Apexi S-afc, what can it do for me?
 

With a stock fuel system, will the s-afc be able to supply the goods? And does it have a a/f monitor built in or do i need to get one seperately? Can anyone give me a good reason to buy this thing?

I would replace the secondaries with at least 720cc injectors.
You will also need to purchase a seperate AF gauge.

I was wondering the same thing. I've read all about it, but why do I need it?

I don't think they come with a A/F monitor.

With an NA, it might pick up small gains in the midrange (maybe about 5hp max).&nbsp It's really meant for turbos (with larger fuel injectors) - this gives it the most flexibility.&nbsp I'd recommend other mods for your NA besides the S-AFC...



-Ted

like what? come on, don't tease me. i know you have some great idea that would provide huge gains, but you're not gonna tell me huh? you're gonna let me buy 2 grand worth of useless mods untill i find out for myself huh? :D

Isn't this information archived somewhere? :)

With any rotyary (especially an NA), you need to open the exhaust - open exhaust usually means more noise! :(

Work on the intake and exhaust first.&nbsp If you can get away with emissions, a header will help a lot.

After that, I would suggest a CDI box - the Crane Cams HI-6 is my personal favorite.

After that, it gets expensive.&nbsp I'd opt with a lightened flywheel and/or streetport motor.&nbsp Either is going to cost you some serious cash...



-Ted

You could get yourself some NOS.:rolleyes:

ted-i would love to hear your .02 about exhaust upgrades.there has been some long discussions here about true duals/collected at rear axle/etc.what do you recomend?i have spoken to a # of diferent people,and have heard a different idea from every one off'em.at this point,i'm leaning towards true duals,with rb presilencers,and running walker turbo mufflers,to keep cost[and noise,i'm told]down.i do understand,that if u run duals,its important that both runs are the same lenght,and,i guess fine tunning the lenght can make a change.anyway,if you have any input,i would love to hear it!thanks!
david

The S-AFC can be used as an A/F gauge. You have to tap the factor 02 wire before it goes into the ECU . Forgot what color wire on the S-AFC harness you uses. But you can moniter the voltage of it under "Sensor Check". It is INT-2.

James

When it comes to NA exhaust tech, I default to Racing Beat.&nbsp If you've never seen the Racing Beat catalog, try and get your hands on one!&nbsp There's a lot of GREAT information, and RB has the experience to back their advice.&nbsp It sounds like you're on the right track - going with a true dual is expensive, but it gets you the most gains of any other type of exhaust system...



-Ted

hehe...they are only $9.50 shipped,i'm gonna order 1 today.thanks ted.
d:D

I have done this, if memory serves me rights it's the blue wire on the S-AFC.

I already have most of the mods you metioned above, I was hoping you would give me a next logical step for my car. My sig was on my original post but I don't like to post it every time. :D

The HI-6 seems like a good idea; does it need to be tuned? or does it just boost the spark?

P.S. please keep us posted on when your web page will be up :)

Nope, any CDI box just needs to be installed - no tuning necessary!&nbsp Yes, it boosts the power of the ignition spark.

I'll keep the entire forum informed on the web page!





-Ted