Turbo Boost Leak Testers, Inc is dedicated to making boost leak testers – That’s it! 

We have been producing testers and optimizing the design since 2007 with a few goals in mind - To keep them cost effective, simple and durable.  We also have a new line of Billet Aluminum boost leak testers in every size!

This kit includes:

Heavy Duty Stainless Steel 30 PSI gauge  -  Stainless Steel T-Bolt Clamps  -  A High Quality Silicone Coupler 

Design Specs:

• Durable PVC End Cap, 1/8 inch NPT threaded gauge port & fitting port
• Silicon Coupler - High quality 4 layer
• Boost Gauge - Custom 30 PSI / 1 Bar - Stainless Steel Housing, Glycerin filled
• 30 PSI range will give you the appropriate reading when testing your charge pipes for low, medium or high boost levels.
• Tire Valve Fitting: Universal Tire Schrader Valve (can be tapped for 1/4 inch NPT thread fitting if desired)
• (2) Stainless Steel T-Bolt Clamps

Get your boost back and get Full Performance From Your Turbo!  

This boost leak tester is designed to fit over the inlet flange of your turbo charger and allows you to pressurize the charge system with compressed air while the vehicle is off. 

This is an important tool every turbo car owner needs in their arsenal of tools.  It will keep the turbo healthy by eliminating leaks in the boost path and not allowing it to over speed compensating for a boost leak.  This will eventually lead to bearing wear and shaft play. Boost leak testing is a must if you are tuned or any time you are replacing any components in the intake tract such as charge hoses, intercooler, manifold, vac lines, injectors…etc.  Also a must if you are going to the track and want the peace of mind that the turbo wont over-work or risk blowing any hoses off that are loose!

Importance of the boost gauge?

The boost gauge is absolutely necessary for a safe and proper test!  Not having a gauge readout on a boost leak test is similar to filling air in your car's tire without a gauge.  You just don't know how much air is in the tire and risk a blow out!   
It is critical to ensure that the pressure being put into the system is monitored ih the gauge to maintain safe levels and prevent damage to the engine or to yourself.  For example, if your compressor is unregulated (ex. shop air at 90 PSI) and you dont have a boost gauge there is a risk that you can over-pressurized and something will give.

Benefits of Gauge:

1.     Allows you to apply a safe amount of pressure to prevent injury or damage

2.     read how fast the system holds and bleeds air

3.     Gives a good comparison of compressor outlet air Vs. boost test air while pressurizing.  (lower the difference the better)

Typically the boost target will be lower than what is expected by the tune
Boost onset could be erratic
Slower than normal spool-up
P-codes, Check engine lights – system too rich

What happens to the turbo charger if there is a boost leak??
Any leak will cause the turbo’s wheels to over-spin and result in bearing to wear out eventually causing shaft play!  This happens faster with larger leaks.  This conditions then allows for the turbo’s wheel tips to make physical contact with the turbo housing.  It’s over for your turbo at that point!

1.       Remove the intake hose/pipe off your turbo chargers inlet

2.   Install the boost leak tester onto the turbo chargers inlet and secure with the T-bolt clamps

3.   Pressurize the boost leak tester with an air compressor and a tire inflator tool.   The air compressor should be a minimum of 2 gallon volume.   The larger the compressor, the more capacity you have to fill the engine’s charge pipes.   A bike pump or electric pump will not supply enough air fast enough to fill the system

4.   Caution! - When filling the system, start with a low pressure around 5 PSI.  Recommended to regulate the compressor to a lower pressure and only increase if filling is too slow.   

·         The boost gauge reading indicates how much compressed air is in the charge pipes.

·         The boost gauge allows you to read the bleed rate of charge pipes when you remove the pressure.   It is normal to see pressure loss average of 1 PSI every second.  Faster bleed rate at higher pressures and slower bleed rate at lower pressures

5.       Listen for leaks.   Use soapy spray if necessary to identify smaller leaks.

6.       Fix any leaks points and then retest.  Increase by 5 psi up to the normal operating boost pressure.

7.       Go out and Boost!  Enjoy the restored power from your engine!