KA-T, just an SAFC, and fuel delivery ??

[sofo259]

i may start building a KA-T, the only thing im worried about is, how am i going to run it on a stock ECU, will an SAFC tune it good enough w/o a wideband o2 ??? and what i will do about fuel delivery... walbro fuel pump enough ??

i will have bigger injectors, brian crower cams, brian crower valve set, etc etc.. so i can rev to like 10k lol

opinions on my options, and keep in mind, i drive this car everyday, and still will..

[babowc]

you need wb02 to tune it.

you will never rev to 10k with ka.
lol

a stock ecu on safc alone, dont expect to make ungodly amounts of power.

maybe 220 at the wheels with a GOOOOD tune.
you cant pull/add too much fuel w/ safc b/c it's basically tricking the ecu to think that its getting the air that its not.

also, extraneous tuning with safc puts the timing maps on a different scale.

basically, dont try to make alot of power with just a safc.

[sofo259]

alrighty... what else can i do to make more power, besides a $2000 ECU, and stand alone is expensive as shit..

[1800DialKyle]

Fcon-v pro is only like 1300 bucks.
If you want to build a good motor stand alone is the only way to go. If you are building the heart when why would you cheap out on the brain?

[Dominic49]

pssst megasquirt... have it built and in car for under $400 standalone on the cheap FTW

[SamCar]

Dude w/a wide band and safc you can make decent power. Idk what Babowc is taking about you can make probably make 280 - 290 with a good tune.
www.Ka-t.org But he is right about the RPM to 10K thing... you wil not get there maybe like 7,5K-8K, even then why? Torque is what you want with the KA right?

[hellfire]

What are you guys talking about with the SAFC?

You can make however much power your turbo setup allows. SAFC along with almost every other piggyback out there modifies the MAF signal to give you more fuel. The only thing it doesn't have is a way to control timing.

But don't let people make you think that you need AEM or Haltech or something for a good tune. Shit, the first 9 second VR4 did it with a ARC-2. Which only has about 4 nobs for tuning.

You obviously you can better fine tune something with AEM, but Emanage, MAP ECU, MAFT-Pro, are plenty good for an every day tuner.

You can pick up an Emanage for about $200 bucks. You can log everything, and control timing. You can either control injector pulse widths, or modify the MAF signal. It will even read your WB02 and log that as well.

Plus with the Ultimate, you can run MAP, which you can just use a GM MAP sensor. Then you will eliminate the MAF completely.

Tyler

[babowc]

what i said about safc was that by 'tricking' what the ecu sees, in terms of air flow, the ecu is not on a correct TIMING MAP.

im not saying safc cant make good power, im saying without proper timing control, dont expect to tune a ~150 CHP motor to 2xx whp with just safc, injectors and mafs.

there have been discussions on the effects of SAFC air flow altering and the timing map being changed.

the timing map is changed minimally when you're not making drastic changes, but when you ARE, you'll definitely be off time.


if someone still doesnt understand what im saying, i'll post up a link later.


btw.
safc can only SAFELY control +/- 50% injectors sizes.
so on KA, stock sizes are 270cc which means you can SAFELY control upto 540cc injectors.

however, there have been cases where maf signal was altered and by doing so, people were alotted to run bigger injectors. also, Lance, from JGS Turbo @ KA-T.Org controlled 740cc injectors with a piggy back. iirc SAFC2.

[ct9a gsr]

I daily drive a KA-T on the stock ecu + safc neo... drives completely fine with no issues. =D

[plv]

dont forget a fpr

[babowc]

you dotn necessarily need a fpr if the stock one is fine.
stock is 1:1 iirc.

[babowc]

I daily drive a KA-T on the stock ecu + safc neo... drives completely fine with no issues. =D

ill respond to that after i get back from gym

[matts13]

you can always get a daughter board installed into the s14 ecu with a safc you will be good to go.

[v-empire]

ill respond to that after i get back from gym

you must be jacked!!!!


what wa your dogs name that died? you never anwered that.

[babowc]

oph iforgot to check back.

anyways.
what are you rrunning ct9a??

my dogs name was ddomi.
if you install db, you'd just fine tune with the safc.

[ct9a gsr]

basic ka-t setup on a real gt2871rs, 370cc's, walbro 255, nismo fpr, and other random crap. I have 550's sitting in a baggie but don't feel like using them 'til I get a wideband or on a dyno.

[s14unimog]

I ran an SAFC I on my KA-t for 2 years with minimal problems (remember its still a ka-t). But like who ever said, you will run into timming issues. I went back to about 17 BTDC and that helped but still made some nosies sometimes.

T25, 370's, SAFC, 300zx fuel pump, FMIC, exhaust, and good tunning.

221whp, 242rwtq daily driven

[JDM Steve]

nice #'s ^^

[babowc]

basic ka-t setup on a real gt2871rs, 370cc's, walbro 255, nismo fpr, and other random crap. I have 550's sitting in a baggie but don't feel like using them 'til I get a wideband or on a dyno.

what are your #s?
^looks like a basic t2 series setup.
minus the gt 2871rs.

anyhow, im sure youre not running high boost or alot of power as youre still on 370ccs.

like i said, safc2, 1, neo is fine for low power apps.
if you start going up on boost, you'll see problems here and there.

ill find the thread about it.

[ct9a gsr]

i haven't dyno'd the car. I consider it a toy car to play with... nothing that caters to racing, really. I have my grocery-getter for that.