S5 FD Apexi Power FC install update
 

A few months ago we installed an FD Power FC in our 13b-re Vert.

We have updated the "how to", it now it includes:
Complete FD igniter install instructions
E-fan relay for PFC temp control
PS2 cable install

The wiring diagram and instructions have all been updated, the new link is:

http://www.banzai-racing.com/index_s5_pfc_install.htm

What is the deal with plug 2 now? Do you have to source that part to finish the install since it shows the tach signal coming from there? Otherwise, fantastic write up.

that wiring diagram... is that looking at the plug from the wiring harness side (the back of the plug), like in the FC factory service manual?

I am considering a Power FC for ease of install. What is the difference between this install compared to the AP Engineering Power FC with Patch Harness?

It would be easier to source the connector, but in a pinch the wire with the terminal on it could be connected directly to the ECU pin.



The wiring diagram is looking at the ECU connections, just like the FSM.

Obviously the AP is easier to install, considering there is no pin manipulation. However the patch harness adds $800 to the price of the PFC. I think it is easier to spend $650 on the FD version. The AP unit still needs the MAP and IAT sensors installed. An FD igniter is pretty inexpensive on the used market.

great writeup. what's the advantage of using the FD ignitor compared to stock FC coil packs? I'm assuming it's necessary when adapting the FD PFC compared to using the AP version?

You keep the stock coil packs, the FD ignitor is needed to fire the T2 coil. The FD PFC does not have the switching wiring for the trailing coils, so without the FD igniter it only fires the leading coil and the T1 coil.

pity that no-one makes an adaptor harness ( that doenst cost mega bucks )

would make life a lot easier for those who dont want to hack the loom apart

Actually there is one RP (rx7.com) sells one for $149, that is for exactly that purpose. It would still require the wires to be changed on the adapter harness, but you could leave the stock one alone at the ECU end. I am positive there is one of these available for the FD, I just need to find it. Then the need to source connector #2 will be eliminated.

EDIT: I found a source for the FD patch harness ($159) http://www.autosportwiring.com/products.htm#Mazda

thats pretty cool

i was actually thinking at one point of seeing if i could make on

get a FC ECU and remove the connectors - get a FD ECU connector ( from the loom ) and then try and solder all the wires between them

not sure if its actually do-able though ???

i have just emailed the company to see if they can actually make the harness with the wires already swapped

i know that NO ONE in the UK does them - so gonna see what they say

i could package it together with all the parts and then sell it as a "Apexi Adpator Kit"

i would love a Apexi Ecu in the FC - they look really really really cool

will it still show you injuector duty and stuff like that ??

Stu

We (Banzai Racing & Autosports) are working on an adapter kit now. It should be available in the next week or so. It will eliminate the need to change any wires at the ECU. The FD igniter will still need to be installed. This will allow people to go back to the stock configuration much easier. You will be able to buy it through us and receive tech support on the install.

We are also going to see about making one for the S4.

The commander reads out everything , injector duty, boost, water temp, intake temp, knock, etc.

how much will the harness retail for ??

i wonder if they will answer my email then - knowing that you are working on it ???

We will have all those numbers shortly, we are trying to keep it as affordable as possible.

I was not going to mention it until we had it ready to release.

sorry for making you spill the beans then :(

been reading up and your site - and its doesnt look toooo bad to do

will it run on a base map - or does it need to be tuned ASAP ?

thanks for the link

how different is the fd wiring ?

It has to be tuned right away, but that will be one of the perks of buying the adapter harness, we will supply a new base map that will allow the car to be driven. It is not too bad but there are people that do not feel comfortable changing the wiring, this is why we are going to offer a plug-n-play harness kit, including the GM map sensor adapter

Unholy- take a look at the wiring diagram

On an s4 though, you need to install some FD sensors though right? Remember that hardly anyone has an s5 t2 really. There are probably two dozen FD's in my city but ONE s5 t2 that I have ever seen, and he is a regular member of the local rotary club.

The install is virtually the same. Power FC, FD igniter, FD intake air temp, GM 3 bar map sensor, it just has a different wiring configuration and some of the options like the twin scoll are not available. Anyone installing the Power Fc most likely has modified the car to point where the twin scoll has been removed.

hummm when you say tuned right away - i take it that you mean that you can atleast drive it to a tuner and not drive round for 5000 miles before hand ?

removed twin scroll - eerrrrr still got mine in ( i think !! ) in my S5 TII

There is no twin scoll in an S5, mazda eliminated it. On the S5 it keeps everything operational, but you get to pitch the AFM and factory boost sensor. You can choose to keep or remove the OMP, if removed it does not throw any codes and no limp mode.

i have a 10th ae and im planning on installing a power fc in april if you guys have a harness ready by then i would prolly buy from you guys....also what would you think about i buy all the parts and you guys install it....how much do you think it would run and how long...thanks

Internally the AP unit has a different ROM chip, what specifically is different other then the base map I'm not sure. It's listed as the 13B1 revision, and I'm very happy with my AP unit

I'm not sure why you need an FD igniter, the AP PFC doesn't require this change. Also an FD map sensor works as well, and if you can cut the plug off an FD harness it's as simple as soldering a few wires together and it becomes plug and play. Same deal with the IAT.

I am glad you are happy with it. I am also glad you are happy with the price tag. What we are doing is offering up the same thing at half the price.