Forge Fast Road Dump Valve
Made from billet aluminium, this atmospheric diverter valve dumps the charge-air to atmosphere creating the "Whoosh" sound most commonly associated with rally cars when the throttle is lifted. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably. All Forge Motorsport Single-Piston and Diaphragm Atmospheric Valves have been designed and built with the intent of venting 100% of the residual charge air remaining in your forced induction system to the atmosphere at throttle lift.
Forge Motorsport nor any of it’s Authorised Distributors can assume any responsibility for any adverse effects resulting from the installation of this valve onto a vehicle whose engine-management-system, whether factory or aftermarket, is not capable of compensating for the loss of metered air through a vent-to-atmosphere valve such as this.
Fitment Guide: Suitable for ALL turbo cars without an Air Flow Meter
Please select whether you would like a black or polished silver valve using the options above.
In The Box:
1 x FMDV001 Valve
1 x Forge Sticker
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 | Escort | MK 6 RS Cosworth | 1992 | 1995 | N5F | 2.0L - 4WD Petrol |
| Ford | Escort | MK 7 RS Cosworth | 1995 | 1996 | N5F | 2.0L - 4WD Petrol |
| Ford | Fiesta | MK 3 RS Turbo | 1990 | 1992 | LHA | 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 | N5 | 2.0L Sierra Sapphire - RWD Petro |
| Ford | Sierra | RS Cosworth MK 2 | 1988 | 1990 | N5B | 2.0L Sierra Sapphire - RWD Petro |
| Ford | Sierra | RS Cosworth MK 2 | 1988 | 1990 | CFI | 2.0L Sierra Sapphire - RWD Petro |
| Ford | Sierra | RS Cosworth MK 2 | 1990 | 1993 | N5C | 2.0L Sierra Sapphire - 4WD Petro |
| Ford | Sierra | RS Cosworth MK 2 | 1990 | 1993 | N5D | 2.0L Sierra Sapphire - 4WD 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.
