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| RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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#1 | |
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Mod With The Least :P
Join Date: Feb 2008
Location: Manchester, TN
Posts: 1,649
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What series Turbo are you using? A S4? If you are putting any decent exhaust on a S4 turbo, you need to port the wastgate which is actually pretty easy. S5s are btter when it comes to the wastegate functioning properly, it still may need ported. While the wastegate technically limits boost, the real limit on boost is the stock exhaust restriction. On a mildly ported S4 wastegate and a 3" Intake and Exhaust my car has boost crept as high as 16.5psi with about 10-12psi being normal in 3-5th gear. I have since opened the port up all the way so will have to see how it works out
![]() I would recommend the pump upgrade definently. As far as injectors, it will not recognize them and will run poorly in my experience. If you want bigger injectors, have your ECU upgraded by Rtek.
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#2 |
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The Newbie
Join Date: Feb 2008
Location: Latrobe, Pa
Posts: 17
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I don't "want" bigger injectors, I am just wondering about increased safety in case of boost creep.
I have been looking at the RTEK 1.5. Is this a good way to protect the engine? It retards timing by 1 deg for every 1 psi over 9. Also, it gives the injectors an extra 5 % max duty cycle. <-- does this mean that if you do encounter boost creep, it will help you run safely to say 10 psi? What is the max guage pressure that I should be concerned with? Basically at what psig should I be getting out of the throttle? Thanks! |
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