As I am rounding the end of my B18b build, I am realizing that fuel will most likely pose a minor problem in gaining ultimate performance. I have the stock computer and haven't really done much with the fuel system. I called RC Engineering and they gave me an injector size for my current setup but now I am beginning to question if that would change if I added an AFC controller and fuel pressure ragulator.

My question is this. I have never done anything with AFC controllers or anything like them. Can someone like me actually use the controller without getting completely lost? Or should I just get the car running and have some dyno/tuning time done? I know a bunch of you guys have these comtrollers so advice would be awesome.

 

when u get an SAFC u can install it by urself (very simple to do). it's very simple to use after u read the manual a bit and play with it a few times. After u install it just make sure u have it on the right settings specified in the manual (i.e. throttle pointint up, in:06 out: 06, Pressure sensor, etc.) just leave all the setting at zero for now and then get it dyno tuned.

I have an SAFC on my LS right now. i did some minor street tuning with it (just enough so i can get the car idling pretty good cuz i recently installed some cams) im running stock injectors but upgraded to a B&M FPR

 

You should deff. get to a dyno, its hard to street tune with out a wideband. Are you going turbo or stay N/A? because if you are staying N/A and you have not bought the safc controller look into hondata, its really cheap for n/a cars with many more features.

 

I want to go boost but I won't have the money for a long time. I build the engine with mild compression of around 9.5-9.6. The engine has been drastically altered. Bored .020, forged rods and pistons with ARP bolts, P&P head, cams, springs, retainers, throttle body, intake manifold, type-r oil pump, and i'm probably forgetting some stuff. What should I do?

 

BUMP for some more suggestions.

 

an S-AFC allows you to adjust how much fuel you are getting in 500rpm increments so with a good air fuel gauge you could also get a basis to your settings before dyno tuning... i've never heard of any N/A car running out of fuel in the top end until i came here though, it kind of suprised me...

but i can also say you won't find a better price on a new one than on ebay, not even dealing direct unless you've been buying these by the hundreds...

 

Well how should I bump the fuel? Should I just do injectors and and a regulator? Do I really need an AFC without a turbo?

 

OK. If no one has anymore advice, at least tell me what controller to get. I'm building and LS....NON-VTEC. I've called some pro's in CT and I think I'm going with 310 injectors, fuel pressure regulator, and the APEXi unit.............but which one?

 

for an LS motor, u need to get either the Apexi SAFC or the SAFC II. both are the same except that the SAFC II has a few extra functions and comes in two color: black or blue face, while the SAFC only comes with a Blue face. u can get them cheap on ebay.

dont get the VAFC or VAFC II. those r for VTEC motors

 

Nice. Thanks alot for the tip. Wish me luck. I've never done any computer tuning before.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Steak84SS &raquo;</TD></TR><TR><TD CLASS="quote">I want to go boost but I won't have the money for a long time. I build the engine with mild compression of around 9.5-9.6. The engine has been drastically altered. Bored .020, forged rods and pistons with ARP bolts, P&P head, cams, springs, retainers, throttle body, intake manifold, type-r oil pump, and i'm probably forgetting some stuff. What should I do?</TD></TR></TABLE>

Personally I think that 310's are overkill with that setup, especially since you are planning on running an SAFC with which you can not trim back the injector duty.

 

if they are overkill, what size would i do and why?

 

Just ordered the APEXi S-AFCII from Ebay. Saved me a hundred duckets. Never used Ebay before other than price shopping.