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Hey guys and girls

I have been looking into fitting a T56 6 speed manual gearbox or TR606 to my R33 GTR

I have carried out allot of research I have found out RWD conversions are possible and have been done but no one has done a AWD conversion that I have been able to find.

I think this could be a viable and cost effective option for people who are looking for a quiet street able gearbox which is capable of handling high HP.

Now the cost for a setup like this could range from $6000 to $8000 that is a estimate at this stage the first unit would more than likely be more expensive but with more interest these costs could fall

The T56 Magnum would probably be the gearbox of choice as it is the strongest syco box they do

Able to withstand a massive 700 lb-ft. of torque while providing unbelievably crisp shifts, no other manual transmission on the planet offers as much combined strength, versatility, and general ease-of-use as the T-56 Magnum.

Known in its original equipment form as the 'TR-6060', the Magnum is an aftermarket version of the same transmission found in many of today's most celebrated factory super cars – including the ZR1 Corvette and ACR Viper – giving you refinement where you want it and strength where it counts.

Other positives about these gearboxes are gear sets PPG have dog configurations and sequential setups for the more hardcore drivers. I personally wouldn’t see the point all you would do is fit a PPG setup to the factory 5 speed. The bell housing is also allot larger this may offer GTR owners more clutch options more surface area and the possibility to run a nicer street able clutch (sprung centre)

The biggest positive is retaining the 4WD and for me that the game changer.

This isn't set in stone as yet, I am looking for advice and wisdom there is a huge amount of knowledge on this forum and would love to hear your thoughts and comments

thanks for your time

Frosty

Edited by frostyboy
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I wouldn't even rate the T56 as a good gearbox, yeah it's strong but I think it shifts like a truck!

As the others have mentioned it would be a huge waste of time and money when there is already a very capable and smooth gearbox in the R34 Getrag box.....and as for clutches, you think there is a smoother easier clutch than the likes of the Nismo Coppermix Twin?

Edited by Sub Boy32
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Thanks for the input guy's

Would someone be able to give me some information on the getrag gearboxes?
What sort of power and torque are they rated to?
What type of synco setup do they have in them?
Are they single double or triple synco setups?
Are they brass, silicone or other material?

The issue with OS88, Albins or Hollinger is the high level of maintenance associated with them the OS88 is recommended to be pulled down at least once a year
Unsure about the others however I remember seeing similar times for the Holinger
I don’t know anyone who is daily driving a Holinger or OS88. I mean over 15,000km a year

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  On 06/06/2015 at 11:07 PM, Sub Boy32 said:

I wouldn't even rate the T56 as a good gearbox, yeah it's strong but I think it shifts like a truck!

As the others have mentioned it would be a huge waste of time and money when there is already a very capable and smooth gearbox in the R34 Getrag box.....and as for clutches, you think there is a smoother easier clutch than the likes of the Nismo Coppermix Twin?

http://www.rsgear.com/products/transmissions/tranzilla.aspx

Triple cone synco's are the best you can get for a synco box

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  • 5 years later...
  On 28/06/2020 at 8:08 AM, GTSBoy said:

Yeah. It was dumb.

Is that the sort of answer you're looking for, or some confirmation bias?

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Listen champ if you want to be a piece of shit find another forum don't bag out people trying something different.

 

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  On 30/06/2020 at 3:00 AM, GTSBoy said:

Alright then *champ*. Tell us. How did your idea play out?

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Mal Wood is developing a transfer case adapter to make it work.

All I'm asking GTSBoy is to not belittle other forum uses because you don't believe in there direction or don't like the thread. No one asked for you to read it.

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Using this you will have an SFI spec bellhousing solving one of the issues that I have no idea how some of the "street drag" manual gtrs get around. Obviously those that go auto have no issue. 

 https://www.jegs.com/i/Quick-Time-Bellhousing/698/RM-7011/10002/-1

 

 

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So i contacted malwood. They do indeed do this combo(I have pics). Looks like they sell complete box only and not an adapter by itself. 

I have asked for pricing. Could be a really interesting option compared to a used getrag if priced well.  

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