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The Ultimate Guide to External Wastegates

Turbosmart External Wastegates - GENV Range

What is an External Wastegate?

An external wastegate is a device that helps control boost pressure in a turbocharged engine. Regulating the exhaust gases that flow through the turbocharger limits the maximum amount of boost that can be produced. This helps prevent engine damage from too much boost pressure and keeps the engine running at optimal levels.

External wastegates typically consist of an inlet and outlet port, valve, and pressure actuator. The actuator is connected to the wastegate valve and is responsible for opening and closing it. When the engine is running, exhaust gases flow through the wastegate and into the turbine, spinning it to create power. The actuator opens and closes the valve to regulate how much exhaust gas flows through, and, therefore, how much boost is produced.

External wastegates are a vital part of any turbocharged engine and help ensure it runs at peak performance levels. Without a wastegate, an engine could be damaged by too much boost pressure, or may not run as efficiently as possible. If you’re considering adding a turbocharger to your engine, be sure to include an external wastegate in your plans.

How does an External Wastegate Work?

An external wastegate is a device that helps regulate the amount of exhaust gas flow in an engine. It does this by diverting some of the exhaust gas from the engine’s main exhaust port. This diversion allows the engine to run at higher efficiency and prevents premature wear on engine components.

External wastegates are most commonly found on turbocharged engines. That’s because they provide a way to control boost pressure, which is the amount of air pressure that’s forced into the engine by the turbocharger. By controlling boost pressure, an external wastegate can help prevent engine damage caused by too much pressure.

External wastegates are also used on naturally aspirated engines. In this case, they’re used to control exhaust gas temperatures. By diverting some of the exhaust gas away from the engine, an external wastegate can help keep the engine cooler and prevent damage caused by excessive heat.

When is an External Wastegate needed?

An external wastegate is usually needed when the internal wastegate in the turbocharger cannot effectively control boost pressure. This can happen for a number of reasons, including a faulty or damaged internal wastegate, an incorrect wastegate spring size, or simply because the boost pressure is too high for the internal wastegate to handle. Whatever the reason, an external wastegate can help to regulate boost pressure and prevent the turbocharger from over boosting.

External wastegates can also be used to fine-tune boost pressure levels. By adjusting the position of the external wastegate’s dump tube, it’s possible to change how much exhaust gas is diverted away from the turbine wheel. This can be used to increase or decrease boost pressure as needed, allowing for more precise control over the turbocharger’s output.

External wastegates are not always necessary, but they can be a valuable addition to any turbocharged setup. If you’re having boost control issues or you want to be able to fine-tune your turbocharger’s output, an external wastegate may be the answer.

Things to consider when choosing an External Wastegate

External wastegates are available in a variety of sizes and designs. They can be manual or electronic, and a switch or a computer can control them. Several aftermarket products allow you to upgrade or replace your existing wastegate.

If you’re looking for an upgrade or replacement for your existing wastegate, there are a few things to keep in mind. First, you’ll need to decide what size and type of wastegate you need. Then, you’ll need to choose a model compatible with your engine.

Once you’ve chosen the right wastegate for your application, you’ll need to install it. Installing an external wastegate is usually a relatively straightforward process, but there are a few things to keep in mind. First, you’ll need to ensure that the wastegate is mounted correctly.

Second, you’ll need to connect the wastegate to the engine’s exhaust system. This connection will typically be made with a coupling or clamp. Finally, you’ll need to route the wastegate’s discharge tube so that it doesn’t come into contact with any moving engine parts.

Once your external wastegate is installed, you’ll need to adjust it to provide the correct amount of boost pressure for your application. This adjustment is typically made with a knob or dial on the wastegate.

Once you have your external wastegate installed and adjusted, you’ll be able to enjoy the benefits it provides.

How are Turbosmart External Wastegates made?

Turbosmart wastegates are made with high-quality materials and precision engineering to ensure reliable performance and durability. The housings are made from cast aluminium, while the internal components are made from CNC-machined billet aluminium. The diaphragms are made from high-strength silicone, and the springs are made from stainless steel. These materials work together to create a wastegate that can withstand extreme temperatures and pressures.

What you should never do with your External Wastegate

There are a few things you should never do with your external wastegate. 

1. Do not forget to properly vent the exhaust gases. If you don’t, the pressure will build up and could cause the wastegate to blow out. 

2. Never use an improper size or shape of tubing for your exhaust gases. This can create backpressure and cause the wastegate to malfunction. Finally, never block off the wastegate completely. Doing so will prevent it from doing its job and could cause severe engine damage.

Suppose you’re unsure how to properly install or use your external wastegate, consult a professional mechanic or tuner. They’ll be able to help you ensure that everything is set up correctly and safely.

How expensive are External Wastegates?

Turbocharger external watergates can be pretty expensive, depending on the make and model of the turbocharger. Some aftermarket options can cost upwards of $1,000. However, there are also some more affordable options available for less than $500. It depends on your budget and what you are looking for in a turbocharger external watergate. If you are looking for the best possible performance, then you will want to invest in a more expensive option. However, if you are looking for a basic watergate to help keep your turbocharger cool, you can get away with a less expensive option. Either way, do your research before purchasing a turbocharger external watergate to ensure that you are getting the best possible product for your money.

Some things to consider before purchasing an External Wastegate

There are a few different types of external wastegates on the market, so which one is best for your application?

When choosing an external wastegate, there are a few factors to consider:

1. Application: What type of vehicle are you using it on? Is it a street car or a race car? How much power are you making?

2. Mounting: Where do you want to mount the wastegate? Do you have room for a large, top-mount unit, or do you need a smaller, side-mount unit?

3. Budget: How much money do you want to spend on an external wastegate?

4. Preferences: What features are you looking for in an external wastegate?

Once you’ve considered all of these factors, you should have a good idea of what type of external wastegate is best for your application.

External wastegates are often more expensive than internal ones but offer greater flexibility and control. An external wastegate is worth considering if you’re serious about getting the most out of your turbocharged engine.

Why Choose a Turbosmart Wastegate?

When it comes to high-performance engines, there’s nothing quite like a turbocharged motor. The increased power and efficiency turbos provide make them popular among race car builders and engine tuners. But to get the most out of a turbocharged engine, it’s essential to have quality components like Turbosmart wastegates.

Turbosmart wastegates are designed to efficiently control the flow of exhaust gases from the turbocharger. This helps ensure that the turbocharger is operating at peak efficiency, providing more power and better fuel economy. In addition, Turbosmart wastegates can withstand higher temperatures and pressures than other brands, making them ideal for high-performance applications.

If you’re looking for a quality wastegate that can provide optimal performance for your turbocharged engine, look no further than Turbosmart. With a wide variety of models to choose from, there’s sure to be a Turbosmart wastegate that’s perfect for your needs. So why settle for anything less? Make the switch to Turbosmart and experience the difference!

Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.

Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.

Please contact us here and fill out a quick form so that our team can efficiently help you!

Custom setup and need advice?

Try our Product Advisor! This tool is designed to help you choose the right product for your project & help you choose the right Wastegate, Blow off Valve and fuel Pressure Regulator.

Find products to suit your car

Contact Turbosmart to see if we have products to suit your car on the way or other solutions to help! If you have a new car we don't cover, you can also request a new product.
Nearly 30 years ago, I embarked on this incredible journey of founding Turbosmart, and as we step into 2024, I've never been more proud of the Turbosmart team. We are on the verge of our most exciting chapter yet, as we unveil a monumental achievement—our new line of cutting-edge Turbochargers. Turbosmart is more than just a business; it's a community of enthusiasts dedicated to constant innovation in our products, support, and service. Thank you for being so supportive, and here's to another year of innovation and achievement with Turbosmart! #Engineered to Win!

Turbosmart External Wastegate Series

Engineered to Win!

The Turbosmart external wastegate range is a multi-award winning product used and trusted by enthusiasts, mechanics and top tier engineers worldwide.

Turbosmart Electronic External Wastegates

About Turbosmart

From our humble beginnings to establishing ourselves as a global brand, Turbosmart is well on track to lead the future in turbo technology.

Our engineers build and track-test all products in-house. Therefore, we ensure we continuously produce the highest-quality, highest-performance Turbochargers, blow-off valves, wastegates, boost controllers, fuel pressure regulators, oil pressure regulators and more. Furthermore, our products are designed and built for track and street applications.

2x SEMA Award Winning StraightGate50

Engineered to Win!

The StraightGate50 eSG50 from Turbosmart is a 50mm (1.97in) butterfly valve style external wastegate for turbocharged engines.

External Wastegate Springs

Engineered to Win!

We carry everything to ensure that your Turbosmart External Wastegate products are always running at peak performance.  Don’t settle for non-genuine parts. Make sure your Turbosmart.

WG60 SPRING & DIAPHRAGM

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Shitbox Rally Summer 2023

They're doing what?

Turbosmart Founder & CEO Nic Cooper and Group Sales & Marketing Manager Chris Milne are setting off on the 2023 Rockhampton to Hobart Shitbox Rally! Starting in Rockhampton QLD on March 18th and aiming to reach Hobart Tasmania by March 24th.
 
The Shitbox Rally is a fundraising adventure where the participants are required to raise money for Cancer, then find a shitbox valued at no more than 1500 Australian Dollars to tackle the 3500km (2100 Miles) across outback Australia!
Shitbox Rally Map
 
Shitbox Rally is not a race, it’s a challenge to drive cars worth $1,500 or less across Australia via some of its toughest roads to raise money for Cancer research. This remarkable event has raised more than $30 million since the first rally in 2010.
To participate, each team must raise a minimum of $5,000 – Nic and Chris are hoping to smash that & need your help!

The Impact, Outcomes & Charity

Cancer Council Logo
Shitbox Rally is a fundraising event for cancer research with funds going to Cancer Council.

Cancer Council is one of the largest non-government funders of cancer research in Australia. We conduct and fund research studies across all cancers and all stages of the cancer journey.

Thanks to the community funds raised such as Shitbox Rally we can fund world-class research that reduces the impact of cancer on everyone.

More than $30 million over the past 12 years has been raised by Box Rallies to date, supporting ground-breaking projects such as:

  • A research study to develop a vaccine that protects against lymphoma cancers.
  • A research trial to standardise international guidelines on melanoma removal.
  • A research grant to revolutionise the treatment of pancreatic cancer.

These projects wouldn’t be possible without your support.

Shitbox Rally Infographic

What shitbox do you think they should get?

 The funds raised do not go toward the vehicle – that is on Nic & Chris to purchase and arrange separately to the fundraising. The car needs to be valued at less than $1500 while being able to manage the 3500 km course… And then on the final day, be raffled off to the highest bidder where the funds will also be donated to Cancer Research!
"Cancer has touched my friends and family's life time and time again & while in the heat of it all, it feels like there is little you can do - This however, is something you can do. Something I can do! I can't wait & anyone who knows me will know driving a complete POS across Australia is right up my alley. I can't wait to get this goal smashed & find the most embarrassing $1500 piece of Australian Motoring history, that will barely get us there. Awesome!"
Chris Milne Group Sales & Marketing Manager
Chris Milne
Turbosmart Group Sales & Marketing Manager

From the Entire Turbomsart Team, Best of Luck to Nic & Chris down the Shitbox Highway

Feature ShitBox Rally

Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.

Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.

Please contact us here and fill out a quick form so that our team can efficiently help you!

Custom setup and need advice?

Try our Product Advisor! This tool is designed to help you choose the right product for your project & help you choose the right Wastegate, Blow off Valve and fuel Pressure Regulator.

Find products to suit your car

Contact Turbosmart to see if we have products to suit your car on the way or other solutions to help! If you have a new car we don't cover, you can also request a new product.

Show Your Support

The story of Shitbox Rally director, James Freeman

About Turbosmart

From our humble beginnings to establishing ourselves as a global brand, Turbosmart is well on track to lead the future in turbo technology.

Our engineers build and track-test all products in-house. Therefore, we ensure we continuously produce the highest-quality, highest-performance Turbochargers, blow-off valves, wastegates, boost controllers, fuel pressure regulators, oil pressure regulators and more. Furthermore, our products are designed and built for track and street applications.

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Turbosmart Ultimate Street Car 2022

Turbosmart Interview with Andrew Hawkings​

Ultimate Street Car 2022 - Audi R8 Twin Turbo

What is the Ultimate Street Car Challenge?

The Turbosmart Ultimate Street Car is our quest to find the complete street car in the country; by actual street car, we mean looks, and performance, including handling, braking and engineering. I’ve always loved the concept of SCOTY back in the Autosalon days. My vision was to create a competition where a competitor could throw their keys to a judge and engineer and have it compete against the best cars in Australia.

Ultimate Street Car 2022 - R35 GTR

Why was the event created?

The Ultimate Street Car started as an award given to the quickest car to drive to coota under its power to and from the event without breaking. JEM won it the first year and then Precision racing won the following year and the Turbosmart Ultimate Street Car came into fruition shortly after that.

4GDUP EVO

Why did Motive choose Turbosmart as the naming rights sponsor?

I wanted to work with a company that produces high-quality products with engineers to judge cars. We needed a company with a good reputation for quality engineering to fairly judge the competitor cars.

Ultimate Street Car 2022 - Audi R8 Twin Turbo

Who won the event?

George Tsitos with his 1400HP Twin Turbo Audi R8 built by Precision Racing has won the event 4 years in a row.

V10 TT Lamborghini

What is the most exciting aspect of the event?

For me, the most exciting part is showcasing the quality and engineering creativity workshops and owners have done to their cars. But on the day, driving them is a huge highlight being able to spend time with the owners and appreciating what they have built. The interaction driving with the owner in the passenger seat watching someone else enjoying their pride and joy being driven to the limits.

Ultimate Street Car 2022 -1000hp Civic

Who can enter?

For any road-registered car that meets our drag battle rules, you need to apply to enter and the competitors are chosen via selection e.g. dyno figures, quarter mile times or lap times.

Ultimate Street Car 2022 - 4GDUP EVO

Do you prefer JDM or Euro?

This is a tough one… A 90s car excites me with 800hp, but a late model Audi R8 would need 1400hp to get the same excitement! In late model cars, I tend to point out the quirks but in a 90s car, I tend to defend the quirks.

Ultimate Street Car 2022 - R35 GTR

What does he have in store for next year's event?

We will most likely introduce late and Early modern classes to keep it fair by comparing a 1990 R32 GTR to a 2022 Lamborghini Huracan. We are always finessing the formula to create the best event possible.

Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.

Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.

Please contact us here and fill out a quick form so that our team can efficiently help you!

Custom setup and need advice?

Try our Product Advisor! This tool is designed to help you choose the right product for your project & help you choose the right Wastegate, Blow off Valve and fuel Pressure Regulator.

Find products to suit your car

Contact Turbosmart to see if we have products to suit your car on the way or other solutions to help! If you have a new car we don't cover, you can also request a new product.

Turbosmart NEWS

Upcoming Events

Follow this page for all upcoming events near you!

About Turbosmart

From our humble beginnings to establishing ourselves as a global brand, Turbosmart is well on track to lead the future in turbo technology.

Our engineers build and track-test all products in-house. Therefore, we ensure we continuously produce the highest-quality, highest-performance Turbochargers, blow-off valves, wastegates, boost controllers, fuel pressure regulators, oil pressure regulators and more. Furthermore, our products are designed and built for track and street applications.

Award-Winning Electronic Wastegates

Engineered to Win!

For more information about the Electronic Wastegate Range, Learn More Here!

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3 Quick Steps to Adjust a Blow Off Valve?

Video: How to Adjust A BOV

Why Would Anyone Want to Adjust Their BOV?

If you have ever wondered why someone would go through the trouble of adjusting a blow off valve, wonder no more! There are several reasons someone might want to adjust their BOV, and we will explore a few here.

One reason to adjust a BOV is to change the point at which it opens. Depending on how your BOV is adjusted, it can open earlier or later in the rev range. This can be beneficial if your car struggles to make power at high RPMs, as opening the BOV earlier can help relieve some pressure build-ups.

Another reason to adjust a BOV is to change the sound it makes. Some people like the loud “whoosh” sound that a BOV makes when it opens, while others find it highly annoying. Adjusting the BOV can help you find a happy medium between the extremes.

Finally, adjusting a BOV can also help with reliability. If your BOV is set too low, it can cause your engine to stall when you come off the throttle. Conversely, if it is set too high, it can cause your car to lurch forward when you get back on the gas. Adjusting the BOV to find the perfect setting can help keep your car running smoothly and prevent unwanted surprises.

So there you have it! These are just a few reasons someone might want to adjust their BOV. Whether you’re looking to improve performance, change the sound, or ensure reliability, adjusting your BOV is a great way to do it.

Before You Adjust A Blow Off Valve

If you have ever wondered how to fine-tune the performance of your valve, check out the video above. Each Blow-off Valve (BOV) or Bypass Valve (BPV) needs to be adjusted to suit the vehicle it is mounted.

Vee Ports, Supersonics and Dual Ports

The aim of the adjustment on Vee Ports, Supersonics and Dual Ports is to make sure that the piston is hard closed at idle and that the piston closes fast enough to minimise backfiring and not stall the engine.

Plumb Back

Equipped with a spring, Plumb Back BOVs are designed to keep the piston open at engine idle. Hence, the cap can be left in the middle position.

Adjusting BOV

How to adjust a BOV?

  1. To Adjust the BOV, rotate the cap, this increases the spring force on the piston,
  2. Rotate the cap clockwise in the direction of hard as marked on the top of the lid.
  3. To decrease the spring force on the piston. Rotate the cap anti-clockwise in the direction of soft as marked on the top of the lid.
How to adjust a blow-off valve

Quick and Easy Steps When Adjusting a BOV or BPV

  1. Start with the BOV cap at the top soft position. Note: The edge of the cap should completely cover the indicator O-Ring.
  2. With the engine at idle, the exhaust port should be closed off by the piston, and therefore the piston should be hard against the seat and not floating or moving.
  3. Free rev the engine and back off quickly. However, the engine should return to average idle speed if the engine drops below idle or stalls. Go ahead and Increase the spring tension by one turn.
  4. Repeat this process until the engine free revs and returns to average idle speed.
  5. Test drive the car and ensure that the engine has minimal backfiring and no stalling when decelerating or changing gears. If you notice backfiring is excessive or stalling, check all connections made during the installation. Otherwise, increase the spring tension.

TECH TIP: BOV TROUBLESHOOTING

If you have installed a vent-to-atmosphere BOV and your engine has started to dip below normal idle and stalling, follow these steps:

BOV Troubleshooting Steps

  1. Firstly, check that the BOV is closed at idle if the BOV is not completed at idle. There’s a good chance the spring tension may need to be increased, or the BOV might need a heavy-duty spring.
  2. Next, check the vacuum hose for splits, cracks, loose connection, kinking or any obstruction. It would be best to replace the old or tired hose’s, and it is also essential to know these hoses may collapse under a vacuum causing an obstruction.
  3. Lastly, with the engine running, remove the vacuum/pressure hose from the nipple in the cap of the BOV. You should hear a loud hissing sound. The engine should idle poorly. Double-check by covering the end of the hose with your finger. If this does not occur, the hose could be blocked or crimped. Thoroughly check the hose and replace it if necessary.
BOV Troubleshooting

If the stalling dipping idle is still occurring follow these steps:

  1. First, ensure that the vacuum/pressure source is not shared and that the vacuum source is directly from the inlet manifold.
  2. Next, check the seal between the adapter and the BOV – ensure that there is no gap between the BOV base and the weld flange.
  3. Lastly, check the join between the adapter and the intercooler pipe for leaking.
BOV Troubleshooting

Here is a handy self-help guide to helping you with your Turbosmart install and answers to some of the most frequently asked questions we get here. Turbosmart recommends that you get your products fitted and tuned by a qualified technician. If you choose to install the product yourself, ensure you have all the necessary tools and technical knowledge to perform this task.

Thank you for picking up the latest Turbosmart catalogue. As we look back on 25 fantastic years of innovation and growth, we continue to look towards the future as we release some revolutionary new products that will cement our reputation as innovators and market leaders.

Please contact us here and fill out a quick form so that our team can efficiently help you!

Custom setup and need advice?

Try our Product Advisor! This tool is designed to help you choose the right product for your project & help you choose the right Wastegate, Blow off Valve and fuel Pressure Regulator.

Find products to suit your car

Contact Turbosmart to see if we have products to suit your car on the way or other solutions to help! If you have a new car we don't cover, you can also request a new product.
Nearly 30 years ago, I embarked on this incredible journey of founding Turbosmart, and as we step into 2024, I've never been more proud of the Turbosmart team. We are on the verge of our most exciting chapter yet, as we unveil a monumental achievement—our new line of cutting-edge Turbochargers. Turbosmart is more than just a business; it's a community of enthusiasts dedicated to constant innovation in our products, support, and service. Thank you for being so supportive, and here's to another year of innovation and achievement with Turbosmart! #Engineered to Win!

ALL NEW ProPort AVAILABLE NOW!

Engineered to Win!

ProPort by Turbosmart is a 54mm (2.13in) Blow Off Valve with a tiny footprint and massive flow. The ProPort flows 420 cfm, which is enough for 3500 HP and is in a league of its own, standing 30mm (1.2in) lower than PowerPort while flowing over 25% more than the Market leading 50mm RacePort.

Turbosmart Blow off Valve Range

Engineered to Win!

Turbosmart has manufactured the Blow-off Valve (BOV) Range with a focus on performance and reliability.

About Turbosmart

From our humble beginnings to establishing ourselves as a global brand, Turbosmart is well on track to lead the future in turbo technology.

Our engineers build and track-test all products in-house. Therefore, we ensure we continuously produce the highest-quality, highest-performance Turbochargers, blow-off valves, wastegates, boost controllers, fuel pressure regulators, oil pressure regulators and more. Furthermore, our products are designed and built for track and street applications.

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