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  #41  
Old 05-06-2017, 10:27 AM
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the_bluester the_bluester is offline
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I would have to drive mine again to re check but it feels like a gear not a torque converter lock. With 7 of the buggers the RPM change is not very great. As far as I know the TC locks up very early on in the piece.

Either way what I said stands, it would be far better with more hysteresis in it so that whiecever it is doing stayed done for a decent period.
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  #42  
Old 13-07-2017, 03:20 PM
Kakol junior Kakol junior is offline
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Hi guys here's a quick video in manual mode ,not the best but yer https://youtu.be/QvdGF8kznd8
Hey nedm1989 see that fella on your post point it towards the tccs( torque converter control solenoid) ? Iv actually considerd changing that out,if I can find one I will change it out and repost..just need to find one...
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  #43  
Old 16-07-2017, 04:46 AM
Kakol junior Kakol junior is offline
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Iv come to a conclusion that it's a softwareware glitch from the ecu to the torque converter,next is to find a way for a update,or tcm remap...but is only a guess��

Last edited by Kakol junior; 11-08-2017 at 06:27 AM.
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  #44  
Old 16-07-2017, 11:30 AM
nedm1989 nedm1989 is offline
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I keep hearing conflicting stories about people tuning the gearboxes in these things, I think I remember someone on the navara 550 facebook page saying something about finding a place but not sure where they got up to, I find it hard to believe they'll tune a 350&370z but wont touch the 550s box even thought its the same thing but with a transfer case stuck on the end.

I've been trying to find something that makes sense about it all as even though it seems ok and I found nothing alarming in my atf when i serviced it, I will say I did mine at 80000k and imagine that has been the first time its been done, but I'll be doing it again in 40000ks.
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  #45  
Old 11-08-2017, 06:29 AM
Kakol junior Kakol junior is offline
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It's strange because there are the odd Times it doesn't surge at all...
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  #46  
Old 13-08-2017, 12:38 AM
oldblue550 oldblue550 is offline
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I spoke toke to uprev about tuning my box. They are very well known for tuning the 370 box. They replied with this first.
"We would need the ecu/rom number to find out if your truck is supported. If you do not have an uprev cable to hook up to your vehicle you can go to one of our licensed pro tuners to find out or call the dealership with your vin number and ask what the latest ecu update number is."

And then the next day with this.
"We do not have support for the Navara im sorry to say."
My 550 is currently in the middle of installing bigger injecter nozzles, high flow turbo, piggy back ecus and obvi a fresh tune; and I'm really worried that the gearbox is gonna go since they are only rated to 600nm and already with my current work and tune done I was sitting at just over 700nm. Last time I spoke with wholesale transmission, they said they don't do a valve body for the box. :-/
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  #47  
Old 25-08-2017, 07:12 AM
Kakol junior Kakol junior is offline
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Be interested in knowing if a remap would fix the torque converter issue that sum of us have...
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Box tune.
  #48  
Old 26-08-2017, 10:19 PM
oldblue550 oldblue550 is offline
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Default Box tune.

That hard part is finding someone that can do it.
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