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Old 09-22-2006, 01:03 PM   #76
Valhakar
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Quote:
Originally Posted by nhluhr View Post
dunno how many times this needs to be said, but YES it IS 2". You don't put it over it, you jam it inside. The reason is because you'll be pressurizing it. If you put it over the inlet, it will expand and blow itself off. If you put it inside the inlet, it will expand and seal itself tighter.
And I don't know how many times to say this. You are mistaken. You now have two people reporting the same issue. 2" nets the exact SAME outer diameter as the stock intake on my 2003 and now his 2002.

I swear to god man, you get an idea in your head and we need a bulldozer to get it out.
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Old 04-04-2007, 10:32 AM   #77
Robstunner
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,
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Originally Posted by jdgrimm View Post
ok. so i build this exact setup tonight and i couldnt get any psi when i tried to fill it up. i didnt know how much to put it but i one point i probably pumped in 20-30 seconds worth of air and it didnt even read anything. i just took the airbox off and hooked it up to my turbo inlet and gave it a whirl.

anyone have any ideas?

sorry to bump an old thread...

but i have this same problem and this leak is pissing me off hardcore
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Old 04-04-2007, 01:09 PM   #78
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Thinking about doing this but since I have a FMIC plugging it into the Turbo Output to test the intercooler piping.

Hoping I dont have to pull off the bumper to fix a leak.
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Old 04-04-2007, 11:44 PM   #79
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What did you guys use to plug the three nipples on the turbo inlet?
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Old 04-18-2007, 09:25 PM   #80
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I was able to run the test but the air was coming straight out of the exhaust. This is with the fitting in the turbo inlet, capped off the fittings, capped off the intercooler piping at the throttle body coupler.
I could sit there and constantly run air through and it would not compress. I sat down by the exhaust and absolutely heard air coming out. What does it all mean?
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Old 04-18-2007, 10:28 PM   #81
Vlad
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I think it's possible that all engines stop in the same positions, most of the time. It can be that in the WRX a position is with one of the cylinders having intake and exhaust valves open.
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Old 04-18-2007, 10:37 PM   #82
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I don't think that's possible since I capped off before the throttle body.
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Old 04-18-2007, 10:54 PM   #83
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Look, if there was no physical connection between the air supply and the engine (you disconnected and caped everything), then I don't know see how the air got into the exhaust. It would have to travel from the compressor housing into the turbine housing.
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Old 04-18-2007, 11:05 PM   #84
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It seems that way doesn't it? That's why I'm posting about it. I'm ******* LOST!

It's like this...air into the turbo inlet, capped all 4 connections on that, including the bpv hose. Capped the throttle coupler at the throttle body. At that point I was thinking I would strictly be testing the intake system since everything else was bypassed but somehow the air won't compress and comes right out the exhaust. I had sure I could hear the air coming, going, coming, going, etc as he fed it.
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Old 04-18-2007, 11:10 PM   #85
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Was everything cold? Try to separate the turbo, that would confirm the finding. Did you also cap the compressor boost pickup nipple?
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Old 04-18-2007, 11:14 PM   #86
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Yeah everything was completely cold. Car hasn't ran since Tuesday.
I got mad and ripped it apart. The turbo is out and sitting on the work bench.
Tomorrow I'm going to swap my TD04 back in and see if that does anything.
Far from the easiest way to diagnose but I was mad and something is telling me it's the turbo.
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Old 04-19-2007, 08:13 AM   #87
187
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I am having a real hard time sourcing the parts especially the rubber cap......can anyone post an internet link to somewhere that has them?
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Old 04-19-2007, 08:33 AM   #88
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It's weird. If the prosibility exists for a leak between compressor and turbine, probably the exhaust would come into the compressor, there's more pressure there.
Otherwise, the leak would have to be in the wastegate area.
I havent' heard of this from other forums, maybe it's a TD04 problem?
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Old 04-19-2007, 06:32 PM   #89
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I'm running a VF23. What would be the best way to test the wastegate while the turbo is out of the car?
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Old 04-20-2007, 07:12 PM   #90
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This may sound stupid, but hook up the air supply to intake side of the compressor and maybe try to close the outlet with your palm. I think that this way you won't do dammage because you'll just use your judgement.
Obviously, a leak will be heard on the exhaust (turbine) side.

I got the idea from the days when I was cleaning carburetors by reving and chocking the carburetor intake with my palm.
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Old 07-17-2007, 05:13 PM   #91
aps2fast4u
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subbed for future reference!
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Old 07-23-2007, 04:46 AM   #92
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im gonna try make this tommarrow.. hopefully it will get me out of "limp" mode !!!! i think i have been running on wastegate since the dealership sold me the car.. bastards..
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Old 07-23-2007, 11:00 AM   #93
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Yo Erick,

Did you ever do this? Do you have a pressure tester. This not hitting full boost is really getting to me. I replaced all the vac lines in the car so the leak, if there is one, must be coming from somewhere else.

Wanna help me figure it out?
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Old 08-14-2007, 12:22 AM   #94
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so.... what size pvc piping should I get for the stock inlet hose???
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Old 08-14-2007, 02:58 AM   #95
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Quote:
Originally Posted by athakur999 View Post
That's pretty neat. Now someone make something like this for the exhaust side
it can be done motor would have to be @ TDC
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Old 08-14-2007, 03:00 AM   #96
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Quote:
Originally Posted by Sooby-Doo View Post
Yo Erick,

Did you ever do this? Do you have a pressure tester. This not hitting full boost is really getting to me. I replaced all the vac lines in the car so the leak, if there is one, must be coming from somewhere else.

Wanna help me figure it out?
mske sure your boost gauge goes right to your Manifold with no T off's in the vac hoses if there is it wont be a correct boost reading.
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Old 08-14-2007, 03:00 AM   #97
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Quote:
Originally Posted by Sooby-Doo View Post
Yo Erick,

Did you ever do this? Do you have a pressure tester. This not hitting full boost is really getting to me. I replaced all the vac lines in the car so the leak, if there is one, must be coming from somewhere else.

Wanna help me figure it out?
also check the stock turbo inlet when i took mine off the clamp was lose where it clamped to the turbo.
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Old 08-14-2007, 08:19 AM   #98
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Quote:
Originally Posted by 1bugeyedrex View Post
so.... what size pvc piping should I get for the stock inlet hose???
....?
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Old 08-14-2007, 10:48 AM   #99
imprezawrx1212
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is it necessary to plug the ventilation ports on the inlet to perform this test?
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Old 08-22-2007, 10:59 PM   #100
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Quote:
Originally Posted by decaman View Post
What did you guys use to plug the three nipples on the turbo inlet?
Bump for an answer to this... I tried duct tape, but air leaked through it
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