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EF3 slow spool? Help!

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Old Jun 18, 2014, 02:58 PM
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I don't think this is causing it but could be worth a look...




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Old Jun 18, 2014, 03:02 PM
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I would not bet against the cracked gasket being your problem (from the pics you just posted).

The crack is from one side to the other and this could easily allow exhaust gas to escape.
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Old Jun 18, 2014, 03:13 PM
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would it be enough to slow my spool 1k rpms you think?
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Old Jun 18, 2014, 03:34 PM
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MECKERT, if youre talking about the WGA it is tightened all the way down. I even checked with the WGA attached to the flapper arm, I read that it can pull unevenly and make it lift. Mine was fine.
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Old Jun 18, 2014, 03:43 PM
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Originally Posted by black_beauty
...Im doing a boost leak test and even at 80psi on my regulator the boost is only showing like 20psi....
Wut?
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Old Jun 18, 2014, 04:02 PM
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I put 80psi from my air compressor into the boost stream and my gauge only read 20psi...
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Old Jun 18, 2014, 04:07 PM
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your gauge could be busted. I have gone through a few boost gauges. Which is why i only rely on my map sensor to determine boost level.
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Old Jun 18, 2014, 04:15 PM
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gauge is working correctly, I had just driven it up the road and logged with evoscan to over 20psi.
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Old Jun 18, 2014, 04:18 PM
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Replace both turbo gaskets. Install and go for a test drive. Let us know if it improves any.
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Old Jun 18, 2014, 05:48 PM
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Im replacing all 3 gaskets above the DP, I also found that I don't have a gasket on the turbo outlet pipe, seems like the guy that built my motor just put RTV on it... smoking gun?
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Old Jun 19, 2014, 01:55 AM
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If you can only hold 20psi during a boost leak test while putting 80psi to it, I think you've found the problem.
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Old Jun 19, 2014, 02:20 AM
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There are no boost leaks though...
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Old Jun 19, 2014, 03:57 AM
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Its going somewhere.
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Old Jun 19, 2014, 02:27 PM
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Originally Posted by black_beauty
There are no boost leaks though...
Did you use a spray bottle with soapy water around the turbo area to see if there were any leaks there?

I am pretty certain (gut feeling) your problem is due to those turbo gaskets....
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Old Jun 19, 2014, 02:49 PM
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I did use soapy water, always do. Im replacing the exhaust mani, mani/turbo, and o2 gaskets and im gonna see if that fixes it.
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