fuel economy on the open road and help with engine braking on downhills.
Something like this - I don't want to pay their high prices for a bit of wiring, a switch and a relay.
http://www.ebay.com.au/itm/Torque-Conve ... 670wt_1140
Re: Torque Converter - 3.2DiD
Posted: Thu Apr 19, 2012 5:46 pm
by Gemaskerde Tuinvurk
Cant you just tune the ECU - while you are getting it chipped for another reason, get this done as well?
E.g. if you get larger tyres? Adjust the ECU to compensate?
Re: Torque Converter - 3.2DiD
Posted: Thu Apr 19, 2012 7:22 pm
by 4ePikanini
I think it's easier and more controllable having a manual override than trying to reprogram the algorhythm of the auto ecu.
Im getting a user manual mailed to me tomorrow of the one sold overseas. Hopefully there's enough detail for me to deduce what the kit consists of. I have already studied the wiring and hydraulic diagrams and I'm convinced it's just a matter of intercepting the DCC solenoid signal. So either the switch triggers a relay sending the signal to the solenoid or the ecu sends a signal to the relay that triggers the solenoid.
I just have to figure out if the ecu picks up the resistance change, as their kit might have a resistor in to "fool" this test.
I'll post my findings in a separate thread should I be comfortable with my findings.
Sent via iPad & Forum Runner
Re: Torque Converter - 3.2DiD
Posted: Thu Apr 19, 2012 10:25 pm
by Biggish
Ah! this thread reminds me...
I was looking into a kit that is marketed and sold in Australia to do just this. AUS $375 IIRC - and I agree it's a steep price to pay for some wiring.
I will keep looking into this as well and will follow this and other similar threads with great interest!
Cheers
Bruce