CAT600

What's everyone's opinion on the last two manual's in terms of strength?
The TTC site lists the T56's weight in the 52-58kg range for the 610nm spec boxes but when you travel over to the TR-3650 section, the 520nm box weighs 60 kg.

Now, call me crazy, but I can't see how a gearbox that was designed in the late 80's/early 90's with 6 speeds can be 2-8kg lighter than a 5 speed designed in the late 90's. (This thread is not designed to be a MkI vs MkII basher, and to remove any suspicion of personal bias, I hearby state my ownership of a TR-3650 equipped vehicle)

Noboss

There must be a lot of lighter bits & bobs in there for it to be lighter???????

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Rodderz

I guess we will find out the strengths of them after people have their cars getting some big power via edit

I drove a new 6spd T-56 in an XR8 ute a few months ago and the shift quality was better than what the 3650 was stock....i got a short shift kit and its better than both but I would guess the T-56 would be better with a short shift, plus the ratio's are better matched

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CAT600

I have seen the size (width) of the gears inside a 3650. The salesman in the showroom had one sitting on the desk as a paperweight. It looked impressive, but one must ask why it was outside the box?

FPVGT

6 speed without a doubt if it is lighter and has an extra gear that is defanately a plus.I think the 5 speed is and was outdated for the new series of Falcons and FPV cars.

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shaynet

Ask Mal Woods - he would know the answer.

Maybe the 6 speed has stronger metals that are lighter? Or it might be in the weight of the casing.

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CAT600

I hear you about the advantages of a lighter 6 speed, but saying that it was outdated goes against facts and the idea behind the thread. What I am asking is this:
- The T56 is a six speed first used in the Viper in 92/93. It is very strong and reliable and uses a single rail shift linkage system.
- The TR3560 is a five speed first used in the 00/01 Cobra. It may/may not be strong (that's part of what i'm asking) and uses a multiple selector shaft arrangement for more precise shifting.

I cannot understand how a later technology gearbox, with less moving parts (less gears) can be significantly heavier without some upside to the whole equation.

So maybe a better way to have put this thread was this: How strong is this box?, Whats the most power anybody's put through it? and has anybody broken one? Cheers D:

jimt3te50

FTe had the option of going the t56 in the last of the t series cars and went against it- straight cut gears in the tr3650 should make it the STRONGER of the two (not necessarily better)- from all reports you can not kill the 3650, basically a toploader witha fifth gear- and a few comments through the press labelling it as a road cars' hollinger.

On a side note, I know there has been a lot of FPV bashing lately- "series 2 comes out and no more power etc etc- why won't FPV listen?" To be honest I think they did listen and that's why now we have a six speed- people always compare against HSV, let's hope FPV don't follow too many of the dark side's traits.........

Anyway, my THOUGHTS on the subject of which is the STRONGER of the 2 would be the 3650- similair dollars, and by rights, if the 3650 has the fewer gears/synchros etc there has to be something to make the value of the 3650 stand up- strength could be it........

Steffo

I think they should get rid of the crappy T56 they use now and use this one in all their cars...

http://www.gforcetransmissions.com/tran_gt-56.asp

At least that way they'll insure that the torque output of their cars won't break their gearbox......

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Steffo

From their site - the strongest TR3650, the TR-3650-2 TCET1858 is capable of handling 528Nm of torque (390ftlbs). http://www.ttcautomotive.com/English...ts/TR-3650.asp

From their site - the strongest T56, the TUET1806 is capable of handling 746Nm of torque (550ftlbs). http://www.ttcautomotive.com/English/products/T-56.asp

Nope, TR3650 is not anywhere close to being as strong as the T56 from the factory.

T56 is the second strongest manual they make for cars, only losing to the 5-speed TKO600... which can take 600ftlbs of torque (813Nm).

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