0BS intercooler install questions
Cargo Master
Joined: Nov 2010
Posts: 2,797
Likes: 10
basic test for boost leaks https://m.youtube.com/watch?v=ab3GD2TPdhE
the other test is for exhaust leaks, I have never done that, a simple visual inspection usually will clearly show a significant leak at the manifold to up pipe or collector at turbo. Monitoring ebp vs boost pressure will also give s respectable ratio to go by. If you are above 15-17 psi of boost on stock stick your up pipe leaks are minimal if present.
your compressor housing could also be leaking at the cover o ring, which also will show on an inlet to intake boost leak test which also tests the turbo housing.
the other test is for exhaust leaks, I have never done that, a simple visual inspection usually will clearly show a significant leak at the manifold to up pipe or collector at turbo. Monitoring ebp vs boost pressure will also give s respectable ratio to go by. If you are above 15-17 psi of boost on stock stick your up pipe leaks are minimal if present.
your compressor housing could also be leaking at the cover o ring, which also will show on an inlet to intake boost leak test which also tests the turbo housing.
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Senior User
Joined: Jan 2017
Posts: 107
Likes: 0
I had to run to town real quick and really paid attention to boost I made 14 pounds at 2000 rpm but egt was 1200degrees it's like I can't use even half the pettle does this seem.odd to any one else?
Hotshot
Joined: Dec 2012
Posts: 11,271
Likes: 1,654
From: Las Cruces New Mexico
That right there is your first clue, most likely your up pipes are leaking. Sometimes the EGT probes can be damage and giving false readings.
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Hotshot
Joined: Dec 2012
Posts: 11,271
Likes: 1,654
From: Las Cruces New Mexico
Right where the two up pipes connect to the turbo mounting flange you shouldn't see any soot. You can buy some bellow up pipes but are $$$ or you can go with home made up pipes, look at the MOD/tech folder there's a really good detailed how to.
Fleet Mechanic
Joined: Jan 2011
Posts: 1,793
Likes: 74
From: Richland, WA
Riffraff Diesel Bellowed Up-pipe Kit for Ford 7.3L 94-Early 99
Hotshot
Joined: Dec 2005
Posts: 14,376
Likes: 605
From: evansville in
Riffraff now makes their own up pipes that are much cheaper than the International ones. Obviously, they're still not as cheap as DIY, but unless your trans is out or you have a block on an engine stand to mock them up on, it would be very difficult to impossible to DIY up pipes in the truck.
Riffraff Diesel Bellowed Up-pipe Kit for Ford 7.3L 94-Early 99
Riffraff Diesel Bellowed Up-pipe Kit for Ford 7.3L 94-Early 99
