Forge Blow Off Adaptor

Forge Blow Off Adaptor

The FMDVMCS is a sandwich type adaptor that fits between the existing electrical solenoid and the turbo charger housing on the BMW Mini Cooper S N14 engines 2007/08(R56/57 *), Peugeot 1.6 turbo engines as found in the 207 and GTI , 208 GTI, 307, 308 and Citroen DS3.

This product is not suitable for the 2008 onwards Cooper S installations.

On these engines, built into the turbocharger housing, is a bypass facility. This allows charge air to be recirculated around the turbo charger from the boost side back to the intake side. This recirculation path is opened and closed by means of an electrical connection from the engine management, to a solenoid that is mounted on the turbocharger housing. As you accelerate, the turbo charger vanes are spinning and boost pressure is increased, literally blowing into the engine cylinders. Then when you change gear, you take you foot off the accelerator momentarily, select the next gear, and accelerate again. As you take your foot off the accelerator the throttle valve to the engine closes. The problem here is that during this process the turbo is still spinning and the boost pressure that it is producing has no where to go. (This is a bit like putting you hand over a hair dryer so the air cannot get out) What happens at this point is the turbo starts to stall, the spinning vanes slow down (incurring alot of stress) and the boost pressure drops. When you open the throttle valve again by pushing down on the accelerator (demanding more power) the turbo has lost its momentum, boost pressure and there is a pause or a "Lag" before the engine is producing the required power once again.

To combat this loss of power and stress on the turbo, a recirculation or diverter valve is used. On the Mini, when the throttle valve closes, the engine management opens the recirculation route around the turbo. This gives the charge air an alternative route and allows the turbocharger to keep spinning so that when you accelerate again there is no "lag" or waiting period. This system works well and is adopted by nearly all vehicle manufacturers on turbo charged petrol engine applications. The only downside to this system is that a turbo chargers produce heat. (The hot air that leaves a turbo is cooled by passing it through an intercooler before it enters the engine. The cooler the air the more power is produced). By recirculating the hot air back into the intake side of a turbo the temperatures increase. This is where the Blow Off or Dump valve plays its part. By expelling the charge air to atmosphere rather than recirculating it, you do not increase the intake air temperature but you do allow the turbo to keep spinning. The side effect which is unacceptable to most vehicle manufacturers is the noise of the valve expelling the air.

By fitting the FMDVMCS between the existing solenoid and the turbo housing (this involves removing only 3 bolts) the air is re-directed to atmosphere rather than recirculated. It should be noted that the engine management also uses this valve to decrease engine power when necessary. An example of this is by the (DSC) Dynamic Stability Control system. Although you would not normally hear this occurring, when a blow off adaptor is fitted you may well hear the air being expelled when the DSC operates (going too fast around a bend for example).

 

In The Box
1 x FMDVMCS Adaptor
3 x Socket Cap Bolts
1 x Instructions
1 x Forge Sticker

 

In order that you purchase the correct valve for your vehicle please refer to the fitment table below before ordering.

 

Product Code Fitment
FM207V Recirc Valve N14 Engines Cooper S 2007-10, JCW Cooper S 2007-2012
FMDV60R Recirc Valve N18 Engines Cooper S 2011 On, JCW Cooper S 2013 onwards
FMDVMCS Blow Off Adaptor Plate For 2007/8 Cooper S Turbo only
FMDVR56A Blow Off Valve N14 Engines Cooper S 2007-10, JCW Cooper S 2007-2012
FMDVR60A Blow Off Valve N18 Engines Cooper S 2011 On, JCW Cooper S 2013 onwards

Dit product is compatibel met volgende voertuigen

Voertuig Merk: Voertuig Model: Voertuig Variant: Vanaf: Tot: Motorcode: Notes
Mini Cooper R56 Cooper S Works 2007 2008 N14B16A 1.6L - FWD Petrol
Peugeot 207 GT 2006 2010 EP6DT 1.6L - FWD Petrol
Peugeot 207 GTI 2007 2010 EP6DT 1.6L THP 175 - FWD Petrol
Peugeot 207 GTI 2007 2010 EP6DTS 1.6L THP 175 - FWD Petrol
Peugeot 208 GTI 2013 EP6CDTX 1.6L - FWD Petrol
Peugeot 308 GT 2008 2010 EP6DTS sw 1.6L THP 175 - FWD Petrol
Peugeot 308 GT 2008 2010 EP6DTS 1.6L THP 175 - FWD Petrol
Peugeot 308 GT 2010 2013 EP6CDTX 1.6L THP 200 - FWD Petrol
Peugeot 308 GT 2011 2013 EP6CDTX 1.6L THP 200 - FWD Petrol

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: €90,84 (incl. BTW)
  • Excl. BTW: €75,07

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