Nissan GT-R R35 Twin Turbo Boost Leak Tester ('09-'18) - Billet Aluminum - 3" Intakes

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

Test your GTR twin turbo the correct way and keep the motor running healthy and boost with confidence!

Design for all aftermarket intake using a 3" pipe diameter.   These twin billet caps will be installed inside the 3" silicone adapter right at the turbo inlet or any 3" flexible connection on the intake.  

Pressurizing the system will allow you to run peak boost your motor was tuned for ensure you are putting all the power down without any leaks.   A boost leak will cause the compressor wheels to over-spin to compensate for lost pressure.  Eventually this puts a lot of strain on the turbos and they start to develop shaft play from running hot and poor oiling.  

This boost leak tester kit will include 2 billet aluminum plugs that will slip into the pcvbreather hoses coming off the valve covers.  This is critical to performing the boost leak test correctly!  Otherwise the crankcase will be pressurized with compressed air and this can put load on the camshaft and crank seals.   Plug the PCV hoses and leave the oil cap OFF during testing.   

These billet 3" boost leak testers will work with intakes linked below, and similar: 

• AMS Alpha R35 GTR Carbon Fiber Cold Air Intake 
• AAM Competition GT-R R-Line 3" Intake Kit 
• Agency Power Intake MAF Pipe 
• Agency Power Short Ram Intake 
• Akuma Intake 
• .... and so on

 Design Features & What's Included:  

• (2) 3" Billet aluminum End Caps
• (2) Custom Boost Gauges - Stainless steel shock-proof glycerin-filled.  Range 30 PSI/ 2 Bar
• (2) Tire Valve stems for easy testing
• (2) Stainless Steel T-bolt Clamps with teflon lock-nut
• PCV Block off caps

Lifetime warranty on every component.

Detailed instructions: boost leak tester instructions

Instructions:
1. remove intake pipe and expose the silicone adapter on the turbo inlet, from each side
2. Insert the boost leak tester end caps into the silicone inlets
3. disconnect the PCV line from each side of the valve covers and plug the hose with the provided plugs and zip tie.
4. remove the oil cap to prevent accidental crankcase pressurization
5. Fill the system with a compressor.  Start with low pressure such as 5 PSI.  Listen for leaks, fix leaks and repeat to catch the next leak.  Largest leaks are found first.
* good practice to disconnect the diverter valve "blow off valves" return lines as shown in the pic.   This will test the diaphragm of the diverter valve.  It should not leak air on the return side when boost leak testing.