Quaife Engineering launches new six speed 750bhp rated gearbox
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Joined: Oct 2005
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From: Spring, TX
Quaife Engineering launches new six speed 750bhp rated gearbox - Quaife Engineering

Quaife Engineering launches new six speed heavy duty rear wheel drive universal sequential gearbox rated to 750bhp
Specialist British automotive performance transmission manufacturer RT Quaife Engineering Ltd today announces a significant addition to its product range, with the launch of a new heavy duty six speed sequential gearbox designed for endurance racing applications.
In 2008 Quaife’s technicians identified a market opportunity for an upscaled version of the firm’s successful QBE60G inline six speed sequential gearbox, which would be designed to suit higher torque and power output motorsport requirements.
The result of this careful design work is a competitively priced new unit – designated QBE69G – which is rated to power outputs of over 750bhp and features an integral oil pump to ensure adequate lubrication during long distance racing events.
Incorporating the lessons learnt on the popular 60G unit, the new 69G utilises 90mm shaft centres and larger gears to maximise strength, with a well proven modular six speed gear cluster layout.
Quaife’s new QBE69G gearbox offers three choices of gear ratios:
1st 2nd 3rd 4th 5th 6th
2.435 1.858 1.494 1.268 1.116 1.000
2.759 2.050 1.494 1.268 1.116 0.870
2.653 1.745 1.306 1.000 0.850 0.762
Use of the very latest dog engagement tooth profiles in the 69G has resulted in a six speed sequential unit which allows ultra rapid gear changes and not only offers users a choice of gear lever locations, but also the option to upgrade to a state of the art closed loop, pneumatically operated semi automatic paddle shift system.
Quaife’s popular digital gear position indicator is also directly compatible with the new 69G and is available as an optional extra ex-stock.
Initially the 69G gearbox will be offered with a bespoke Dodge Viper pattern bellhousing only, with ‘hybrid’ bellhousings being modified to other applications by Quaife to order. Various input shaft options are also available from Quaife on request to suit customer requirements.
Forward orders are now being taken for the Quaife QBE69G unit, which is competitively priced at £6595.00 excluding VAT.
I've been watching this tranny for sometime now and thought I'd share with the Z34 owners what I received today from Quaife;
Originally Posted by Quaife Engineering

Quaife Engineering launches new six speed heavy duty rear wheel drive universal sequential gearbox rated to 750bhp
Specialist British automotive performance transmission manufacturer RT Quaife Engineering Ltd today announces a significant addition to its product range, with the launch of a new heavy duty six speed sequential gearbox designed for endurance racing applications.
In 2008 Quaife’s technicians identified a market opportunity for an upscaled version of the firm’s successful QBE60G inline six speed sequential gearbox, which would be designed to suit higher torque and power output motorsport requirements.
The result of this careful design work is a competitively priced new unit – designated QBE69G – which is rated to power outputs of over 750bhp and features an integral oil pump to ensure adequate lubrication during long distance racing events.
Incorporating the lessons learnt on the popular 60G unit, the new 69G utilises 90mm shaft centres and larger gears to maximise strength, with a well proven modular six speed gear cluster layout.
Quaife’s new QBE69G gearbox offers three choices of gear ratios:
1st 2nd 3rd 4th 5th 6th
2.435 1.858 1.494 1.268 1.116 1.000
2.759 2.050 1.494 1.268 1.116 0.870
2.653 1.745 1.306 1.000 0.850 0.762
Use of the very latest dog engagement tooth profiles in the 69G has resulted in a six speed sequential unit which allows ultra rapid gear changes and not only offers users a choice of gear lever locations, but also the option to upgrade to a state of the art closed loop, pneumatically operated semi automatic paddle shift system.
Quaife’s popular digital gear position indicator is also directly compatible with the new 69G and is available as an optional extra ex-stock.
Initially the 69G gearbox will be offered with a bespoke Dodge Viper pattern bellhousing only, with ‘hybrid’ bellhousings being modified to other applications by Quaife to order. Various input shaft options are also available from Quaife on request to suit customer requirements.
Forward orders are now being taken for the Quaife QBE69G unit, which is competitively priced at £6595.00 excluding VAT.
I've been watching this tranny for sometime now and thought I'd share with the Z34 owners what I received today from Quaife;
Originally Posted by Quaife Engineering
Quaife are currently putting together a package to suit both the 350Z & 370Z with higher BHP. Please refer to the 60G's Big Brother, QBE69G which we have rated upto 750BHP. This package should be available within two months.
The QBE60G that is capable of handling up to a maximum of 400 lb/ft and 450 bhp, is for ~$7500. I can't imagine how much this one would cost!!
Its great news for track guys none the less.
Its great news for track guys none the less.
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
I been reading up on Sequential gearboxes myself, there are 3 availible to VQ/350Z, some needing more modifications to fit than others, Hollinger has one(super expensive and not very streetable, OS Gilken OS88 (rated to 1000hp) some reviews say it's very streetable others not so much, and the Quaife QBE60G. Price ranges from 20,000 to 10500, and then there's the rebuild interval which is stated to be around 5000k from most manufactures website. I've talked to Sam @ GTM who has a very positive outlook on the streetability of the Gilken gearbox to someone Z-1 autosport who stated it that the Qauife is a full track car only option. Anybody with 1st hand knowledge care to chime in?
The OS Giken transmission for a Z33 is not released yet, so there are no reviews to speak of, nor has final pricing been set (FWIW). It is still undergoing testing, and with any luck should be out by the end of the year. We'll post the full details once available
The Quaife for the 350Z that is out now is a full sequential box, which by it's nature, is designed around a track car. Could it be used on a street car? Sure...anything can be used if you want, but that is not the customer nor the environment it was designed around.
The Quaife for the 350Z that is out now is a full sequential box, which by it's nature, is designed around a track car. Could it be used on a street car? Sure...anything can be used if you want, but that is not the customer nor the environment it was designed around.
According to Sam @ GTM and their website there is a Gilken gearbox that you can order today. Is it the same one that your referring to I don't know. As far as reviews the Gilken and the Quaife have been used in other platforms (the OS 88 was orginally designed to replace the gearboxes in older GTR's. I'm not trying to argue with you, there seems to be a lot of contradicting information on the net and I have no personel knowledge of any of the three gearboxes, just what I have read and 2nd hand knowledge from other people. I am interested on your thoughts on why it's not streetable other than it's fairly expensive intial purchase?
Last edited by BrazenZ; Jul 26, 2010 at 12:18 PM.
There is no unit OS can sell you today, nor GTM for that matter. Feel free to ask OS, they will tell you exactly the same. There has been a part # identified for it for a long time, but as of today, no such unit can be ordered, and final pricing is not even yet established (though there is an MSRP in our latest price sheet, it's still subject to change by the time the piece is actually available for ordering). This is why I have not bothered to add it to our site, because it does not exist for all intents and purposes (yet).
The OS88 is an internal OS code for the general family of units for an R32-R34 GTR. An OS88 is a full sequential box as well that comes in a full casing from OS, and is designed for motorsport use. I should also mention and OS88 is a highly customizable unit, so it is rare that even 2 are identically the same. There are alot of options available to the buyer when it's being built (and the price reflects it though it's an amazing piece!). This is NOT at all what the OS unit will be for the 350Z, and there are zero plans for an OS88 unit for the 350Z. The 350Z unit is a 1-6 fully synchro gearset that will work inside a stock casing (it uses the CD009 synchros etc). It is intended exactly for your typical FI or NA customer - someone who needs a gearset with much better matched ratios vs stock, without the need to modify anything to make it work (uses the stock casing, so no alterations needed, reuse your existing clutch, no changes to bellhousing, etc). For the guy/girl who needs daily civility and driveability, but the strength for it to take the abuse present at those power/torque levels for street and track use. All setup to use the latest revision baulk rings/synchros from the CD009 series, so it gives you the best of everything in a fair affordable package (the quoted MSRP as of now is just north of $4k). Development units exist in Japan and there is one in the US as well being tested through various Time Attack events, and I believe they will be running some SCCA stuff soon as well.
I've been talking to OS about the 350Z unit since before a test unit was even developed, and I am one of the reasons that a unit was developed in the first place. I am eager to learn about it and touch it too because I likely will run one of the early production units in my car. There are still revisions being made at the factory now to one of the gears (ratio wise), and if I had to hazard a guess, I think you'll see the announcement at SEMA with production pieces being ready in Q1 2011. The other details I do have unfortunately I am not permitted to share just yet, but as soon as I am, I will.
Anything else you happen to hear from anyone is not based in reality
As for the Quaife unit, the one currently out is pretty widely used in Europe by various GT type teams. It is not a 100% drop in, and def requires some work to make it 100%, though it is designed for the Z/G. The customer who it's intended for would/should have access to all the tools/knowledge needed to install it...it's not for a newbie. The newer box coming out will be able to cope with much higher hp levels, though I'm not sure if similar adjustments are needed to the car like the previous version required. As I find out more details, we'll get it loaded to our site with all the known info we find out first hand. Again, the Quaife units are NOT intended for street cars. They are dog engagement sequential boxes designed for race cars. Not what you want in your car to run errands or go for a cruise, but for the car that requires it, it's an amazing setup
The OS88 is an internal OS code for the general family of units for an R32-R34 GTR. An OS88 is a full sequential box as well that comes in a full casing from OS, and is designed for motorsport use. I should also mention and OS88 is a highly customizable unit, so it is rare that even 2 are identically the same. There are alot of options available to the buyer when it's being built (and the price reflects it though it's an amazing piece!). This is NOT at all what the OS unit will be for the 350Z, and there are zero plans for an OS88 unit for the 350Z. The 350Z unit is a 1-6 fully synchro gearset that will work inside a stock casing (it uses the CD009 synchros etc). It is intended exactly for your typical FI or NA customer - someone who needs a gearset with much better matched ratios vs stock, without the need to modify anything to make it work (uses the stock casing, so no alterations needed, reuse your existing clutch, no changes to bellhousing, etc). For the guy/girl who needs daily civility and driveability, but the strength for it to take the abuse present at those power/torque levels for street and track use. All setup to use the latest revision baulk rings/synchros from the CD009 series, so it gives you the best of everything in a fair affordable package (the quoted MSRP as of now is just north of $4k). Development units exist in Japan and there is one in the US as well being tested through various Time Attack events, and I believe they will be running some SCCA stuff soon as well.
I've been talking to OS about the 350Z unit since before a test unit was even developed, and I am one of the reasons that a unit was developed in the first place. I am eager to learn about it and touch it too because I likely will run one of the early production units in my car. There are still revisions being made at the factory now to one of the gears (ratio wise), and if I had to hazard a guess, I think you'll see the announcement at SEMA with production pieces being ready in Q1 2011. The other details I do have unfortunately I am not permitted to share just yet, but as soon as I am, I will.
Anything else you happen to hear from anyone is not based in reality

As for the Quaife unit, the one currently out is pretty widely used in Europe by various GT type teams. It is not a 100% drop in, and def requires some work to make it 100%, though it is designed for the Z/G. The customer who it's intended for would/should have access to all the tools/knowledge needed to install it...it's not for a newbie. The newer box coming out will be able to cope with much higher hp levels, though I'm not sure if similar adjustments are needed to the car like the previous version required. As I find out more details, we'll get it loaded to our site with all the known info we find out first hand. Again, the Quaife units are NOT intended for street cars. They are dog engagement sequential boxes designed for race cars. Not what you want in your car to run errands or go for a cruise, but for the car that requires it, it's an amazing setup
Last edited by Z1 Performance; Jul 26, 2010 at 03:56 PM.
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Thread Starter
Joined: Oct 2005
Posts: 12,390
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From: Spring, TX
Via Quaife's Facebook; http://www.facebook.com/pages/Seveno...21070041256545
Quaife begins deliveries of the New Heavy Duty QBE69G six speed sequential in-line Gearbox.
Quaife Engineering is delighted to confirm that it has delivered the first batch of its new heavy duty in-line six speed sequential gearbox, which is rated to over 750 bhp.
Designed to suit the high torque and power handling requirements of the endurance racing market, the new QBE69G incorporates the following key technical features:-
90mm shaft centres and large gears to maximise strength
Modular six speed gear cluster layout
An integral oil pump for optimised lubrication
A sleek, modern casing design
Semi-automatic paddleshift compatibility
Many choices of gear ratios
Overall weight approximately 45 kilograms
Choice of input shafts available
Use of the very latest dog engagement tooth profiles in the 69G has resulted in a six speed sequential unit which allows ultra rapid gear changes and not only offers users a choice of gear lever locations, but also the option to upgrade to a state of the art closed loop, pneumatically operated semi automatic paddle shift system.
The QBE69G gearbox is supplied with a choice of straight cut (spur) or helical gear ratio sets:
Gears: 1st 2nd 3rd 4th 5th 6th
Spur (1:1) 2.435 1.858 1.494 1.268 1.116 1.000
Spur (1:1) 2.759 2.050 1.565
Spur (o/d) 2.435 1.858 1.494 1.217 1.000 0.870
Spur (o/d) 2.759 2.050 1.565
Spur (o/d) 2.063 1.687 1.357 1.151 1.000 0.901
Spur (o/d) 2.211 0.868
Spur (o/d) 0.790
Spur (2o/d) 2.653 1.745 1.306 1.000 0.850 0.762
Helical 2.719 1.994 1.524 1.208 1.000 0.858
Bellhousing options including Dodge Viper and Sierra Cosworth YBT pattern are already available and, in addition, use of an specially designed adaptor plate ensures that the QBE69G is compatible with fitments already offered for Quaife’s smaller QBE60G unit, including the Ford Duratec and Nissan 350Z.
Various input shaft options are also available from Quaife on request to suit customer requirements.
Quaife’s popular digital gear position indicator is also directly compatible with the new 69G and is available as an optional extra, ex-stock.
Forward orders are now being taken for the Quaife QBE69G unit, which is competitively priced at £6595.00 excluding VAT where applicable.

"The above list of Gear sets Uploaded with slight errors. Some ratio's are listed in the wrong column.
Please Check & confirm choices when contacting Quaife.."
Quaife begins deliveries of the New Heavy Duty QBE69G six speed sequential in-line Gearbox.
Quaife Engineering is delighted to confirm that it has delivered the first batch of its new heavy duty in-line six speed sequential gearbox, which is rated to over 750 bhp.
Designed to suit the high torque and power handling requirements of the endurance racing market, the new QBE69G incorporates the following key technical features:-
90mm shaft centres and large gears to maximise strength
Modular six speed gear cluster layout
An integral oil pump for optimised lubrication
A sleek, modern casing design
Semi-automatic paddleshift compatibility
Many choices of gear ratios
Overall weight approximately 45 kilograms
Choice of input shafts available
Use of the very latest dog engagement tooth profiles in the 69G has resulted in a six speed sequential unit which allows ultra rapid gear changes and not only offers users a choice of gear lever locations, but also the option to upgrade to a state of the art closed loop, pneumatically operated semi automatic paddle shift system.
The QBE69G gearbox is supplied with a choice of straight cut (spur) or helical gear ratio sets:
Gears: 1st 2nd 3rd 4th 5th 6th
Spur (1:1) 2.435 1.858 1.494 1.268 1.116 1.000
Spur (1:1) 2.759 2.050 1.565
Spur (o/d) 2.435 1.858 1.494 1.217 1.000 0.870
Spur (o/d) 2.759 2.050 1.565
Spur (o/d) 2.063 1.687 1.357 1.151 1.000 0.901
Spur (o/d) 2.211 0.868
Spur (o/d) 0.790
Spur (2o/d) 2.653 1.745 1.306 1.000 0.850 0.762
Helical 2.719 1.994 1.524 1.208 1.000 0.858
Bellhousing options including Dodge Viper and Sierra Cosworth YBT pattern are already available and, in addition, use of an specially designed adaptor plate ensures that the QBE69G is compatible with fitments already offered for Quaife’s smaller QBE60G unit, including the Ford Duratec and Nissan 350Z.
Various input shaft options are also available from Quaife on request to suit customer requirements.
Quaife’s popular digital gear position indicator is also directly compatible with the new 69G and is available as an optional extra, ex-stock.
Forward orders are now being taken for the Quaife QBE69G unit, which is competitively priced at £6595.00 excluding VAT where applicable.

"The above list of Gear sets Uploaded with slight errors. Some ratio's are listed in the wrong column.
Please Check & confirm choices when contacting Quaife.."
Thread Starter
Joined: Oct 2005
Posts: 12,390
Likes: 101
From: Spring, TX
It's very expensive (not for what it is, just in general) I don't expect it to be a big seller, but yes, we can certainly source one. The one for a Viper, for example, is around $15k
Thread Starter
Joined: Oct 2005
Posts: 12,390
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From: Spring, TX
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liqalu04
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Jan 2, 2022 12:58 PM




That is exactly what will be released in the future

