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RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections. |
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02-29-2008, 10:54 AM | #1 |
Rotary Fan in Training
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Low Secondary Boost -- How did you fix it?
I know that plenty of FD owners have encountered low to no boost from the second turbo. And I've read the troubleshooting guides that are really quite well done.
What I am wondering though is Exactly what you found/fixed to correct a low boost from the Secondary. Really interested in getting a feel for the frequency of the different problems that cause the boost issue. Thanks |
03-04-2008, 01:01 AM | #4 |
Rotary Fanatic
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Check bypass valve on secondary side, it could be blowing open.
If engine has been blown, the bits could have ruined the turbine wheel in the 2nd turbo. It could be a leaky diaphram in the switching actuator in the exhaust manifold or leaks in the vacume lines going to them. It could be bad bearings in the turbocharger as Chris stated. Bryan@BNR |