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torque rating for zf 6 speed auto 

 

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 Post subject: torque rating for zf 6 speed auto
Posted: Fri Aug 08, 2008 8:08 am 
Tyre Shredder
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unable to find any info on this ....anyone know? and is there a difference in the transmission between the 6cyl & 8cyl
cheers
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Posted: Fri Aug 08, 2008 10:21 am 
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They say 600nm. Do you want a copy of the manual for it?
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Posted: Fri Aug 08, 2008 11:39 am 
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Na ..cheers Pete ,just some thoughts for a project down the line...do you know if theyre the same trans 6-8 ?
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Posted: Fri Aug 08, 2008 1:00 pm 
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I don't think there is a difference in gear ratios and the input shaft. The input shaft on the 6 cylinder is thinner at the tip on the 5.0 if you don't have anything to compare them to before you go to look at the transmission stop and buy a pilot bearing for a 5.0 if it fits then it's good.

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Posted: Fri Aug 08, 2008 3:10 pm 
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XR9UTE wrote:
They say 600nm. Do you want a copy of the manual for it?
Yes please ;)

 

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Posted: Fri Aug 08, 2008 5:09 pm 
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Just the gearbox section macca? The whole manual is rather large.
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Posted: Fri Aug 08, 2008 5:40 pm 
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there must be a few tweaked F6,s gettin close to 600nm wonder how theyre handling it?
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Posted: Fri Aug 08, 2008 5:44 pm 
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petty wrote:
I don't think there is a difference in gear ratios and the input shaft. The input shaft on the 6 cylinder is thinner at the tip on the 5.0 if you don't have anything to compare them to before you go to look at the transmission stop and buy a pilot bearing for a 5.0 if it fits then it's good.

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are you meaning 5.4 mate ? as the 5.0 didnt come with the 6 speed ?
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Posted: Fri Aug 08, 2008 6:51 pm 
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fairy v8 wrote:
petty wrote:
I don't think there is a difference in gear ratios and the input shaft. The input shaft on the 6 cylinder is thinner at the tip on the 5.0 if you don't have anything to compare them to before you go to look at the transmission stop and buy a pilot bearing for a 5.0 if it fits then it's good.

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are you meaning 5.4 mate ? as the 5.0 didnt come with the 6 speed ?


I don't know if he's even referring to an auto gearbox? :shock:
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Posted: Fri Aug 08, 2008 6:56 pm 
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I'm led to believe this gearbox is withstanding the considerable torque of worked turbo sixes and even PD blown 5.4's. However I've heard that turbo 5.4's are the last straw which is pretty impressive. I'll probably throw the V10 in front of mine eventually....we'll see what happens.
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Posted: Fri Aug 08, 2008 7:03 pm 
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Oh yeah Fairy. They don't mention any mechanical differences in the manual only torque converter stall speed differences etc.
The other problem is that they use an Electromechanical valve body in other words; the Trans controller is also actually part of the valve body itself. It then talks to the PCM via one wire.
I am investigating the possibility of reflash for this controller.
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Posted: Fri Aug 08, 2008 7:46 pm 
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ok ...cheers Pete thats interesting , i presume then being the same box they must have a removeable bell housing so you could adapt from 6 -8 and vice versa ? .... then i spose you might also have to do something about the pcm as youve said ?
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Posted: Fri Aug 08, 2008 8:36 pm 
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fairy v8 wrote:
there must be a few tweaked F6,s gettin close to 600nm wonder how theyre handling it?


i think there are a few going round with a considerable amount more than 600Nm :P

 

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Posted: Fri Aug 08, 2008 9:00 pm 
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alfy wrote:
fairy v8 wrote:
there must be a few tweaked F6,s gettin close to 600nm wonder how theyre handling it?


i think there are a few going round with a considerable amount more than 600Nm :P


yeah, considering the standard car already has 550nm. I seem to remember there being two ZFs too, the version fitted to Fairmonts etc rated at 450nm and a stronger version at 600nm.

 

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Posted: Fri Aug 08, 2008 9:11 pm 
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fnp wrote:
alfy wrote:
fairy v8 wrote:
there must be a few tweaked F6,s gettin close to 600nm wonder how theyre handling it?


i think there are a few going round with a considerable amount more than 600Nm :P


yeah, considering the standard car already has 550nm. I seem to remember there being two ZFs too, the version fitted to Fairmonts etc rated at 450nm and a stronger version at 600nm.


would have to be the six , as the 220 v8 put out 500 nm?
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