I thought we could use this setup in our cars w/o a problem. I have 550s ordered and i have a safc. The shop is gonna put in the injectors either tomomrow or the next day (finally after 4 months of rebuilding) but regardless i dont see why we cant use the safc to turn the injectors down for off boost operation, and then tune them into "high" mode on the safc?

Have you read the specifics for S-AFC's?


They can fatten or lean any injectors up to 50% of its flow capacity. Our stockers flow 235 cc's. Half of 550's are 275. At 275, you're over stock 235 cc flow capactity.You're over. It may or may not work with two possibilities:

1. It works fine. Since it's been said that our ecu can handle injectors up to 310 and by trimming the 550's under that amount, you'll be okay since 375 is under 310.

2. It won't work. Irregardless of what I said in "1," the ecu will go bonkers over the large injectors that large and won't be able to idle correctly. The S-AFC doesn't have a trim setting for injectors under 100 rpm's. You'll be angry. =-(

Do I know the absolute answer here?....nope!

Jason
98' Eagle Talon ESi-T
Mitsu Super 16g Turbo(HRC)


http://springfielddsm.homestead.com/JasonsPics.html

I have no idea about injectors, but I will tell you what I know....

My ECU seems to idle just FINE at 50-60psi fuel pressure... I
guess that says quite a bit about how TOLERANT our ECUs are!!!

Guy
RS_Guy



13.9sec @ 105mph passes
w/ Blown piston rings,
on Stock Internals
at 10psi Boost....

I plan on getting the Hahn stage 2 and a SAFC. i'm not upgrading internals and i plan on running 7 to 10 psi. will i need bigger injectors and if so what size will be sufficient with this setup without causing the idle problems?

Chris
Project RS
http://klipzracer.homestead.com/index.html
"I just got sponsored by Bad Karma Motorsports!"
chrisdishmon@hotmail.com

Well,

Doing the math, I think the main problem you will run into is at idle. The AFC does not adjust below 1000rpm and our cars are set to idle at 800-900rpm. The base fuel pressure will have to be set down to around 28psi or less for this to work with an AFC. I am suprised no one has tried to explore the new HKS Fuel Controller with idle correction option. Now, if you can make it idle, I think you can get away with it. At 15psi you would not have to run more than 60psi for fuel pressure which is a good thing. One of the only side effects I see would be a loss in gas mileage as you go to larger and larger saturated injectors. Guys, any more input? These of course are numbers from my head and not real world experience as the truth is if you do get the 550's installed you will be the first to do so that I have heard of.

MuRiX
97 Eclipse GS HRC Stage II
And a whole lot of other mods...
89 Accord LSi - yes it's mine :(
http://murix.home.icq.com/index.html

I am considering the HKS for just that reason. It does everything the AFC does (+- 50% adjustaments) and more (rpms points more adjustable and seperate idle control from 100-1600rpms) for the same price and doesn't take up but about half a din space. I'd miss the telemetry and nice display but oh well I want a indash flip up TV anyway. I dont think anyone has tried it because it hasn't been out very long and its taken people so long to figure out the AFCs that most just stick with it (lets be honest its the display).


Stan2gnt
Stan2va@aol.com
95 Talon ES-I-NOS but T soon!
http://members.nbci.com/FlyEsi/home.htm
You too can have a never updated site complete with old info and dated pics!

If you want a flip-up TV, you might also consider adding to that the HKS CAMP. (if you're rich :-) )
Now no one said that its cheap...

http://www.alamomotorsports.com/hks_camp.html

BUt it does make a cool looking gimmic in your car...

Guy
RS_Guy



13.9sec @ 105mph passes
w/ Blown piston rings,
on Stock Internals
at 10psi Boost....

Does anyone have any more information regarding this? A link perhaps?



l e o n

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

Air/Fuel Ratio Correction Function
Controls air/fuel ratios through airflow meter or pressure sensor
Range - 50% rich to 50% lean from the factory baseline settings
Output can be adjusted in 1% increments
Eleven points of adjustment between 650 and 8000 rpm, these points can be arbitrarily moved in 50 rpm increments
Response Correction Function
Engine response can be adjusted through airflow meter/pressure sensor
Range - 1m/sec to 100m/sec
Six points of adjustment between 650 and 5000 rpm, these points can be arbitrarily moved in 50 rpm increments.
First in the industry to offer this function in a simple airflow correction device
Idle Correction Function
Idle mixture can be adjusted 50% rich to 50% lean in 1% increments within the idle range (650 to 1500 rpm) from factory baseline setting
This adjustment is made independent of the other eleven points of mixture adjustments in the air/fuel correction function
Electronic Idle Stabilizer Function (EIDS)
This automatic function prevents engine stalling or stumbling in some airflow meter vehicles which use blow-off valves discharged to the atmosphere when throttle is released
Base of Adjustability and set-up
This device is very simple to set-up and adjust
The head unit is adjusted through three control knobs
HKS recommends tuning for this device be done on a chassis dynamometer with use of an accurate air/fuel ratio measuring device


the best place to buy one and for info and pricing is www.alamomotorsports.com

MuRiX
97 Eclipse GS HRC Stage II
And a whole lot of other mods...
89 Accord LSi - yes it's mine :(
http://murix.home.icq.com/index.html

Any pics of how it looks?

Damn...I just recently bought an APEX-i SAFC...Does the HKS have the fancy light show (display?) :)


l e o n

I bought mine too, but the price is so good I might just resell my AFC.

It's funny 'cause this is the place that's doing my Stroker Kit.

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

LAST EDITED ON 14-Mar-01 AT 05:40 PM (PST)

No fancy display. It looks like their EVC boost controller. This Alamo used to be linked to the one in texas doing your stroker kit. I'm not sure if they are still linked anymore. When I got my springs from them they had several Texas locations then the site which we're speaking of had this big move to Luisiana a few yrs ago (give or take a yr or two) and is just a big parts warehouse operation.


Stan2gnt
Stan2va@aol.com
95 Talon ES-I-NOS but T soon!
http://members.nbci.com/FlyEsi/home.htm
You too can have a never updated site complete with old info and dated pics!

I have to get this.

550cc here I come!!

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"

You can make special RPM points in the S-AFC through the settings, say if you needed another correction between 4000-5000
Also, at Idle the AFC corrects for whatever you have set at 1K, or you can put a special RPM point in @ 800rpm

If you adjust -50% @ 1k, it sets a correct value of -50% @ 800rpm (or anything below 1k) because it has no other values below that, so even though you didn't "set" a -50% correction value at 800rpm, it still corrects for -50% because -50% is the forst value it sees

>Well,
>
>Doing the math, I think the
>main problem you will run
>into is at idle. The
>AFC does not adjust below
>1000rpm and our cars are
>set to idle at 800-900rpm.
>The base fuel pressure will
>have to be set down
>to around 28psi or less
>for this to work with
>an AFC. I am suprised
>no one has tried to
>explore the new HKS Fuel
>Controller with idle correction option.
>Now, if you can make
>it idle, I think you
>can get away with it.
>At 15psi you would not
>have to run more than
>60psi for fuel pressure which
>is a good thing. One
>of the only side effects
>I see would be a
>loss in gas mileage as
>you go to larger and
>larger saturated injectors. Guys, any
>more input? These of course
>are numbers from my head
>and not real world experience
>as the truth is if
>you do get the 550's
>installed you will be the
>first to do so that
>I have heard of.
>
>MuRiX
>97 Eclipse GS HRC Stage II
>
>And a whole lot of other
>mods...
>89 Accord LSi - yes it's
>mine :(
>http://murix.home.icq.com/index.html
>


Wyatt Leras
http://www.turbogs.com
98 Eclipse GS Star Stage 5,000 Turbo kit

.

have fun!

so which is better?

Apexi AFC
or
HKS AFR?

I bought the APEX for a good deal...and kinda partial to it cause of the fancy light show :)


l e o n

...The HK$ S-AFR. It provides 12 additional increments of correct motor operations seperate of the 11 different increments used just to richen or lean your normal fuel curve. The Apex-i S-AFC on the other hand provides maniold pressure(for some cars) in a meter or graphical display Inj. Duty Cycle, rpms, new A/F%, and a beautiful display. The HK$ S-AFR is the size of a stereo din and can fit almost anyway unconcealed (since it isn't emissions legal but neither is the AFC). If one has the money they would both be beneficial (maybe overkill)

Skrilla
'97 Base Talon NA
"Technology: The Only Replacement for Displacement"
"Peace and Turbo Grease"