WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
The ALTA Blow Off Valve Spring Upgrade is a great alternative to complete BOV replacements. Fits all MINI Turbo Models including Cooper S and JCW! The ALTA replacement spring is a simpler, less expensive and better performing upgrade.
The ALTA BOV Spring Upgrade for your stock Blow Off Valve is a very effective way to make your Turbocharged MINI hold more boost between shifts. This reduces turbo lag and boosts performance. The stiffer spring still allows for normal functioning of the BOV, but keeps more pressure in the boost tubes to prevent any lapse in power.
Anyone with simple hand tools can install this part in under 30 minutes. Simply remove a handful of parts including the electronic BOV and then just replace the factory spring and your done! Check out the instructions above for a step by step explanation.
Our product designers developed this test fixture to test a variety of spring rates before even attempting an in-car test.
A key to the design of this part is ensuring the spring is not too stiff. Because this is an electromechanical device, it is crucial that electronic solenoid is able to open the blow off valve. The ideal spring rate was chosen and then tested to work perfectly in excess of 40 psi of boost! While you will never see that level of boost, it is comforting to know that your blow off valve is now up to the task of handling anything you throw at it!
Here is why the ALTA Blow Off Valve Spring is the ideal upgrade:
A blow off valve (BOV) or dump valve is a pressure release system present in most turbocharged engines. Its purpose is to prevent compressor surge, and reduce wear on the turbocharger and engine. Blow off valves relieve the damaging effects of compressor "surge loading" by allowing the compressed air to vent to atmosphere, making a distinct hissing sound, or recirculated into the intake upstream of the compressor inlet. The turbo MINI Cooper S and JCW both have BOVs that are controlled by the ECU. These large solenoids opens the valve and dumps the excess boost pressure. The ALTA Blow Off Valve Spring upgrade is a stiffer spring to make the valve close faster after shifts and hold more boost! » Read More
ALTA Performance warrants to the original purchaser, all ALTA products to be free from defects in material and workmanship within a sixty (60) months period from the date of purchase. *Some exclusions apply
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This product features a 5 year warranty Read Full Warranty
In The Box
|(1) ALTA Blow-off valve spring upgrade|
|2007-2013 MINI Cooper S||Yes|
|2009-2013 MINI Cooper JCW||Yes|
|2008-2013 MINI Clubman S||Yes|
|2008-2013 MINI Cooper Convertible S||Yes|
|MINI Cooper Non-Turbo||No|