87GTR

iTrader: (61)

Over the weekend I installed the Apexi Power FC for FC3S in my Infini. The install was mostly painless. I removed the AFM, stock boost sensor and stock air temp sensor. I used the Apexi 3 bar map sensor, FD3S air temp sensor.

At first I got some crazy idea to put the air temp under the upper intake manifold (just like on the FD’s). I totally forgot what it was like to take off a stock upper and tb. Once I got it out I raise it above my head like “the predator” pulling that guys spine out. Well after I got out I decided not to put under it, and ended up putting it in the same location the FC air temp sensor was in the TB elbow. retaped the hole and installed it.

The car started right up 1st time. Hopefully will be able to get it tuned soon. The car drives better and feels better on the butt dyno.


only thing I noticed is I still have the therowax and when I start up the car cold it goes to 2k and stay there until it reaches normal temp. after that it starts and drops right to 750rpm.

While I was doing the install I also removed the HKS EVC and found the hose that goes to the accuator was crimp so bad that I dont see how the boost controller worked.

any know where to get speed singnal at? thats the only thing I didnt connect. If I remember right its a white wire that in cpu box in the kick pannel.


here is some picks



before removing the boost sensor/ knight sports fcd / afm


mounted the apexi 3 bar map sensor on the firewall.


old ecu


Apexi Power FC and Harness


The only give you double sided tape to mount the ecu. Im going to build some brackets this weekend and mount it more solid.

ilike2eatricers

Cool nice to see someone else running an AP PFC

The speed sensor wire connects with the signal wire from the cruise control. I forget exactly which one because I never bothered since it would only read in km's. I'm using a stock FD map and AIT temp sensor

Adam P

iTrader: (19)

must be nice

hIGGI

iTrader: (7)

is your PowerFC new or used? how much had to shell for it with FD air temp sensor and 3 bar map?

NZConvertible

Nope, it's green/red wire. The speed sensor is in the speedo, and the signal is sent to the power steering, cruise control and AAS modules. IIRC you don't have any of those, but since this is a J-spec car the speed signal is also sent to the ECU for the speed limiter. The Apexi adaptor harness has most likely taken care of this connection for you. You'll just need to replace the screw in the back of the instrument cluster to reactivate the ECU speed signal.

87GTR

iTrader: (61)

The ecu was used. I ended up getting a new commander and map sensor for it

commander is around 300 new and map sensor and harness is around 180.

The fd air temp I took off a FD parts car.

87GTR

iTrader: (61)

in the apexi connector harness it has one really long wire that for speed. I will try to track it down.

I belive the speed limit signal is sent from cluster once it reaches 180km. it should be a on and off. I will put the screw back in and see.

yeah I do think your right about the wire being green/red long time ago I had a avcr that used speed signal

NZConvertible

Ah, I think you're right about that. Sorry, my bad. So you'll need to go to the back of the instrument cluster. I'm only assuming it will actually have a speed signal, since you don't have any of the modules that normally use it. Maybe check out the locations where the power steering and cruise control modules go in case the unused wiring is there.

limbar85

iTrader: (21)

yea....it would be nice to know because i never got my speed to work either.

DaleClark

iTrader: (55)

Every electronic doodad for the FC I've installed (and I've installed a bunch) tapped into the speed sensor on the cruise control harness. Even if you don't have cruise, that wire should still give a good signal, and it's relatively easy to get to and find - it's in the driver's side kick panel. That's probably why the wire is so long as it has to cross over to the other side of the car.

Definitely worth a try. It's in the documentation for stuff like the HKS Type I turbo timer that need a speed signal.

Dale

ilike2eatricers

You can also look up the wiring instructions for an Apex AVCR too for reference.

limbar85

iTrader: (21)

87gtr....did u get the speed thing figured out? let me know if u did and how

87GTR

iTrader: (61)

yeah I looked in the apexi pdf, I need to track down my cruse control computer.

on my old car in the states it was in the drivers kick panel. Im guessing its in the same location on my RHD car.

http://www.apexi-usa.com/pdfWiring/8.pdf
page 18 - 19

limbar85

iTrader: (21)

but either way once u find it....are u sure the long wire off the harness is for that?

87GTR

iTrader: (61)

everyone I have asked say thats what its for. I will stop by the apexi dealer tomorrow. If the weather clears up (been raining past 3 days) on friday I'm going to look for the cruse control box.

87GTR

iTrader: (61)

ok I got the speed working!!! JDM cars its on the driver side kick panel. Mine does not have the cruise box, but I found a connector that was open and matched the layout in the Apexi PDF. The wire is Green with a Red stripe. Looking at the connector its on the bottom row 3 over starting from the left.

yes the long wire is on the harness is for speed but mine is not near long enough. I had to add about 2 feet to mine.

I will post some pics once I clean it up. right now its in test rig mode.

87GTR

iTrader: (61)

pictures here

after I rerouted the test rig, I didnt need to add two feet of wire. the wire stock wire on the harness was just right lenght. I spliced the wire, then soldered it, then used heet shrink over the slice.

http://infini-fc3s.cyberosity.com/ga...+Speed+Signal/

Gotta love Okinawa. Two seasons here Rain and Hot. today its Rain

staticguitar313

iTrader: (2)

OK this is awesome, so you can use the APFC in the S5 TII (in this case infini IV) could i use it in my S5 N/A?? I'm turboing the stock engine and this would probably help alot!

87GTR

iTrader: (61)

Im not sure about a S5 N/A harness you might have to hack the harness up to connect it. I saw somewhere had figured out how to use FD PFC in S5 T2.

maybe check this out
https://www.rx7club.com/showthread.p...&highlight=PFC

Turbo II FC

iTrader: (14)

I wish this info was more readily available about 3-4 years ago...lol. I think I would have gone with a Power FC in my FC rather than the Haltech E11 I currently have. I did have a AP Engineering Power FC once a few years back but sold it to NeoFreak. I currently have a Power FC for my FD and love it.

ilike2eatricers

It's mine now muahahaha

PKaBooo69

Dude you kick ***. I've been trying to figure out where to hook in that damn thing. I'm gonna do it in the morning.