Forge Adjustable Actuator

Forge Adjustable Actuator

This actuator is designed for the Ford Sierra Cosworth (two wheel drive version) or the Ford Escort RS turbo. This product is built with a predetermined actuator spring suitable for at, or slightly above factory boost levels. The actuator can be assembled with a stiffer spring upon request. Please contact us directly concerning this process. It is designed and built with the intention of increasing the boost output of a turbocharged system. We cannot guarantee compatibility with all applications, nor the ability to increase the boost output beyond a level that is within the parameters set by the engine-management-system of the given vehicle at the time of installation, whether that system is factory or aftermarket.

Forge Motorsport nor any of it’s authorised distributors can assume any responsibility for any adverse effects resulting from the installation and tuning of this product onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of allowing for the desired level of adjustment. While Forge Motorsport is happy to supply you with an actuator capable of holding boost beyond that of your factory unit we are in no way capable of knowing nor suggesting that your vehicle's engine or related systems are capable of supporting or surviving the stresses of such elevated boost pressure.


In The Box:
1 x FMACCOS2 Actuator
1 x Forge Sticker

This actuator is built with a Yellow coded spring as standard. If you require the FMPACTUN spring tuning kit seen in the associated products below, you will need to select the Diaphragm Type 3, 048 option.

This product is compatible with the following vehicles

Vehicle Make Vehicle Model Vehicle Variant From To Engine Notes
Ford Escort MK 3 RS Turbo 1985 1986 LNA 1.6L - FWD Petrol
Ford Escort MK 4 RS Turbo 1986 1991 LNB 1.6L - FWD Petrol
Ford Sierra Cosworth MK 1 1986 1987 N5 2.0L - RWD Petrol
Ford Sierra RS 500 Cosworth MK 1 1987 1987 CFI 2.0L - RWD Petrol
Ford Sierra RS Cosworth MK 2 1988 1990 CFI 2.0L Sierra Sapphire - RWD Petro
Ford Sierra RS Cosworth MK 2 1988 1990 N5 2.0L Sierra Sapphire - RWD Petro
Ford Sierra RS Cosworth MK 2 1988 1990 N5B 2.0L Sierra Sapphire - RWD Petro

er the last fifteen years Forge Motorsport have grown in to one of the UK's premier manufacturers of products and accessories for race, competition and road vehicles. When you purchase from Forge Motorsport you are assured of quality products and a service to match. If you require a particular product that is not listed in this catalogue or on the web site, please call or email and we will gladly assist with any queries.

All Forge products are guaranteed for life with the Forge "No Hassle" service promise.

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  • RRP: £123.30 (incl. Tax)
  • Ex Tax: £102.75

Tags: Forge Adjustable Actuator