A boost leak
#1
Car n' Shop
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A boost leak
I have a boost leak but i can't find out where it is comming from. I have the efini y pipe so i don't think it is a coupler. I have an fmic with silicone couplers that are still kind of new so i don't think it is leaking from those couplers. i checked all the 1" diameter houses and they are all tight.
Well, the problem is that on the primary turbo there is only like 4 psi. The pattern is 4-0-12. What do you guys think it could be?
Well, the problem is that on the primary turbo there is only like 4 psi. The pattern is 4-0-12. What do you guys think it could be?
#2
Big Daddy!!!
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I'm pretty sure that the primary turbo needs to make more than 7psi of boost to get the secondary spooling and eventually switching over. If you had a boost leak then you would not be able to acheive this let alone 12 psi of boost after transition.
R.K.
R.K.
#3
It doesn't sound like a boost leak at all -- your 12 PSI means the system is holding pressure. It's more likely the valves/etc that control the turbo operation. See the troubleshooting guide:
http://www.autosportracetech.com/RX-...leshooting.htm
http://www.autosportracetech.com/RX-...leshooting.htm
#5
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Your problem that you are having is the reason I went non-sequential when I had my twins. A lot less problems and worries.
R.K.
#7
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I'm betting that your charge control valve isn't opening properly. Check all the vacuum hoses going to/from the charge control actuator (the golf-ball sized one). Also make sure the system is holding vacuum and pressure.
If you're good there then run the KOKO test. http://www.fd3s.net/boost_test.html
Dave
If you're good there then run the KOKO test. http://www.fd3s.net/boost_test.html
Dave
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