I recently bought an 03 G35 AT,
so far my mods are CAI but exhaust and plenum is on the way.

I had a lexus sc400 with intake and exhaust previosly and had installed apexi S-afc,
and with dyno tunning I gained around 20 rwhp from this mod.

Can this unit be installed on the G35 and has anyone done this?

 

i know people have used the apexi safc II on the g but dunno about the safc though itll prolly work

 

it will work but i wouldnt use it.

 

I have it and it works fine. Piggy back system such as the emanage and others are mor epopular just because of the tunning capabilities. The safc will be fine and will get the job done.

 

I am planning to get SAFC as well because I am going to put headers, MREV+ 5/16spacer, TP and TD exhaust on my car...
I heard to get the max out of all those parts I would need to readjust the AF ratio...

Now I am wondering is it possible to tune it with out doing it on dyno because I don't think there are any dyno place over my area....
thx

 

Sure it is, buy yourself a wideband with logging capability and you'll be able to tune yourself.

 

i would get it tuned on a dyno for sure...you can mess up your engine to easy with your a/f ratios...

 

^
So how much WHP are you running with all those mods???
If I really can't do the tuning on dyno should I just leave it?
Thx

 

You can tune it just fine on the street with the right wideband but its going to cost around 400-500. Tuning on a dyno and the street is different but not by much, if you tune on the street just aim for a safe a/f ratio as stated and you'll be fine. However, unless you already have the equipment, the cost to hp gain may not be worth your time for all this work unless you have bigger plans in the future like FI that may take you in this direction anyway. GL.

 

I dont see why a AFC couldnt be installed on any car so a G shouldnt be any different. I am curious how you happen to get 20rwhp on your SC400 though...on the Supra TTs, adding a S-AFC after going BPU usually yields +/- 15-20rwhp but that's on a turbo car...

Have ppl seen similiar results on the G?

 

I gained 50 WHP with my S-AFC II

Something was way wrong with my car when we got it dynoed it was only putting down inbetween 190-200 WHP i dont rmemeber exact numbers. After the tune i was in between 240-250 with the exhaust and intake. I havnt had it retuned for my 5/16 spacer yet.

So in my case it really helped me out.

 

I am new into these...
Can you explain what do you mean by "right wideband??
Thx

 

and you are able to run high 13 with those mods....
That's pretty nice...

 

Not all widebands have a datalogging capability and its too hard and dangerous to try and tune it at WOT while driving. So do and internet search for wideband controllers and several will appear. Then just read and find out which one works for you. They all do the same thing, some just have different features.

 

was that sarcasm...?