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If Tractive got a few more serious enquiries I think they'd do an adaptor to run the transfer box off their gearbox. Mine, and a friends, have been totally reliable, and the support and info available from Tractive have been extraordinary. They are definitely NOT for road use though, unless you are a masochist. Having said that I drive my car to and fro Oulton occasionally, 25 miles up the road. I did a track day yesterday, and the return journey was tediously noisy without a helmet on.

http://www.gtr.co.uk/forum/114647-new-gearbox-almost-certainly-unique-skyline.html
 

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Hope you dont mind me jumping on this thread. A little bit of history for you.
The original Quaife H-gate 6 speed was developed back in 1991 for Trust (aka GReddy) Japan. In those days the primary objective was to get an extra gear, with two overdrives (5th and 6th) so the top speed trialers could make 300kmh. It was never really designed for lots of extra strength. When you fit a new cluster of gears into any stock gear casing, you cant alter the diameter of the gears because the shaft positions cant change. So all you can do is improve the tooth design and possibly the width of the gears. All that was done as that product evolved during the '90s. Thing is though, by then most serious cars were making 750hp or more so the gears would eventually fail - due to their stock diameter. It was obvious something more serious was needed. The sequential is a completely different thing altogether and is completely different internally to the older H gate kit. Its a direct derivative of Quaifes universal 6-speed sequential, an entirely different product altogether. It was re-designed in fact to fit a new car specific 32/33 GTR casing, I know cos I lent them my car to model it on. The sequential has enormous gears by comparison to the H. I think there are about 65 sequential boxes around the world now and remarkably few spares have been supplied during the 11 years they have been out there. Spares are generally available at the moment, whereas for the older H-pattern, none have been made since 2001, so spares if not on the shelf have to be made to order, meaning much longer lead times. I think the most important thing to remember about the sequential, is its a racing transmission. It uses straight cut gears and is as noisy as you like. Not the preferred option for a daily driver really, but lets face it, there arent too many options available for the GTR. What I really wanted to do here was just answer the heresay and explain the product. The same basic principle goes for anything on the market - if the gear diameter is the same as standard, the strength is ultimately limited by that factor alone, so watch yourself spending fortunes on anything that fits into the standard casing.
The Getrag really intrigues me, so little info out there,but if you want to fit one of those in a 32/33, will need a 34 transfer and 34 gear ratios in the front and back axles, because all the ratios are completely different. As the 34 had a dual mass flywheel (as do Supras,M5's and 911 turbos), when you switch to a twin or triple with a solid flywheel, it seems to put alot of pressure on the constant meshing gears, or input driven pair as they are known. Whether these ultimately fail or just get noisier and noisier I really dont know. Getrags seem to manage 700hp quite successfully in the 34, Supra and others, so I assume it has bigger gears than the 32/33- Anyone care to comment on that ? The Quaife sequential is noisy in all gears however, as all of them are straight cut. As far as using it goes, you will either love it or hate it. It needs you to shift definitely and aggressively, mainly due to a mixture of the large gear diameter and the sequential mechanism being mounted on the side of the box. Treat it like a motorcycle gearbox, pushing it hard into gear, and you will get on with it just fine. Press it delicately and it probably wont engage the next gear up or down. What did Richard Bell say out of interest ? He hated his initially whereas Brian loved it. I sat next to Rich at that drift place in Wales and made him have a go with it properly, by about the 3rd lap he loved it. So much so that after two more sessions, he broke his lovely new engine !
Anyway, hope it was ok to post, just thought a bit of background might help
cheers, Tim
r34 getrag box been running 900bhp for 3 odd years still going strong , i have used it very hard at times got os tripple clutch with r32 clutch cylinder as i needed some clutch control for every day street use , and so far no complaints ,
i think breaking a box is more of a driver error then box itself,
getrag seems to do the job just fine or am i the lucky 1 :) i think its the butter that does the trick for my box lol
 

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So less 30% that is still over $11k AUD... sigh
Going by the price HERE it works out at £6250 which, by using xe.com comes to AUD$9810. Dont know whether the Gearboxman price included UK VAT or not.

I definately have one on my wish list..

TT
 

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I am a bit confused after speaking to a sales guy a Quaife... I got told the differentials and gearbox was not available through Quaife but from Special Vehicle Services.

In any case that price is about right. If get rid of the stock 5 speed and the Getrag I might get half way there, lol.
 

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As far as I know Quaife have several products tied in to other dealerships, and the GTR sequential `boxes have always been handled by the ever helpful Tim at SVS here in the UK. Some Volvo stuff is sold through Scandinavian agents only, for example.
 

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I have two of these Quaife boxes and they are strong for power but easy to break if you dont know how to handle them.

Silverback took a brand new box on track and smashed it within 20 mins,
I had mine in for ages with no problems, then in one session on track with a transmission windup problem the dogs on 4th were trashed.
 

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Hi Chris, think you may have me mixed up with Mark Biggers, same area and he tests at Malory.

However I am happy to tell you about my motor :)

I run an OS Giken 1-5 with a few extra custom mods done on it, I will be switching back to the quaife sequential for the last time attack round and hope to have my flat shifter fitted for then.
I use GTS4 diff gearing so the car will top out on the back straight of Snett without the extra legs of the seq box.

here is a vid of her winning Pro class at Time Attack Round 4 this year :)
Time Attack Brands Hatch Pro Class winning lap - YouTube
Cheers

Marcus
 

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I am mixing you up Marcus, my apologies. I am a bit frazzled this morning ;) Thanks for the link, I'll have a look at that! Are the GTS-4 diffs as strong, crown wheel and pinion wise, as the GTR ones? Good luck in the final round, be fast and safe!
 

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NP chris, we have had no issues with the GTS 4 gears, they are bolted to OS Giken superlock diffs and seem to handle the power with ease.
 

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I have two of these Quaife boxes and they are strong for power but easy to break if you dont know how to handle them.

Silverback took a brand new box on track and smashed it within 20 mins,
I had mine in for ages with no problems, then in one session on track with a transmission windup problem the dogs on 4th were trashed.
So how do you advocate using them without breaking them? Do you perform regular maintenance on them to ensure dog rings are ok?

Smashing it in 20mins it a bit scary!
 

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I would suggest learning about them at a slow speed on the road , be aware for anyone considering them though god damn are they noisey !

yeh we service them a fair amount usually I will do it by feel , but I wont run a full season on any gearbox without a strip and check over.

Cheers

Marcus

EDIT Smashing a box in 20mins is scary but then Silverback was very well known for gearbox destruction at the time, I would like to note he is alot better nowadays :)
 

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I too am looking at the Quaife 6spd sequential for further down the line.....I reckon one of these, coupled to a shiftec paddle-shift system would be unbeatable. Couple that with a decent ECU such as Syvecs and you could have a true 2-pedal monster of a GTR.
As an aside I remember visiting the sadev stand at this years Autosport show in Brum and being VERY impressed by their raid-spec 4WD tranny....whether you could fit one to a GTR and keep the hassle-factor low would be debatable???? Still a bloody nice looking bit of kit and VERY compact!! I seem to remember though that the max torque capability seemed pretty low (or maybe I'm getting confused)

TT
Second time I am digging up an old thread :)

Did you ever re-enquire at Tractive regarding fitting the transfer case for the GTR on the back of one of their RWD boxes?
 

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The price still makes the Quaife sequential attractive; but the worst thing would be to be left in the position others are with the Quaife/Greddy H-pattern box (i.e. no spares once you need maintenance or break something).
 

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Discussion Starter #60
Second time I am digging up an old thread :)

Did you ever re-enquire at Tractive regarding fitting the transfer case for the GTR on the back of one of their RWD boxes?
I did..... they were too busy to bother.
 
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