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Old 08-13-2012, 07:32 AM   #1
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Default boost leaks caused by ACV??

hey guys finished my turbo setup and it seems boost is limited to 5psi. i rigged up a boost leak tester with an air compressor and a bottle of soapy water and discovered that the air control valve makes bubbleson the front housing. is it supposed to be completely sealed?
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Old 08-14-2012, 12:15 AM   #2
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Very unlikely would it seal perfectly. Further, it does not need to.

For a boost leak to be significant, you need a gapping wound. Try putting a 45 slug through your intercooler, or a boost tube, and you won't show any real boost loss.

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Old 08-14-2012, 01:01 AM   #3
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Quote:
Originally Posted by Corky Bell View Post
Try putting a 45 slug through your intercooler, or a boost tube, and you won't show any real boost loss.

Corky
Not sure if Snap-on or Mac makes one of these tools, but I hear Colt made a fine one if you are feeling inclined to trouble shoot some more.
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Old 08-14-2012, 01:35 AM   #4
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If you can't afford the Colt 45, hi-point is like the harbor freight version.

But from my little turbo knowledge. Turbos move a lots of air (cfm ) so unless cubic feet of air can get out fast, you still build boost. Maybe a tiny bit slower...

Turbos deliver hundreds of cfm. It is not like an air compressor that delivers only like 10cfm.

But the iacv shouldn't have a boost difference. Should be equal pressure on both sides? Or do you not have it connected to your piping? I could be way wrong, I am a noob to the boost.
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Old 08-14-2012, 08:35 AM   #5
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yes it is connected to the intercooler piping. i may have to by pass my intercooler and see if it boosts. thanks guys.
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