What do Apexi make that would be fitted to a N/A car?

What do Apexi make that would be fitted to a N/A car?

Author
Discussion

nicecupoftea

Original Poster:

25,295 posts

252 months

Tuesday 6th March 2007
quotequote all
Just put a deposit down on a Eunos Roadster, should be fun.

It's got some weird box marked Apexi that the guy who was selling it said was something to do with the air filter confused

Any idea what it might be? AFR control or something?

vixpy1

42,625 posts

265 months

Tuesday 6th March 2007
quotequote all
Probably an Safc, which is basically a little box to set up the AFR's

Stu R

21,410 posts

216 months

Tuesday 6th March 2007
quotequote all
could be an Apexi induction kit if it's something to do with an air filter.
They also make metal airboxes / cold air intake surrounds, so that's another air filter related possibility.


Edited by Stu R on Tuesday 6th March 01:18

jonner

142 posts

207 months

Tuesday 6th March 2007
quotequote all
Get an rsm for it..

Delimites the car..

slinky

15,704 posts

250 months

Tuesday 6th March 2007
quotequote all
jonner said:
Get an rsm for it..

Delimites the car..


Or, if it's the 1.6, pop the speedo out and take the limiter screw out of the back..

slinky

ae111sr

169 posts

224 months

Tuesday 6th March 2007
quotequote all
Sadly not much these days - I'd heard they had gone bust again

nicecupoftea

Original Poster:

25,295 posts

252 months

Tuesday 6th March 2007
quotequote all
So what is the point in it then? Don't want to change the A/F mixture particularly!

vixpy1

42,625 posts

265 months

Tuesday 6th March 2007
quotequote all
nicecupoftea said:
So what is the point in it then? Don't want to change the A/F mixture particularly!


More power by leaning the mixture out

NiceCupOfTea

Original Poster:

25,295 posts

252 months

Thursday 8th March 2007
quotequote all
Ah. It is indeed an AFC, I have a manual on Japanese rolleyes Anybody know if you can get an online English version??

vixpy1

42,625 posts

265 months

NiceCupOfTea

Original Poster:

25,295 posts

252 months

Thursday 8th March 2007
quotequote all
Ah thank you!

It still means nothing to me laugh I think I just won't touch it...

nicecupoftea

Original Poster:

25,295 posts

252 months

Thursday 8th March 2007
quotequote all
OK, took a couple of pics as it doesn't seem to be the same as any on that link:




When you start the car it cycles through the LED indicators on the front and then settles at the bottom. As you can see the dial is set to -10. What do these numbers relate to? Is this set to ultra safe/conservative values? What happens if I turn it up? Can I safely? Anybody shed more light on what I can do.

The car feels sluggish at the moment but it is in desperate need of a service (can't confirm it's had a service for nearly 2 years yikesyikes although it's only done 4k miles in that time).

Thoughts?

Stu R

21,410 posts

216 months

Thursday 8th March 2007
quotequote all
sounds patronising but don't bother fiddling if you're not familiar with them.

The afc = air fuel computer, you can adjust your AFR at given rev increments, not sure what they are on the older ones. I'm sure most local tuners will have experience of them, vixpy too I imagine
SAFC I'd be able to help more with, never had a look at the older AFC but I guess the principle will be the same

vixpy1

42,625 posts

265 months

Thursday 8th March 2007
quotequote all
Like Stu i've never dealth with an older AFC, only the SAFC. Give me time and i'll find someone who knows what the buttons do

Stu R

21,410 posts

216 months

Thursday 8th March 2007
quotequote all
At a guess I'd say the percentage bar relates to the injector duty, and the dial relates to how much fuel it piles on, and the reason yours is feeling sluggish is that there's not enough fuel getting through, but I'm not sure on it. I'll check. apexi USA usually have all their manuals available online for the SAFC's, maybe the AFC's if you're lucky. I'll ask a mate who I know used to use one before going to SAFCII.


Edited by Stu R on Thursday 8th March 23:59

nicecupoftea

Original Poster:

25,295 posts

252 months

Friday 9th March 2007
quotequote all
Guys, I really appreciate it!

I understand what it's doing and I've had a read up, but it only seems to have the one dial so I can't adjust it over different RPM ranges. I am wondering if they are %ages having read the manual for a later AFC - so -10% means it is down on power. Tempting to adjust to 0 and see what happens, but will get it service & checked over first.

If anybody can find a manual or further info there's definitely a couple of virtual pints in it for them

Stu R

21,410 posts

216 months

Friday 9th March 2007
quotequote all
done a bit of googling and it seems 0 should be factory settings. Rather avoid what could well be internet hearsay myself, just unplug it and it should hit factory settings, if it feels up on power you know where the problem is

As said I'll get back to you with something concrete

nicecupoftea

Original Poster:

25,295 posts

252 months

Friday 9th March 2007
quotequote all
Thanks Stu beer

NiceCupOfTea

Original Poster:

25,295 posts

252 months

Friday 9th March 2007
quotequote all
Can't seem to find any more about it without a model number. Apexi don't even seem to have an email address on their website so have guessed a customer.services email address rolleyes

Have studied manual and I think there are just a couple pages on its operation rather than the set up / wiring up stuff, so I may have to try and get it translated somewhere!!

NiceCupOfTea

Original Poster:

25,295 posts

252 months

Friday 9th March 2007
quotequote all
Just found this:

www.fd3s.net/afc_manual_gen1.pdf

It's a really early S-AFC manual, but the layout is very similar to the Jap one I have in front of me. The Diagrams correspond in section 5 - which is how to use it.

What it doesn't explain is what the lights are for, I guess it may be for setting up...

Will set it to 0% later and see if it's perkier