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ATS Carbon Clutches Prospec II / Spec II

One page leaflet - click here

Equipped with the newly designed pressure plates & middle plate(s), Spec II can provide a very comfortable driving with much less pedal effort than before or offer a significantly higher torque delivery with the same pedal effort as the previous version.

The new version also offers more choices on the clamping rate from 1,100 kg . The Prospec II (Single carbon) w/ 1,600 kg clamping rate achieves the rated horse power of 390 at the wheel with a lighter pedal effort than the previous Prospec w/ 1,000kg clamping rate. Moreover, the Spec II twin carbon clutch w/ 2,300kg clamping rate is rated at a whopping 900 hp with the same pedal effort of the previous 1,350kg model. In 2010, ATS added Prospec II (Single carbon) 2,400kg which boasts 550 hp rating (at the wheel) with lighter than stock pedal effort.

For an acutal example, the stock pedal effort of Nissan 350Z HR is around 13kg. With the previous spec I carbon clutch, even though you choose a ligther clamping rate of 1,100kg, the pedal effort is around 15kg. (you will definately feel the increase of the pedal effort compared with the stock clutch). However, if you choose the carbon twin spec II (CN23H2160-11), with the same clamping rate, the pedal effort is less than 13kg. You would love the light pedal effort!

The following is a comparison table

Clutch model # of discs Clamping rate (kg) Pedal Effort Rated HP (at the wheel) Leverage factor
Prospec Single
1,000
-10 % to 0 % of stock
250
1
Prospec Single
1,300
0 % to +20 % of stock
340
1
Prospec Single
1,600
+30% to +50% of stock
400
1
Old Twin
1,100
0 % to +20 % of stock
600
1
Old Twin
1,350
+30% to +50% of stock
740
1
Old Triple
1,100
0 % to +20 % of stock
900
1
Old Triple
1,350
+30% to +50% of stock
1100
1
Prospec II Single
1,600
-10 % to 0 % of stock
390
2
Prospec II Single
2,200
+0% to +20% of stock
500
2
Spec II Twin
1,100
-10 % to 0 % of stock
600
1.35
Spec II Twin
1,400
-10 % to 0 % of stock
740
1.73
Spec II Twin
1,500
0 % to +20 % of stock
800
1.35
Spec II Twin
1,800
+30 % to +50 % of stock
930
1.35
Spec II Twin
1,900
0 % to +20 % of stock
950
1.73
Spec II Triple
1,100
-10 % to 0 % of stock
900
1.35
Spec II Triple
1,400
-10 % to 0 % of stock
1,150
1.73
Spec II Triple
1,500
0 % to +20 % of stock
1,200
1.35
Spec II Triple
1,800
+30 % to +50 % of stock
1,300
1.35
Spec II Triple
1,900
0 % to +20 % of stock
1,300
1.73
         
Porsche        
Old Single
1,200
+20% to +40% of stock
340
1
Old Twin
1,100
+20% to +40% of stock
600
1
Old Triple
1,100
+20% to +40% of stock
850
1
Prospec II Single
2,000
+20% to +40% of stock
480
2
Spec II Twin
2,000
+20% to +40% of stock
850
2
Spec II Triple
2,000
+20% to +40% of stock
1,200
2


Go to the application list - click here

twin clutch
triple clutch
Twin carbon clutch
Triple carbon clutch