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| Forced Induction Discuss topics relating to turbochargers, superchargers, and nitrous oxide systems. |
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#1
05-25-2003, 11:20 PM
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Overboostin Problem
sup guys? my car is overboosting my wastegate (internal) is set for 5.5 psi... ever since i got custom 2.5" piping its been boosting 7..-9psi. funny thing was that it wasnt doing that when i first got the piping done..only like about a week or 2 after. i heard that internal wastegates need backpressure to function properly..is that true? heres what i think may be wrong:
1. wastegate is getting stuck and i have to spray both sides of the actuator rod with lubricant to get it to move freely again or 2. bigger exhaust diamter causing turbo to overboost/spike..and have to put my stock exhaust back on.. at 5.5psi the stock exhaust should be fine right? any help/opinion would be appreciated guys..thanks
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i dont have turbo my car just has a cold.. 2000 EX Civic automatic Greddy equiped TD04-15G front mount intercooler MSD 8.5mm wires custom 2.5" piping w/ magnaflow muffler 
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