Tomei Blow Off Valve Mitsubishi EVO 7-9
In a turbo engine, by closing a throttle in accelerator-off, the boosted air by the turbine sometimes flow backwards to a turbine, and may cause a turbine blow. Then, in order to prevent damaging turbine at the time of accelerator-off, the blow-off valve is installed between a turbo and a throttle. Stock blow-off valve of Evo is equipped with the function that relieves the boost pressure if the boost goes up too much at the time of accelerator-on. Therefore, the boost of Evo is not raised more than fixed boost pressure with stock blow-off. But, on the other hand, it will become the cause of turbine blow if the blow-off valve is removed. As for a TOMEI blow-off valve, only the boost pressure relief function has eliminated while the turbine protection function is left. Moreover, since we applied a bypass type instead of an air release type, there is no worry for engine stall or the deviation of a fuel control. It is an item indispensable to tuning of 4G63 by any means.
Product Reviews and Ratings
5.0 out of 5.0 based on 2 reviews
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Oct 13, 2016
This was exact fit for the Evo 8/9. It noticeably helped to hold the pressure when needed. Quality part you could trust.
May 13, 2011
Just got it today and I just put this in my sr20 with stock smic great response and noise. easy to put on
|2001 - 2002||Mitsubishi||Lancer|
|2006 - 2006||Mitsubishi||Lancer|
|2001 - 2008||Mitsubishi||Lancer Evolution|
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