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GReddy BLOW-OFF VALVE FV2

Upgraded with New Features and Design!

 

For English  → GReddy BLOW-OFF VALVE FV2 (EN)

Product features

“GReddy BLOW OFF VALVE FV2” inherits the floating valve structure that was popular in the previous model, while improving the more sophisticated design, maintainability, and reliability.

A hand spinner that enables the preload adjustment of the spring without tools is adopted, and the direction of taking out the hose union of the top cover can also be adjusted 360 ° without tools.

The mounting flange and opening have the same dimensions as the GReddy blow-off valve TYPE-RS, RZ, and FV, and can be replaced from the conventional model.

BLOW OFF VALVE FV2

⚫︎ The “GReddy BLOW OFF VALVE FV2” inherits the popular floating valve structure from the previous model while improving its design, maintainability, and reliability.

⚫︎ It adopts a hand spinner for tool-free spring preload adjustment, and the hose union direction on the top cover can be adjusted 360° without tools.

⚫︎ The mounting flange and release port positions are the same dimensions as the GReddy blow-off valve TYPE-RS, RZ, and FV, allowing replacement from previous models.

⚫︎ Available in chrome and black colors.


* The ZC33S, ZN6/ZC6, and JB64W model-specific kits have a specialized blow-off valve body structure, so replacement from previous models is not possible.
* For BFV-512 and BFV-614, when replacing from previous models to open configuration, modification is necessary as the release port may interfere with the adapter. The return configuration is not affected.

GReddy Blow-Off Valve FV2 (Body Only)

ColorTRUST CODEJAN CODEPrice (Tax Included)Price (Tax Excluded)
Chrome115016724991995779049¥32,450¥29,500
Black 11501673 4991995779063¥32,450¥29,500

 

Specifications

・ Top Cover: CNC machined aluminum with 360° rotation function
・ Spring Adjustment: CNC machined aluminum hand spinner
・ Main Body: Aluminum die-cast
・ Dual Valve Spring Valve: 40φ CNC machined aluminum with hard anodizing
・ Split structure with support spring

 

Product Components

・ Blow-off valve body
・ 4.5φ silicone tube
・ Gasket Three-way 4-4-4φ
・ Three-way 6-4-6φ

 

Click here to download the instruction manual

handling instructions

 

Blow-Off Valve FV2 Optional Parts

PartSizeTRUST CODEPrice (Tax Included)Price (Tax Excluded)

A Mounting Holder
・ Aluminum
・ Includes gasket/mounting bolts.
・ Compatible with GReddy Blow-Off Valve Type RS, RZ, FV

11900455 ¥4,620 YEN 4,200

B Hose Attachment
・ For return piping installation (Black anodized)
・ Compatible with GReddy Blow-Off Valve Type RS, RZ, FV

19φ 11900440 ¥1,925 YEN 1,750
29φ11900441¥1,925¥1,750
32φ11900442¥1,925¥1,750
34φ11900443¥1,925¥1,750

C Gasket

11900456 ¥440 YEN 400

D Release Port

11900449 ¥3,850 YEN 3,500

 

Blow-Off Valve FV2 Black Optional Parts

Silicone Tube Black

SizeTRUST CODEJAN CODEPrice (Tax Included)Price (Tax Excluded)

4.5φ 1m

12400275 4991995240204 ¥990 ¥900

6φ 1m

12400277 4991995240228 ¥1,210 ¥1,100

4.5φ 10m

12400276 4991995240211 YEN 8,000 YEN 8,800

6φ 10m

12400278 4991995240235 ¥10,780 YEN 9,800

 

Product Overview

Prevent idling disorder to be caused by Blow Off

The floating valve mechanism allows for quick valve response without the need for unnecessary preload on the spring.

Quick response at low boost

Prevent the loss time of opening and shutting the valve by the floating valve structure.

Adoption of Floating Valve Structure

This product adopts floating valve design that diaphragm and valve are moving independently, and it insures quicker valve response than previous product and stable blow-off action through all pressure area.

FV_comparison

New Rotatable Top Cover Adopted

The top cover, now adjustable 360°, eliminates the need to disassemble when changing the hose union direction, significantly improving workability compared to the previous model.

Preload Adjustment with Hand Spinner

The easy-to-rotate hand spinner allows for tool-free preload adjustment within approximately 5 rotations.

HOSE UNIONS

The hose union included with this product is a specialized part with adjusted length due to its internal structure.

Using generic hose unions other than those provided may cause issues such as top cover rotation problems, pressure leaks, or thread damage due to contact with internal parts.

* Please refer to the instruction manual for more details.

BLOW OFF VALVE FV operation

[ Throttle ON ]

Dual valve spring, the combination of the new adjustable valve spring system and the intake manifold pressure provide great control to keep the valve shut even in high boost situations.

[When Accelerator is OFF]

Valve preload is removed when surge tank pressure becomes vacuum and diaphragm and dual spring is pulled. The lower spring rate allows the charge-pipe boost pressure to easily open the valve faster, blow-offs quicker.

[ Throttle OFF (after blow off)]

Even the intake manifold pressure is vacuum and diaphragm is pulled up, once remained pressure is expelled, the new lower spring closes the valve in preparation for throttle ON to be re-opened and boost to resume.

 

 

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