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Blackline Fiat 500 Abarth Helical LSD

Blackline Alfa, Fiat, Lancia Helical LSD


  • Alfa Romeo 145/146/147
  • Alfa Romeo 145/146 1.4 TS 90HP
  • Alfa Romeo 145/146/147 1.6 TS 105/120HP
  • Alfa Romeo 145/146 1.8 16V TS 144HP
  • Alfa Romeo 145/146/147 QV 2.0 16V TS 150/155HP
  • Alfa Romeo 145/146/147 1.9 JTD 100/105HP
  • Alfa Romeo 155/156
  • Alfa Romeo 155 1.7 TS 116HP
  • Alfa Romeo 155/156 1.8 TS 129/140HP
  • Alfa Romeo 155/156 2.0 (J)TS 144/150HP
  • Alfa Romeo 155 1.9 TD 90HP
  • Alfa Romeo GT
  • Alfa Romeo GT 1.8 TS 140HP
  • Alfa Romeo GT 2.0 JTS 165HP
  • Alfa Romeo GTV (MK2)
  • Alfa Romeo GTV 1.8 TS 144HP
  • Alfa Romeo GTV 2.0 (J)TS 150/166HP
  • Alfa Romeo Spider (MK5)
  • Alfa Romeo Spider 1.8 TS 144HP
  • Alfa Romeo Spider 2.0 (J)TS 150/166HP
  • Fiat 500 Abarth
  • Fiat Bravo / Brava
  • Fiat Bravo / Brava 1.8 16V 112HP
  • Fiat Bravo HGT 2.0 20V 147/154HP
  • Fiat Bravo / Brava 1.9 Turbo Diesel 75/100HP
  • Fiat Bravo / Brava 1.9 JTD 105HP
  • Fiat Coupe
  • Fiat Coupe 1.8 16V 131HP
  • Fiat Coupe 2.0 10V 147/154HP
  • Fiat Punto 1 (MK1)
  • Fiat Punto GT 1,2,3 133 HP
  • Fiat Punto 1.7 Turbo Diesel 60/70/72 HP
  • Fiat Punto 2 (MK2)
  • Fiat Punto HGT 1.8 16V 131 HP
  • Fiat Punto 1.9 JTD 80/85 HP
  • Fiat Punto 2B (MK2 - Facelift)
  • Fiat Punto HGT 1.8 16V
  • Fiat Punto 1.3 MJTD 70HP
  • Fiat Punto 1.9 JTD 85HP
  • Fiat Uno MK1 Late (C510 Box)
  • Fiat Uno MK2
  • Fiat Uno Turbo MK2 100/101HP
  • Fiat Uno Racing MK2 112/118HP
  • Lancia Delta MK1
  • Lancia Delta MK1 1.6 90/130HP
  • Lancia Delta MK1 1.9 TD 80HP
  • Lancia Delta MK2
  • Lancia Delta MK2 1.8 8V 90/97/105HP
  • Lancia Delta MK2 1.8 16V 115/132HP
  • Lancia Delta MK2 2.0 16V 139HP
  • Lancia Delta MK2 .9 TD 90HP

Please note this differential is also suitable for some models of Fiat Doblo, Marea, Multipla, Palio, Stilo, Strada, Tipo and Lancia Dedra, Lybra please enquire for further details.

    Helical LSD Advantages:-

    • Equal rotational speed to both wheels
    • Torque distributed according to traction
    • Minimal service requirements - no clutches
    • Quick reaction compared to viscous LSDs
    • Gentle and progressive engagement, low noise
    • Easily controlled power take-off and drifting
    • Gears and body manufactured from 8620 alloy steel
    • Direct replacement into stock differential
    Blackline Helical LSD's - How They Work
    The Blackline helical LSD's are torque biasing, that is they distribute torque between the wheels, loading more torque towards the wheel with the best traction thus improving performance and driveabitily. Especially in low grip situations.
    The helical gearing manages the distribution of friction within the LSD. When torque is applied to the helical gear system it creates force that pushes the gear into the differential body, thus creating friction. Increases of torque, increases the thrust force directly proprotional to the amount of torque. This allows the Blackline LSD to cope with considerable traction imbalance even under heavy power conditions, as would be the case on exiting a powered up corner. But at low torque conditions the LSD can differentiate quietly and smoothly, thus making the differential very suitable for normal road driving. The Blackline LSD uses the popular parallel axis helical geared configuration optimised for even load distribution. They are designed with a torque bias of 5:1 this means that if  one wheel loses traction then the wheel with the most grip can receive five times as much torque as the wheel that is slipping. However, five times zero is still zero, so all these helical LSD's work best when both wheels are 'planted' and some traction is still available on the slipping wheel. In practice this is rarely a problem as there is always some 'drag' on the slipping wheel, however some drivers expertly use left foot braking to partially lock the spinning wheel.
    Note - Helical LSD's work especially well when combined with modern anti-lock braking systems.



    Your IP Address indicates that you are in the United States or Canada and we are currently unable to sell into those countries. If you do not reside in the United States or Canada then please e-mail your request directly to sales@rallydesign.co.uk quoting Ref: CATINFO/SG2/

    Blackline Fiat 500 Abarth Helical LSD
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    Blackline Fiat 500 Abarth Helical LSD
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    Blackline Fiat 500 Abarth Helical LSD
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    PLEASE NOTE: All prices exclude VAT at 20%.
    Where applicable, this is calculated and added during the checkout procedure.
    This product was added to our catalogue on Thursday 12 December, 2019.
    Current Reviews:

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    Unit 4 St. Augustine's Business Park, Estuary Way, Swalecliffe, Kent, CT5 2QJ • Tel 01227 792792 • Fax 01227 794888
    Vehicle Identification: References to vehicle marques such as Ford, Vauxhall, Westfield, Caterham etc. are for vehicle fitment identification purposes only.
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