ATS Type DD LSDs - first one released on July 2015
Type DD Honda FD2 |
Type DD Evo Rear |
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With the advanced case design for the superb oil circulation, the ATS Type DD LSDs can handle the tough endurance race (w/ slick tires) without any deteriorated performance.
● Naming
The Type DD LSDs have the Type DD or DD at the end of the model number. "Type DD" stands for (super) Drivability & Durability.
● Features
In order to make the differential case more solid and stronger, the carburized quenching process is applied to the chromoly steel. The super durable new case virtually eliminates the flexure, the encroachment of the disc edge, and the wear of the bearing boss.
We know that vigorous oil circulation and ample oil supply on the clutch discs are essential to prevent the burning discs or peeling off the carbon chips. To achieve that objective, we totally redesigned the oil inflow channels so that the pressure of inside the LSD case is kept high by the centrifugal force generated from the gradual oil discharge from the outer diameter.
The outer edge grooves of the new LSD case release the oil so effectively that the sludge which frequently generated on the break-in process is also discharged with the oil. The eliminated sludge no longer causes the wear of carbon chips and clutch discs, resulting in a significant slowdown on decline of the initial torque.
The new LSD case has enough room for 4 to 6 coned shape springs, which enables to make a high initial torque carbon LSD and carbon hybrid LSD.
All the improvements bring a superb durability which can withstand the extremely harsh driving conditions as well as an outstanding controllability for any driver from the novice to the professional.
● Application
As of Setember 2015, the line up is as follows. (ATS plans to add more applications)
● Naming
The Type DD LSDs have the Type DD or DD at the end of the model number. "Type DD" stands for (super) Drivability & Durability.
● Features
In order to make the differential case more solid and stronger, the carburized quenching process is applied to the chromoly steel. The super durable new case virtually eliminates the flexure, the encroachment of the disc edge, and the wear of the bearing boss.
We know that vigorous oil circulation and ample oil supply on the clutch discs are essential to prevent the burning discs or peeling off the carbon chips. To achieve that objective, we totally redesigned the oil inflow channels so that the pressure of inside the LSD case is kept high by the centrifugal force generated from the gradual oil discharge from the outer diameter.
The outer edge grooves of the new LSD case release the oil so effectively that the sludge which frequently generated on the break-in process is also discharged with the oil. The eliminated sludge no longer causes the wear of carbon chips and clutch discs, resulting in a significant slowdown on decline of the initial torque.
The new LSD case has enough room for 4 to 6 coned shape springs, which enables to make a high initial torque carbon LSD and carbon hybrid LSD.
All the improvements bring a superb durability which can withstand the extremely harsh driving conditions as well as an outstanding controllability for any driver from the novice to the professional.
● Application
As of Setember 2015, the line up is as follows. (ATS plans to add more applications)
| Veicle | Model # | Discription | Note |
| Honda | CFHB87G33T DD | 1.5 way Carbon Spec 3 | 12 discs, 15kg initial torque |
| DC2, EK9 | CFHB87F33T DD | 1.5 way Carbon Spec 4 | 12 discs, 20kg initial torque |
| CFHB87E33T DD | 1.5 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| CFHC87G33T DD | 1 way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CFHC87F33T DD | 1 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| CFHC87E33T DD | 1 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| RHFB8733T DD | 1.5 way Metal D24 | 24 discs | |
| RHFC8733T DD | 1 way Metal D24 | 24 discs | |
| Honda | CFHB87G53T DD | 1.5 way Carbon Spec 3 | 12 discs, 15kg initial torque |
| DC5, EP3 | CFHB87F53T DD | 1.5 way Carbon Spec 4 | 12 discs, 20kg initial torque |
| CFHB87E53T DD | 1.5 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| CFHC87G53T DD | 1 way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CFHC87F53T DD | 1 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| CFHC87E53T DD | 1 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| RHFB8753T DD | 1.5 way Metal D24 | 24 discs | |
| RHFC8753T DD | 1 way Metal D24 | 24 discs | |
| Honda | CFHB87G93T DD | 1.5 way Carbon Spec 3 | 12 discs, 15kg initial torque |
| FD2 | CFHB87F93T DD | 1.5 way Carbon Spec 4 | 12 discs, 20kg initial torque |
| CFHB87E93T DD | 1.5 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| CFHC87G93T DD | 1 way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CFHC87F93T DD | 1 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| CFHC87E93T DD | 1 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| RHFB8793T DD | 1.5 way Metal D24 | 24 discs | |
| RHFC8793T DD | 1 way Metal D24 | 24 discs | |
| Honda | CHRA95G12 DD | 2 way Carbon Spec 3 | 12 discs, 15kg initial torque |
| S2000 | CHRA95F12 DD | 2 way Carbon Spec 4 | 12 discs, 20kg initial torque |
| CHRB95G12 DD | 1.5 way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CHRB95F12 DD | 1.5 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| RHRA9512 DD | 2 way Metal | 16 discs | |
| RHRB9512 DD | 1.5 way Metal | 16 discs | |
| Mitsubishi | CMRA87G14 DD | 2 way Carbon Spec 3 | 12 discs, 15kg initial torque |
| Evo Rear | CMRA87F14 DD | 2 way Carbon Spec 4 | 12 discs, 20kg initial torque |
| CMRA87E14 DD | 2 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| CMRB87G14 DD | 1.5way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CMRB87F14 DD | 1.5 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| CMRB87E14 DD | 1.5 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| CMRC87G14 DD | 1 way Carbon Spec 3 | 12 discs, 15kg initial torque | |
| CMRC87F14 DD | 1 way Carbon Spec 4 | 12 discs, 20kg initial torque | |
| CMRC87E14 DD | 1 way Carbon Spec 5 | 16 discs, 20kg initial torque | |
| RMRA8714 DD | 2 way Metal D24 | 24 discs | |
| RMRB8714 DD | 1.5 way Metal D24 | 24 discs | |
| RMRC8714 DD | 1 way Metal D24 | 24 discs | |
| Subaru | CSFB95G23 DD | 1.5 way Carbon Spec3 | 12 discs, 15kg initial torque |
| STi 6MT Front | CSFB95F23 DD | 1.5 way Carbon Spec 4 | 12 discs, 20 kg initial torque |
| RSFB9523 DD | 1.5 way Metal | 16 discs | |