Forge Type RS Recirculating Bypass Valve | Mitsubishi Evo 4-9 / X (FMDVRSR)

Description

EvoMotorParts offers Forge Type RS Recirculating Bypass Valve for Evo 4-9 / X for Mitsubishi Evo applications applications. This performance upgrade supports fitment-focused performance and dependable installation confidence and is a smart choice for drivers who want dependable performance component performance.

Use the specifications and application details below to verify this components part is the right fit for your Mitsubishi Evo applications build.

Forge Motorsport Type RS Valve – Recirculating
The Forge RS valve has been specifically designed and engineered to offer extreme flow rate capability where other valves are just not up to it. Often when engines have been tuned by installing larger turbos or even software upgrades improved turbo response can be achieved by fitting the RS valve which has the greater internal mass air flow specification utilizing an amazing 50mm (2″) bore. For fine tuning there is a variable spring pre-load incorporated and a ratchet type top adjuster that will allow for the positive and precise adjustment that your driving style demands.
To ease installation, the Type-RS valve incorporates a 360 degree adjustable vacuum hose connector. With a choice of inlet and outlet connections the RS valve can be matched to your engine perfectly. This valve incorporates a unique conical, progressive rate spring that can allow for the retention of boost pressure from 7 to 22 PSI depending on the individual user’s application and level of adjustment. If you are intending on running over 22psi then you will need the uprated spring, which is included in the kit.
This unique spring design will also allow for unrestricted piston travel and flow volume regardless of the amount of pre-load adjustment added to the spring. Other manufacturers valves using cylindrical springs with adjustable pre-load often experience restricted piston travel and flow volume within the normal range of valve adjustment.
Features
Variable spring pre-load incorporated
360 degree adjustable vacuum hose connector
Adjustable from 7 to 22psi
Can be modified to support over 22psi with included uprated spring
Applications
1996-2003 Mitsubishi Evo 4-9
2008-2015 Mitsubishi Evo X
What’s In The Box?
1 x FMDVRSR Valve
1 x Uprated RS Spring
1 x Instructions
1 x Forge Sticker
Warranty
Manufacturer Standard Warranty
Resources
Assembly Instructions
Adjustment Instructions