Blow Off Valve 50 mm Piston-type with V-Band

Nuke Performance Blow Off Valve 50 mm with V-Band Connection is an atmospheric piston valve type with the highest flow capacity available.

When it is necessary to be able to rely on the installation and function. The Nuke Performance Blow Off Valves is available with either a 3" V-Band connection, or a 50mm hose connection. For serious boost, and serious power.

 Lightweight Universal Blow Off Valve
 3" V-Band connection, including clamp and flange
 0.35 - 0.50 BAR setup spring is preinstalled
 50mm piston valve design
 1/4" reference vacuum port on top
 Made in Sweden

It's ready for some serious boost, and some serious power. Either installed in a single setup or in a dual setup when one isn´t enough. It´s designed with an oversized 50 mm valve, we believe this is the largest valve available with the highest flow capacity for an atmospheric blow-off valve.

 Easy to connect to your intake with either the 50mm (2") hose connection or with V-Band, available with both options
The Nuke Performance Blow Off Valves is available with either a V-band connection, where both the needed lightweight aluminum clamp and the aluminum weldable flange are included. If you prefer, the hose connection version suits a common 2" (50mm) silicon hose, easy to install without the need for welding and custom manufacturing.

 The Nuke Performance Blow Off Valve V-Band Connection is delivered with both clamp and flange for easy and trouble-free assembly
The blow off valve from Nuke Performance is delivered including an aluminum weld flange for easy attachment to 2.5 - 3" aluminum piping. It is also delivered with a matching lightweight and secure V-Bands clamp with stainless steel bolt and inserts. Sealed with an O-ring, this installation is easy, trouble-free, and with long durability. If needed, we also have the weld-on flange available in a stainless steel version that is used for stainless steel, or steel intake tubes.
Stainless steel weld flange Part # : 910-02-103

 Choose the right setup spring for your engine setup
The Nuke Performance Blow Off Valve 50 mm V-Band comes with a setup spring preinstalled, the 0.35-0.50 BAR spring is the most common and popular spring and used by most of our customers.

0.50 - 0.75 bar (7.25 - 10.9 PSI) : Additional BLACK SPRING (Part #: 900-01-104)
0.35 - 0.50 bar (5.07 - 7.25 PSI) : Premounted BLUE SPRING (Part #: 900-01-103)
0.00 - 0.35 bar (0.00 - 5.07 PSI) : Additional WHITE SPRING (Part #: 900-01-102)

To find out which spring suits your build the best, you measure engine vacuum at idle and with the engine at operating temperature. It is easy to swap the setup spring when needed, you only need a 5mm hex key.

 Delivered with a 6mm pneufit quick connect fitting
On top of the blow off valve, it's delivered with an over-dimensioned 1/4" pneufit quick connect fitting for a 6mm hard tube. Used to connect the blow off valve to the inlet manifold vacuum. Additional tube and barb fittings are available as accessories.
1/4 BSPP Barb fitting to 4mm hose Part #: 300-10-113
1/4 BSPP Barb fitting to 6mm hose Part #: 300-10-111
1/4 BSPP Barb fitting to 8mm hose Part #: 300-10-110
6mm Push in vacuum tubing - 2m (6ft) Part #: 600-10-101

 What is the purpose of a blow-off valve, and how does it work?
A blow off valve is actually a Pressure release valve that releases turbo pressure / boost when the throttle plate is closed. While the turbo is still spinning and creating pressure, a wave of pressure will travel back to the turbocharger when the throttle closes, this will result in that the compressor wheel stalling the “compressor surge” and slowing it down very quickly.

 A blow off valve mounts in between the turbo and the throttle and is connected to the vacuum
 A well-dimensioned blow off valve increases the turbo´s lifespan and is necessary for its functionality

This is hard on the bearings and decreases the turbo´s lifespan, it will also take a longer time for the turbo compressor to spin up the next time the throttle opens and the turbo will not be able to deliver maximal boost as quickly as possible. For more information about our blow off valves, view our FAQ about "how does a blow off valve work?".

 Developed upon high demands from worldwide motorsports
Designed and manufactured in Sweden, to handle extreme amounts of power with the same hallmark as all of our performance products. The body and all internal components are CNC-machined from 6082 aluminum alloy, anodized for a long-lasting, corrosion-free appearance. Always ready to give you maximum function and with extremely high quality, the valve performs even in extreme and demanding conditions.

 Blow Off Valve 50 mm Hose Connection Specifications
For more information about specifications, contact us directly.

 Spring pressure chart, setup springs for your blow off valve
Measure engine vacuum at idle and with the engine at operating temperature.

 Nuke Performance Blow Off Valve 50 mm V-Band Connection Includes:
1 x Blow off valve 50 mm V-Band
1 x Aluminum V-Band flange
1 x V-Band clamp
1 x O-ring for V-Band connection
1 x Pneufit 1/4 BSPP to 6mm hard tube push in

 Download Product Sheet (.pdf)
 Accessories / Spare Parts
 FAQ : How does a Blow Off Valve work?

Technical information :
• CNC manufactured from aluminium alloy 6082.
• The valve seal utilizes a Viton O-ring that is glued in place to prevent the possibility of sticking to the seat and pulling out.
• V-Band clamp and welding flange included.
• 1/4 BSPP thread reference port.
• Delivered with 1x 1/4 BSPP quick connect pneufit fitting for 6mm tubing.
• Delivered with "blue spring" : 0,35 - 0,50 bar / 5,07 - 7,25 psi.
• Springs are available in three different setups : White, Blue , Black.
• Laserengraved.