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Diferencial Torsen del S2000


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#1 Storm

Storm

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Escrito 08 febrero 2018 - 13:56:28

Muy buenas,

Abro este hilo para tratar de conseguir info sobre el diferencial de serie del S2000. Cosa que no he conseguido hasta ahora.

Me gustaría saber:

-El tipo de Torsen (entiendo que 1).

https://en.wikipedia...ki/Torsen#Types

 

-The original Torsen T-1 (Type A) uses crossed axis helical gears to increase internal friction. The Type I can be designed for higher torque bias ratios than the Type II, but typically has higher backlash and the potential for Noise, Vibration, and Harshness (NVH) issues, and requires a precise setup/installation.
-The later Torsen T-2 (Type B ) uses a parallel gear arrangement to achieve a similar effect. There is also a specialist application of the T-2, known as the T-2R (RaceMaster).
-The latest Torsen T-3 (Type C) is a planetary type differential, in that the nominal torque split is not 50:50. The Type C is available as single or twin version; the Torsen twin C differential has front and center differential in the same unit.

 

Edit: NO, es un Torsen T-2 (Type B ).

 

-El lock ratio (TBR) (para saber el factor de multiplicación entre ruedas):

https://www.s2ki.com...8/#post14178990

 

"Torque bias ratio (TBR) represents the "locking effect" of the differential. More specifically, it indicates how much more torque is sent to the high traction wheel (or axle) then is sent to the spinning wheel. For example, when a differential has a TBR of 3:1, 3 times the torque the spinning wheel can maintain (75% of the total torque) will go to the higher traction wheel... When shipped the torque bias ratio (TBR) is approximately 3.2:1. After break-in, it stabilizes at about 2.6:1."
"Using less viscous oil will also raise TBR. A more viscous fluid will lower it. If you are changing the oil, be sure that you still use a GL-5 specification lubricant."
Further: "A GL-4 or GL-5 gear oil is required by Torsen Type 1 units. This oil provides high-pressure additives needed to prevent the oil from breaking down under the extreme conditions generated by the tooth mesh. A 75W-90 is recommended, but higher or lower viscosities can be used if they meet GL-4 or GL-5 specification. Either synthetic or conventional oils can be used as well. "

 

https://torsen.com/faq/

 

What is the TBR for my application?
In general, the TBR level of Type-2 products is between 2:1 and 2.5:1, whereas T-2R models are in the 3:1 to 4:1 range. This varies depending on the specific model. The TBR level of Type-1 differentials can be anywhere from 2.8:1 to 4:1, depending on the design requirements.

 

-Vías (1, 1.5 o 2):

https://www.s2ki.com...62&postcount=19

 

Some manufacturers make LSD's in different configurations and are commonly classified as 1 way, 1.5 way and 2 way. This designation reflects the design of the cam groove which enables the LSD to function differently under different loads. A 1 way differential means that the cam is shaped in such way as to have positive lock only when accelerating. The 2 way is constructed in a way to have positive lock motion in both acceleration and deceleration mode (Figure 3). The 1.5 way functions almost same as a 2 way but provides less lock when decelerating. The 1.5 way can provide more forgiving balance when braking than a full 2 way setup, although it is less effective for true racing applications, it provides easier operation for beginners in throttle off conditions. 1.5 way is also very effective for front wheel drive cars which need extra stability during braking.

 

Simple curiosidad.

Muchas gracias.


Editado por Storm, 08 febrero 2018 - 22:03:25.


#2 Storm

Storm

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Escrito 08 febrero 2018 - 17:14:22

Me gustaría saber:

...

 

El aftermarket de Quaife (QDF14U - Honda S2000 Quaife ATB Helical LSD differential) tampoco aclara mucho:

https://shop.quaife....sd-differential

 

Quaife ATB Helical LSD differential for the Honda S2000. A direct replacement for the standard open differential, the Quaife ATB Helical LSD differential transforms your car’s performance. Unlike a conventional plate-style limited slip differential, the Quaife ATB Helical LSD differential relies on gears rather than clutch plates for its operation. That means it is much smoother in operation. The Quaife ATB Helical LSD differential never locks harshly with a set pre-load of wheel slip across the driven axle, like a conventional LSD. Rather, the Quaife ATB differential automatically biases the torque away from the spinning wheel across the axle, to a constantly varying degree, and never locks. The Quaife ATB Helical LSD differential has many benefits over a standard open differential, including maximising traction and minimizing wheel spin, eliminating torque steer and snatching in front wheel drive cars compared to conventional LSD units, and a maintenance-free design which retains the standard oil lubrication. The Quaife ATB Helical LSD differential is proven in circuit and drag racing, rallying and road use, and is produced from Corus steel billets, and is CAD designed and CNC machined, then inspected to ISO 9001 standards. With over 250 applications - the Quaife ATB Helical LSD differential is the best option to utilise your cars performance. Quaife ATB Helical LSD differentials are used by Ford, General Motors and Daimler-Chrysler as original equipment. The Quaife ATB Helical LSD differential is also now subject to a lifetime warranty (subject to terms and conditions). This product is available direct from QUAIFE, please confirm your application using the attached technical drawing.

 

qdf14u.jpg

 

atbdiff_19.jpg

 

https://shop.quaife....iles/QDF14U.pdf


Editado por Storm, 08 febrero 2018 - 17:16:21.


#3 Raytrance

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Escrito 08 febrero 2018 - 18:05:12



#4 Storm

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Escrito 08 febrero 2018 - 21:44:39

-El tipo de Torsen (entiendo que 1).

https://en.wikipedia...ki/Torsen#Types

 

Noop. Aquí dicen que es un Torsen T-2 (Type B ):

https://www.s2ki.com...6587/#post65557

 

Edit: Efectivamente, acabo de leer las descripciones con más pausa y NO es el 1:

https://www.s2ki.com...3/#post24061739

 

OEM%20Desmontado%201.JPG

 

OEM%20Desmontado%202.JPG

 

Diagrama%20OEM%201.JPG

 

Diagrama%20OEM%202.JPG

 

Video de rodaje

 

:uff:


Editado por Storm, 08 febrero 2018 - 22:00:21.


#5 Storm

Storm

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Escrito 09 febrero 2018 - 21:22:39

Muy buenas,

Abro este hilo para tratar de conseguir info sobre el diferencial de serie del S2000. Cosa que no he conseguido hasta ahora.

Me gustaría saber:

-El tipo de Torsen (entiendo que 1).

https://en.wikipedia...ki/Torsen#Types

Edit: NO, es un Torsen T-2 (Type B ).

-El lock ratio (TBR) (para saber el factor de multiplicación entre ruedas):

https://www.s2ki.com...8/#post14178990

https://torsen.com/faq/

-Vías (1, 1.5 o 2):

https://www.s2ki.com...62&postcount=19

Simple curiosidad.

Muchas gracias.

 

Acabo de estar leyendo este antiguo hilo:

http://clubhondaspir...-contra-torsen/

 

El de Kaaz (DBH2010) es de discos:

http://www.kaazusa.c...hondaacura.html

 

8601_KAAZ_DBH2010_FS02-01@2x144684464456

 

MODEL     ENGINE         GRADE    YEAR     M/T     POSITION     NORMAL     L.S.D. TYPE     PLATES     PLATE SIZE    1.5WAY CAM     REMARKS
S2000                   
AP1     F20C VTEC           99.07~     MT     REAR     Torque Sensing     BASIC         12     M         DBH2010           
AP2     F22C VTEC           2003~     MT     REAR     Torque Sensing     BASIC         12     M         DBH2010     

 

Más info:

https://tomson.com.p...00-AP1-AP2.html

 

Producer:    Kaaz
Differential type:    Plate type 1.5 way
Ramp angle:    45/20 (1.5 way)
Preload:    6.5-7.0 kgm
Plates:    12

 

http://realstreetper...2C-DBH2010.html

 

KAAZ produces two configuration types commonly classified as 1.5 way or a 2 way. This designation reflects the design of the cam groove which enables the LSD to function differently under acceleration/deceleration loads. The 2 way is constructed in a way to have positive lock motion in both acceleration and deceleration mode, the 1.5 way functions similar to a 2 way under acceleration however provides less lock-up when decelerating. The 1.5 way may provide more forgiving balance depending on vehicle setup and driver skill when braking is compared to a 2 way setup. For Front Wheel Drive vehicles the 1.5 way is also very effective providing extra stability during braking.
Typically the 1.5 way differential is suitable for all types of motorsports driving. With optimized performance during acceleration it carries a lighter lockup on deceleration which is best suited for traditional road racers. Despite the fact that 1.5 way units have slighter lock up on deceleration, many users may still use this cam type for aggressive motorsports such like drifting or low gear auto crossing & gymkhana.
Kaaz Limited Slip Differential (LSD) is the choice differential for drifting, road racing, autocross/gymkhana, drag racing, spirited driving, and any other forms of motorsport. Kaaz LSDs react fast without fail to provide much needed traction to the wheels when cornering and accelerating. Kaaz Differentials are designed w/ the largest and most number of friction plates to increase drivetrain response and reliability under harsh driving conditions.
With Kaaz Limited Slip Differentials, you get the following advantages:
-Kaaz LSD will work when the slightest torque is applied inceasing drivetrain feedback.
-Better transfer of power from the engine to the drivedrain with minimal loss of power.
-Plate Abrasions are reduced by spreading power to more surface area on the bigger plates.
-Increased number of friction plates to greatly improve abrasion efficiency and heat capacities.
-All parts on the LSD have been made larger, so the overall strength of the main body is increased.

 

https://www.mdspares...oad/1/Kaaz-info

https://www.mdspares...tions-Part-List

 

Ok, entiendo que el Torsen de serie es de 1 vía.


Editado por Storm, 09 febrero 2018 - 21:40:21.


#6 Storm

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Escrito 23 octubre 2023 - 17:04:46

Abro este hilo para tratar de conseguir info sobre el diferencial de serie del S2000. Cosa que no he conseguido hasta ahora.

 






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