RX7_FD3S_JDM

I remember reading that the non sequential setup is better tuned with the pfc left in seq mode?


I cant find the thread anywhere.


I would like as much info as i can get on this please.


thanks

RX7_FD3S_JDM

bump

arghx

iTrader: (3)

With "sequential turbo control" enabled, PFC is issuing commands from 5 outputs:

1. Charge control, which opens a butterfly valve inside the Y pipe on the stock system

2. Charge relief, which opens a recirculation valve while the secondary turbo is in prespool operation

3. Turbo control (2 solenoids controlled by one ECU output), which opens a swing valve to allow a large amount of exhaust to flow into the secondary turbo

4. Precontrol, which is a valve similar to a wastegate that controls boost when the engine is only running on the primary turbo

5. Wastegate, which bleeds exhaust away from the primary turbocharger inlet in a basically conventional internal wastegate fashion


The sequential turbo control setting has ZERO effect on anything else. If you are not using any of the above outputs from the ECU, it does not matter at all whether you have the box checked or not.

What this means in practical terms is that to control boost with a Power FC on a non sequential car or single turbo, you leave "sequential turbo control" ON. Then you have to adjust a few settings in the Datalogit FC-Edit software for it to work right. I have explained this thoroughly in other threads. For PFC boost control to work on non sequential or single turbo, it is the sequential turbo transition setting which needs to be changed in the Settings 1 tab. All "high" values can be set to 2000rpm and all "low" values set to 1800 rpm.

If you are non sequential or single turbo and have some form of external boost controller, it makes ZERO difference whether the sequential turbo control setting is on or off.
It won't make your car faster, slower, easier to drive, more reliable, or less reliable.

RX7_FD3S_JDM

Thankyou sir thats all the info I needed

Tem120

iTrader: (5)

I dont have a power FC but was looking into getting one , from what you're saying is that with a power FC you dont need an external boost controller the power FC can regulate boost on its own ( using sequential turbos in my case )


Also very sorry to hijack the thread .

arghx

iTrader: (3)

^ check out this thread on electronic boost controller comparison, including the PFC's built-in capability https://www.rx7club.com/3rd-generation-specific-1993-2002-16/electronic-boost-controller-comparison-chart-952767/

RX7_FD3S_JDM

so in non seq mode i just need the one mbc between the wastegate and turbo yeah? only askin because in some threads i see people are using 2

arghx

iTrader: (3)

yeah in non sequential that's how it goes. You cap off one hose coming off the WG actuator and then install an MBC.

RX7_FD3S_JDM

I dont supposed the PFC can be setup like anti-lag?

if not is there a thread dedicated to fd3s anti-lag?

thanks

arghx

iTrader: (3)

no it can't do that. You need an external system to do that, or you should switch to a Haltech or AEM EMS.

Vell

Or the über rare Power FC Pro ... This thing is almost as rare as the unicorns.