I've got stoke engine I would like to increase my pressure up to 13.5 - 14 psi.

 

I think to use manual air pressure reducer with gauge but I saw there is a lot devices on the market (like boost controler). How does is it work? Which items should I buy with this device? What's the best way?

 

Thanks in advance for your advises.

 

Stéphane.

I've got stoke engine I would like to increase my pressure up to 13.5 - 14 psi.

 

I think to use manual air pressure reducer with gauge but I saw there is a lot devices on the market (like boost controler). How does is it work? Which items should I buy with this device? What's the best way?

 

Thanks in advance for your advises.

 

Stéphane.

 

Hi, there are various electronic actuator controllers that can give you 'in car' adjustable boost pressure. HKS EVC, APEXI AVC-R etc all achieve the same results and some look better than others. The electronic boost controller costs anywhere from £250-£500 + about half a day to install.

 

The easier and much cheaper way to increase your boost is to restrict the vacuum pressure to the turbo actuators by way of a restrictor. Just as effective in achieving increased boost although tends to suffer a bit from unstable boost and boost spikes.

 

There are also risks with fitting an electronic boost controller aswell. These devices have there own boost control solenoid valve, which means you need disconnect the factory boost control solenoid valves. Your Z will no longer go into safety boost if the ecu detects detonation.

 

With either setup, you will need a boost gauge fitted to monitor boost and if you want to make the most of 14psi, an air intake, free flow exhaust and eprom upgrade would also be recommended.

 

Regards

 

Steve

Ok, I know I need to change my air intake, exhausts and eprom and I'll make it in few times. But I don't understand how boost controller works. For me, the 300Z hasn't electronic boost actuators, that's mechanical. The stoke wastegate is activated near of 10PSI. Why boost controller need to be connect with ECU? Because ECU don't control the boost. In France we don't find this kind of items, so nobody can give me some explanations about it.

Ok, I know I need to change my air intake, exhausts and eprom and I'll make it in few times. But I don't understand how boost controller works. For me, the 300Z hasn't electronic boost actuators, that's mechanical. The stoke wastegate is activated near of 10PSI. Why boost controller need to be connect with ECU? Because ECU don't control the boost. In France we don't find this kind of items, so nobody can give me some explanations about it.

 

The ecu never controls the amount of boost. It can switch off the stock boost control solenoids so that the actuators only work on spring pressure....6-7psi.

 

An electronic boost controller connects into the ecu wiring harness to use sensor information and operate accordingly. The controllers generally connect into POWER, RPM, TPS and will display this information and boost information via it digital display. It will also control its own solenoid / actuator and has a boost sensor used to give the preset level of boost required.

 

Its all about control ;)

 

Steve

Ah ok, thanks, so connection to trhe ECU is only to take informations and not to control. Th boost controller is delivered with these own actuators to increase the pressure. In brief, I just need to buy a boost controller to increase and adjust my intake pressure. Which kind of boost controller you suggest me?

I saw we can also use boost jets. That's a restriction in outlet intercooler. What do you think about it? Where could I find it?

Ah ok, thanks, so connection to trhe ECU is only to take informations and not to control. Th boost controller is delivered with these own actuators to increase the pressure. In brief, I just need to buy a boost controller to increase and adjust my intake pressure. Which kind of boost controller you suggest me?

I saw we can also use boost jets. That's a restriction in outlet intercooler. What do you think about it? Where could I find it?

 

I have an APEX AVC-r that I don't use. My actuators are preset at 21psi and I don't need more than that.

 

Steve

An upgraded ECU also provides increased fueling to match the increased boost pressure.