Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: ScuttleRX on November 04, 2003, 07:20:55 PM

Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 04, 2003, 07:20:55 PM
Having a bit of a prob with my power FC installation

Guys at the garage are saying it wont exit the inital idle set up mode, one were you leave it running for 30 mins, with air con on and rear heater etc to get a smooth idle.

Can anyone whos fitted a FC or knows about them tell me how to get it to exit this mode, or whats meant to happen, etc.
Any advice would be greatly appreciated     :)

Cheers

Andy
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 04, 2003, 09:21:57 PM
Updated info:

Car is running but commander wont leave the main screen and just shows the Apexi sign.

Ring a bell with anyone?
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 04, 2003, 09:50:01 PM
The idle learning function does not run once and then it\'s set for life. More like it adjusts all the time through use. Although it does read like this in the instructions!

You will find that idle is good one minute, then one hour down the road sat at traffic lights, the idle hunts for a bit and then settles again, this is normal.

Regards

Max
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 04, 2003, 09:59:09 PM
Car\'s a \'96 Max, its in the garage at the mo so cant get the serial number yet, should be able to tomorrow though.

Cheers for info about idle, like you say manual reads like it happens once and thats it.

Am I right in saying car is ok to drive with just the ecu (temporaily) and no commander?
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 04, 2003, 10:14:31 PM
Yeah, you\'ll be fine running without the commander.

Sods law - you are a crossover year for ECU\'s!!!

Your FD is either a late 8 bit or early 16 bit model......different Apexi units for either :(

If you get the chance, take the cover off and read the model code off the Apexi ECU and if you have it, the original ECU that came out.

Regards

Max
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 04, 2003, 10:20:22 PM
If my memorys right it was a september model so prob the 16 bit one, ill pick it up tomorrow and get all the numbers :)
Title: Apexi Part No.
Post by: Adam on November 05, 2003, 08:31:20 AM
Right.  For a 96/1-99/1 car like yours the ecu no. is 414-Z005  As for the commander, the numbers are the same on all models...414-X001

These numbers are all from the apexi japanese web site.

Adam
Title: Another apexi question - power fc this time
Post by: JayDee on November 05, 2003, 08:58:06 AM
Check that the connector for the hand controller to the ecu is in properly.

Jason
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 05, 2003, 09:11:20 AM
Oops, I stand corrected, thanks Adam :)

Regards

Max
Title: Another apexi question - power fc this time
Post by: Adam on November 05, 2003, 09:19:53 AM
I don\'t know if this can be put some where but here are the part no.s for the power FC for the RX7 FD3S

91/12-96/1   414-Z004
96/1-99/1     414-Z005
99/1-00/10   414-Z006

Comander is 415-X001 for all model
Boost kit is 415-A008

Just thought this would be useful to people

Andy\'s problem has been solved now.  I rang th tuner this morning, and asked them to try another commander, turns out the commander is faulty, so i will be replacing it or refunding him asap.

Cheer

Adam
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 05, 2003, 11:02:06 PM
Cheers for your help guys, like Adam says all sorted now:)

Got to pick her up this morning and is running great :) taking it easy at the mo though cos my exhaust is making my 2nd turbo a little too keen, hitting 1 bar under hard acceleration and giving me a bit of fuel cut. Even driving normally I can feel the difference though, cant wait till I can really plant my right foot :)

Am i right in thinking when i get the commander on i can knock down the duty of the turbo to get it boosting to right amount again, or do i need to get the boost control kit for that?

Or maybe adjust it so it can boost to a 1 bar without fuel cutting?
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 08, 2003, 03:02:56 PM
Welcome to the world of boost creep and spike :)

The cut you are hittng is caused by the boost going 0.25 bar above what you have asked of it. You will have a hard time to stop the spike, but you can learn to live with it.

Up the boost figures on the commander a tad to stop the cut, but keep the numbers under one bar. You could try adjusting the wastegate duty cycle values (down a bit), but experience says this won\'t help.

The size of the stock wastegate is the problem, not much you can do about it.

Regards

Max
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 09, 2003, 03:36:03 PM
can you change the wastegate for a larger one or does that not make a lot of difference
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 09, 2003, 07:39:55 PM
Nope!

Your stuck with it on the stock twins :(

You could put some sort of restriction back in the exhaust, which would help.

You can apparently get the hole made a little bigger, but don\'t think it\'ll make alot of difference.

I would just learn to live with it.....

The only real solution is the single turbo conversion, but thats a bit drastic!

Regards

Max
Title: Another apexi question - power fc this time
Post by: Fishy on November 09, 2003, 07:56:43 PM
I know that Phil G. had a set of twin\'s modified to have bigger wastegate holes/buttons/pennies. Not sure who is running them now!

Dan
Title: Another apexi question - power fc this time
Post by: maximtaylor on November 09, 2003, 08:01:33 PM
erm.... Caz had em for a bit......then George?

Yes! That\'s it!

George Svarovsky has them.... I think.......last time I spoke to him......

Regards

Max

PS Tank??????
Title: Another apexi question - power fc this time
Post by: DRAGON on November 09, 2003, 08:19:12 PM
I have a set of turbos I modified to run non-sequential ages ago, I also ported the wastegate out 2mm. That sorted out the boost spike issues.
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 09, 2003, 09:10:13 PM
Ive seen a lot of people on the american forums have had there wastegates ported.
How many hours labour are we talking to get it done?
Title: Another apexi question - power fc this time
Post by: ScuttleRX on November 16, 2003, 11:05:38 AM
Got the commander now

Fiddled about with the boost settings and duty and lo and behold, 0.8 bar on both turbos, back of the net:D

Set it up for 0.9 bar for a while, didnt think i would notice difference but it definately pulled a bit harder, but I\'ll leave it at 0.8 until WGT set it up properly, dont wanna go blowing it up:D
Title: Another apexi question - power fc this time
Post by: Adam on November 16, 2003, 07:23:13 PM
Glad it\'s sorted now Andy......let me know how you get on at pips......

Cheers

Adam