1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

Boost leak test how to with boostpro.net tester

Posted by gas_man, Feb 21, 2005

Please Support Southbay Fuel Injectors
Please Support VR-Speed Factory
  1. gas_man

    gas_man Proven Member

    Joined Jun 16, 2004
    Indiana, Pennsylvania
    My reasons for doing this write-up are two fold.
    My first reason is to review the www.boostpro.net boost leak tester and then explain how to use it.

    Boost Pro: boost leak tester w/gauge review:


    When ordering the tester you are giving an option for models with a guage or without. The unguaged model is $12 whereas the gauged model is $17. I choose the gauged model because it is so much more convienent not having to run around to look at my A pillar or having some in the car watching the gauge. Shipping was fast and the tester was well packaged. The tester is 3 inches in diamiter and about 1/2 thick made of sturdy black plastic. The schrader valve as well as the gauge are pre installed so that the tester is ready to go right out of the box. This is the only boost leak tester that I have seen for sale that is this proffesional looking. The price of both models is comprable to what one would pay to make their own tester out of plumbing peices but the look, feel and quality of the boost pro unit is top notch.

    How to: Boost leak test using the Boost Pro: Boost leak tester: (note: this test was done on a 1g with a T04B running Maft translator in blow through mode.)
    Warning: Only pressurize your intake to the amount of boost you run/ plan to run. If you over pressurize your intake tract damage may occur.

    Tools Needed:
    Screwdriver: Phillips or Flat head depending upon your hose clamps
    Pliers: Bov return line clamp
    Socket wrench
    Socket set
    Air compressor/Gas station

    Others peices needed:
    Oty. 1: Coupler to connect the boost leak tester to the turbo inlet. The Boost Pro unit is 3in in diameter so depending on your turbo size you will need a 3 x ( X ) coupler. If you're running a TO4B or TO4E you just need a 3 x 3 coupler. You will need to measure your turbo inlet to figure out what size coupler you will need.
    Qty. 2 : Hose clamps/ T-bolt clamps. You will need 2 hose/ t-bolt clamps. One clamp needs to be at least 3in in diameter and the other depends on your turbo inlet size.

    Step 1. Remove Intake/Air Box.
    A. You will need to remove your stock air box and MAF, The air box is bolted in with 3 10mm bolts. Unplug your MAF and loosen the hose clamp on the intake pipe holding the MAF in place. Now the air box and MAF can be removed.
    B. Remove the BOV return hose and PCV valve hose.
    C. Loosen the hose clamp that holds the intake pipe to the turbo and remove the intake pipe.


    Step 2. Install coupler & hose clamps on the Boost Pro: boost leak tester.
    A. It may take a small amount of elbow grease to get the coupler to fit over the tester
    B. Once you have the coupler where you want it put a hose clamp on where the coupler and boost leak tester overlap to hold the tester in place when you pressureize the intake.


    Step 3. Install the boost leak tester along with coupler and hose clamps onto the turbo inlet. Make sure that both clamps are tight.


    Step 4. Pressureize the Intake Track:
    A. Get out your air compressor (make sure you have the fitting that you use for inflating tires on) and simply place the hose from the air compressor onto the schrader valve of the boost leak test.
    B. Watch the gauge on the boost leak tester so you don't over pressureize.
    C. Once you reach your desired pressure remove the air hose and listen for leaks.


    Step 5. Fix leaks and re test

    Step 6. Uninstall tester and reinstall your intake pipe, MAF (remember to plug it in) & Air Box, BOV return line and PCV line.

    Attached Files:

  2. oldman

    oldman DSM Wiseman

    Joined Jun 21, 2003
    Dayton, New Jersey

    Step 1B : Remove the BOV return hose and PCV valve hose.

    This step is not to be followed, I have had several members asking me about this.

    1. Removing the BOV line will result in an opened BOV during the test once the intake pressure is higher than the BOV spring pressure.

    2. Removing the PCV line will exclude the PCV valve from the test, the PCV valve is a known leak, instead, open the oil cap and listen for leaks in the crankcase and then remove the PCV line as part of the troubleshooting/process of elimination for crankcase leaks.

    Here is something I posted in the past.

    Artago likes this.
  3. luv2rallye

    luv2rallye DSM Wiseman

    Joined Jun 7, 2003
    Minneapolis, Minnesota

    Attached Files:

    Last edited: Jun 12, 2015

    3K  0

    1999 Mitsubishi Eclipse GST
    14.200 @ 95.000 · 2G DSM
    Killa_dsm likes this.

Share This Page

Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing Raven Fabrication RixRacing RockAuto RTM Racing SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory