Forge Turbo Blow-off Valve Adapter
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Forge Turbo Blow-off Valve Adapter Forge Turbo Blow-off Valve Adapter Forge Turbo Blow-off Valve Adapter

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Forge Turbo Blow-off Valve Adapter

SKU:  FMDVMCS
WEIGHT:  2.00 lbs
brand: Forge Motorsport
Our price: $94.95
 
qty
 
Average customer rating:
5 out of 5
(based on 403 votes and 0 reviews)
 

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Details

The FMDVMCS is a sandwich type adapter that fits between the existing electrical solenoid and the turbo charger housing.On the Coopers S turbo, 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 of 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 a lot 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 adapter is fitted you may well hear the air being expelled when the DSC operates (going to fast around a bend for example)

copy and paste for instructions:
http://www.forgemotorsport.com/media/fmdvmcs(2).pdf

Fits these MINI models:
R55: 2008-2010 Clubman: Cooper S
R56: 2007-2010 Hatchback: Cooper S
R57: 2009-2010 Convertible: Cooper S

Does not fit 2011 and newer MINIs.

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Customers' comments

Installed short shifter kit with no problems except kit did not come with 'o' ring for shifter shaft. Factory 'o' ring was too larger off of OEM shift lever. I would also recommend some good out door adhesive to reinstall dust cover on shift box, because some of the locking tabs may break off when removing. And with this short shifter kit there is no need to modify shifter box as some other products require you to leave dust cover off or purchase a drop cover to accommodate the longer shift lever. Thank you so much Out Motoring for another great product and customer service, Jon
Jon Newman

Out Motoring deserves kudos for their service! I was prepping for a road trip when less than two weeks prior I decided to upgrade two engine mounts and install a short shift adapter in my R53. Aaron and Brittany were hugely helpful in getting me ready! Brittany was able to find the mounts I wanted in stock, and Aaron helped me with info on the short shifter I was looking at. Brittany helped me again when I changed my mind, by modifying my order on the fly. They got the components to me in four days - plenty of lead time before my scheduled installation appointment and well in advance of the trip. BIG Thanks to Out Motoring for their help. This outfit will be at the top of my vendor list for future maintenance and upgrade needs.
Brian

I live in Sydney Australia and 8 have to say I’m very impressed.
I have ordered numerous items and the customer service and delivery speed is second to none.
Keep up the great work Outmotoring.
Mark

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