GReddy Mitsubishi Evol X Blow-off FV Type (from 2008)

BOV FV Kit floating valve structure

Out of stock

Barcode

0608067875557

SKU

11531211

350.00€ 282.26€

The GReddy BOV FV is a new generation of blow off valve. The unique "Floating Valve" design incorporates a revised adjustable dual spring system, while maintaining the advantages of the previous models' push valve structure and silicone diaphragm control. The improved design makes spring preload setting less dependent on the idle, while providing better response, increased valve travel, more air-flow and added resistance to premature valve lift under all conditions. Also maintained is a slimer CNC outlet with discharge ports to draws surrounding air to amplify the blow-off sound, however this can be replaced with optional re-circulation adapters in various sizes.

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Details

Type-FV Blow-Off ValveType-FV Blow-Off Valve

1. Improved valve control under reving conditions

Traditional BOV - Reving/Idle

Previous models could have a tendency for the valve to open under reving at idle, which could cause a rough idle situation.

Greddy Blow OFF Valve FV - Reving/Idle

The floating valve design prevents unnecessary opening and closing of the blow off valve.Thus the idle is not affected.

2. Quicker response, even during low boost conditions

Traditional BOV - Low Boost/Off Throttle

To prevent the valve from opening at idle/reving, the adjustment spring must be tighten, thus resulting in decrease response for low rpm and low boost levels.

Greddy Blow OFF Valve FV - Low Boost OFF Throttle

With the floating valve design, additional spring preload is not required.This results in a quick responding valve.

Operation Behavior

ON Throttle Situations (BOV FV Closed)

The combination of the new adjustable dual spring system and the intake manifold boost pressure (with large diaphragm to valve area ratio) provide great control to keep the valve shut even in high boost situations.

OFF Throttle Situations (BOV FV Opens)

Since the spring preload does not have to be adjusted for idle, thw lower spring rate allows the charge pipe boost pressure to easily open the valve faster and with more lift, once the intake manifold boost pressure changes to vaccum, when the throttle is closed.

OFF Throttle Situations (BOV FV Closes)

Even with the throttle closed and the vaccum still pulling on the diaphragm, once excess boost has been expelled, the new lower spring closes the valve in preperation for throttle to be re-opened and boost to resume.The result is improved turbo boost response.

Sliding Top Cover

Adjustable Hose Fitting Position - Top Hat Rotation Top Cover

The new sliding top hat design, enables the user to adjust the hose fitting location without having to disassemble the entire blow-off valve unit. Simply remove three coresponding hex bolts and loose other three. Then slide the top hat to a desired position and re-install the hex bolts, to lock it into place.

90 degree fitting adjustment possible with the method described above.Repeat to rotate the top hat and hose fitting as needed.

Blow-off valve FV option partsPption Parts

Blow-off valve FV option parts

A	Mounting Holder	Aluminum	11900455	Gasket, mounting bolts included
B	Hose Attachment	19φ	11900440	For the return pipe mounting (black anodized)
		29φ	11900441	For the return pipe mounting (black anodized)
		32φ	11900442	For the return pipe mounting (black anodized)
		34φ	11900443	For the return pipe mounting (black anodized)

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FAQ(6)

Customer Questions

What is the benefit of the Greddy Blow OFF Valve FV over traditional BOVs in terms of valve control under reving conditions?

The Greddy Blow OFF Valve FV features a floating valve design that prevents unnecessary opening and closing of the valve under reving conditions, ensuring a smooth idle situation.

How does the Greddy Blow OFF Valve FV provide quicker response even during low boost conditions compared to traditional BOVs?

The Greddy Blow OFF Valve FV's floating valve design eliminates the need for additional spring preload, resulting in a quick responding valve even at low boost levels.

What is the operation behavior of the Greddy Blow OFF Valve FV in different throttle situations?

The Greddy Blow OFF Valve FV provides great control to keep the valve shut even in high boost situations during ON throttle scenarios. In OFF throttle situations, the valve opens quickly and closes efficiently for improved turbo boost response.

How does the sliding top cover of the Greddy Blow OFF Valve FV enhance user convenience?

The sliding top cover design allows users to adjust the hose fitting position without disassembling the entire unit, providing easy customization and installation.

What are the available option parts for the Blow-off valve FV?

Option parts for the Blow-off valve FV include Mounting Holder (A) with gasket and mounting bolts, and various Hose Attachments (B) in different sizes for return pipe mounting.

What is the benefit of the Greddy Blow OFF Valve FV over traditional BOVs in terms of valve control under reving conditions?

The Greddy Blow OFF Valve FV features a floating valve design that prevents unnecessary opening and closing of the valve under reving conditions, ensuring a smooth idle situation.

Compatibility