Lancer Register Forum banner

1 - 2 of 2 Posts

Premium Member
20,177 Posts
Discussion Starter · #1 · (Edited)
Forge dump valve in good working order. Type RS Valve - Recirculating, adjustable.
According to the Forge Motorsport site it fits Evo's 4 to 10

"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 acheived by fitting the RS valve which has the greater internal mass air flow specification utilising an amazing 50mm (2") bore. For fine tuning there is a variable spring preload incorporated and a ratchet type top adjuster that will allow for the positive and precise adjustment that your driving style demands.

To ease installation. 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 available from Forge"

Please contact on here or email [email protected]
Item located in Leeds, West Yorkshire.

1 - 2 of 2 Posts