Mail From: (email redacted) For my money I would get the Torsen. This read-only message was archived from a public mail list. Type A Torsen Gear LSD. All of these 4.3 differentials also came with a Type 1 or a Type 2 Torsen, the Type 2s coming from post 96 special edition cars. The Mazd If this isn't an option then you can call Mazda at 1-800-639-1000 (USA) and get a free brochure on the Miata mailed to you. New stock Spec Miata Type 2 Torsen from Mazdaspeed - Duration: 1:34. miataboxes 1,279 views. If longevity is an issue the Torsen is hands down the winner since it will also never wear out. The former was picked out by the Japanese team, and is a high-content model the color of a … (A) Torsen Type: Superior torque rating of both the diff and the ring/pinion over the early unit. The latest Torsen T-3 (Type C) is a planetary type differential, in that the nominal torque split is not 50:50. (Q) What is the pros and cons of the Torsen vs the Competition clutch type . and the S Special option. the differences lie in the ratio of transfer(how much more one wheel can turn versus the other) and the amount of torque it is capable of handling, with some fancy … It gets better suspension, with bilstein dampers, a 6 speed and a Torsen LSD. (Q) What is the pros and cons of the Torsen vs the Competition clutch type . Comes with 4.10:1 gears in 94-97, 4.30:1 in '99+ and 3.909 with the 6-speed. As with any car, you should make yourself familiar with the options and the dealer cost of those options (new car) or the NADA book value (used car) from one of the many sources of such information. The Torsen Type I was on offer in the earlier NA 1.8’s and the Torsen Type II was made available from around 1995 through to the end of the NB’s life. (A) Torsen Type: Superior torque rating of both the diff and the ring/pinion over the early unit. Type-2 and T-2R models can operate in a wide range of fluids but share lube with other components that may have specific needs. If longevity is an issue the Torsen is hands down the winner since it will also never wear out. ... 1.8 Miata Torsen LSD behaves just like an open differential - … Consult your vehicle’s owner’s manual or with the manufacturer of the ring & pinion set (if not OEM) for their recommendation. My links page has the Torsen SAE white paper too. NA and NB Miata 89-05 (1st and 2nd gen). All the helical gear diffs accomplish the same thing, a one-way transfer of torque, allowing them to transfer torque to both wheels at a continually varying amount based on feedback from each wheel. There is also a specialist application of the T-2, known as the T-2R (RaceMaster). NBs saw the milestones of the 500,000th Miata and the 750,000th Miata. (The later models have a LSD more prone to failing) I ended up with a regular 1.8 though but it's a version that came with the nicest interior and the Torsen LSD but just a 5 speed. I concluded a 2002-2003 NB 1.8i is the best model. The 4.3 1.8 differential was only available for a few years on a few special editions, the RS Limited being one (only 500 units made!) Comes with 4.10:1 gears in 94-97, 4.30:1 in '99 and 3.909 with the 6-speed. Differential Centres - Torsen The 1.8 differentials came from the Mazda factory with the optional and more desirable TORque SENsing LSD centre or Torsen for short. The later Torsen T-2 (Type B) uses a parallel gear arrangement to achieve a similar effect. Type A torsen units are high torque distribution units suited for sport driving more than the Type-B. I have a description of the action of both LSD types on my LSD web page. Torsen® Type-1 differentials require lubricant with a GL-5 rating.