I wanted to share some info that I hope will help others. After an MRX turbo install, I wasn't building boost to appropriate levels. I ended up building a DIY boost leak tester using my old stock intake tube, a 3" pvc cap and coupler. While this method isn't groundbreaking, I did find some issues with the boost system that have not been touched as they are stock and my vehicle has under 10k miles.
It looks jury rigged and thats because it is. It was a pain to shove the cap wayyy down into the compressor inlet but this provided the length for ease of access. I pressurized my system with 28lbs of air and ended up finding boost leaks in the following areas:
Bov connection: squeeze clamp wasnt tight enough so I replaced with gear clamp.
Bov tube to cold side charge pipe: same as above.
Cold side charge pipe to manifold clamps x2: both leaking air.
Cold side manifold to rubber hose from intercooler: tightened clamps.
Hot side charge pipe to turbine: tightened clamp.
After all the fixes I gained 2lbs of boost. Good luck!
It looks jury rigged and thats because it is. It was a pain to shove the cap wayyy down into the compressor inlet but this provided the length for ease of access. I pressurized my system with 28lbs of air and ended up finding boost leaks in the following areas:
Bov connection: squeeze clamp wasnt tight enough so I replaced with gear clamp.
Bov tube to cold side charge pipe: same as above.
Cold side charge pipe to manifold clamps x2: both leaking air.
Cold side manifold to rubber hose from intercooler: tightened clamps.
Hot side charge pipe to turbine: tightened clamp.
After all the fixes I gained 2lbs of boost. Good luck!
