s4, tii swap. running gray wire for boost sensor instead of tps

ok so i just installed mine in my car. havent turned the car on yet. ecu harness looks great. did it so its very easy to remove safc1

ok . so i am telling people i just installed it. and people are telling me "why?" and saying its a shitty piggy back. though. i have talked to many who run it and they all have said nothing but good things about it. seeing that they are all running stock turbo with mods.
on a side note. i bought an lc-1 wide band controler and sensor

 

the reason people say that is because the safc has extremely limited tuning capabilities having a dedicated standalone allows full control

 

ya i am sure thats the case. i think its perfectly practical for my aplications

 

i went with the rtek 2.0 but thats what I wanted for my goals, you might be fine with the s-afc for you setup. The limit is probably the range of fuel adjustment.

Does the s-afc have the capablilty to store data logs, can it accept the signal from the wideband and log it as well?

 

i had my safc tuned at 13 psi on stock turbo and it ran great but you only can do so much with it!!! but you will be cool itill you wont to make some real power.

i ran a 13.4 with that safc. back in the day with only like 270 something horse power

 

it helps but as you modify the car more you'll need to go standalone.

Having the LC1 will help with the fine tuning but be careful when tuning because you can blow your motor.

Some forum members like to monitor the EGTs but I haven't read up on it too much but it's something to look into.

 

if you have bolt ons on your car for example, walbro fp, exhaust, stock turbo etc. you will be fine, i manage to make 226whp a while back on my fc with a safc2 at 11psi with stock turbo. run with it for a year, it is a great piggyback for the money. keep your afr's at low 11's or high 10's and youll be fine.

 

bah the SAFC is fine if your car isn't too heavily modded (stock primarys for example). my friend did 250rwhp with just an SAFC and a fuel cut defender on his s4 t2

 

I tend to agree with most of what has been said in this thread. One thing is for certain: Spark advance and fuel mixture are the 2 most critical items to keep in check if you're going to have a reliable engine. It is best to have a fuel and spark controller (standalone) that is compatible with your LC-1 wideband input. There are a few to choose from, I personally recommend the Megasquirt MSII standalone. It is affordable, can be purchased as a kit cheaply and assembled yourself (if you have basic soldering skills) or you can buy one fully assembled. It works well with your LC-1 as well as a few other wideband controllers. It has 12x12 fuel and spark tables (meaning there is a full range of custom settings to tune your engine) and it uses Windows tuning software that can be run with a cheap laptop.

If you want to read up more on Megasquirt, here's the link:

http://www.megasquirt.info/

 

i made 330rwhp on that "puny" lil safc2 with rtek 1.8 to control timing my engine just pooped a sideseal due to a loose boost controller line...

 

A few years ago it became a fad to bash the S-AFC and say it was junk. I don't know who started it, but it's ignorant, wrong and annoying.

For a lightly modded car, the S-AFC does a fine job. Have fun with it. Ignore those who say it's pointless or a waste of money. Not everyone needs a fulls standalone.

Also, moving to S-AFC section.

 

Ok so not to bring up up old thread but wanted to ask if safc first edition lol,will support what i want to do. I have never needed one till my 87TII. I rebuilt the motor and want to up the boost. I have a safc i have not hooked up yet but plan to. It is street ported and i have 3" open exhaust and a cone air filter on the afm (better than stock shitty air box) and upgraded FP its a FD pump. I had the primary 550ccinjectors cleaned and tested and want to get boost controller and ,720cc injectors if needed, if the 550cc injectors will not flow enough. I hear some people get 225 hp and others get upwards of 300+? Will what I have suffice? I want to run 12-13psi. Will that suffice with timing? or safc with rtek? I am new to rx7s but not a complete idiot just want to ask everyones opinion. I have stock turbo with ported wastegate that is approx 30mm port. I want max Hp for what I have stock setup. Please no standalone is a must comments. ThanksEveryone Ps not trying to jack a thread just ask a question.

 

for an S4 I think the Rtek might be better. More things to play with. An S5 TII is a different story.

 

mmm.....Rtek.....most of the benefits of the standalone when dealing with stock turbos.....1/3rd of the price

 

and


no S5 TII love.

 

yea......i guess we can't all enjoy the Rtek.