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hi was wondering if any one knows about fitting a greddy profec b or similar boost controller to a Z? as thought they only controlled 1 solenoid?

 

im really confused by this as surely you dont need 2.... that and i found 2 manual bleed valves on my new Z and they have got to go asap,

 

that and how do Z's respond to atmospheric dump valves, as i think one of my recuircs is starting to go, and was thinking of a pair of HKS ones,

 

but if they are anything like s13's every time the valve goes the car runs rich and smokes slightly, i tried it on 4 different S13's with 3 Different valves and it was the AFM causing trouble....

 

and does anyone have any recommendations for an air filter as much to my amazement a chipped Z running a full straight exhaust system still has the standard air box fitted???

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Single solenoid is correct, plumbed in with T-piece together. Twin solenoids are just for "Improved accuracy" on some controllers, and nothing to do with the number of Turbos.

 

Most popular and highly recommend Filter is the Apexi Induction kit.

that and how do Z's respond to atmospheric dump valves, as i think one of my recuircs is starting to go, and was thinking of a pair of HKS ones,

 

but if they are anything like s13's every time the valve goes the car runs rich and smokes slightly, i tried it on 4 different S13's with 3 Different valves and it was the AFM causing trouble....

 

 

Don't bother with dump valves. Apart from my own personal hatred for them, they serve no purpose. They actually dump metered air and will cause rich running, hesitation and a delay in boost pressure...not always noticeable, but because the ECU is working on the premise that any unused air is recirculated via the recirc valves, the above can always be expected when running stock management.

 

A set of known good recirc valves or Bailey's own DV30 recirc valve is the best option. Infinitely better than wasting your time with something as benefit-less as a dump valve. :)

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thanks for everyones help, but what about my bhp figure it does seem really low in the rpm range.... and the graphs stop just after that rpm, power stays level torque drops away at about 45degrees

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