am i the only 6th gen with safc II?
 

just curious. i talked to the guys at apex'i and they said that as far as they know i am the first to put this on. although they don't know everything. i was just curious.

Have you had it dyno tuned yet, what type of gains do you get

I believe if you advance the timing by 2 degrees and balance it all out with your safc II, you may be able to unleash a monster

well nissan wont advance timing and according to the guy at the shop i go to, he said nissan has to do it. and i only know of one member that has it done and he got it done at the nissan dealer. he must have had a hook up.

I think you are the first. Let me know how is works out on your next dyno. If you don't mind what was the total cost for product and install? Thanks Warren

product-i dont like waiting on the mail(impatient) so i bought it at the local nopi shop for 300.

installation- 125

tuning- 120 first hour 80 each additional.

all in all i didn't think id be spending this much. i think this probably will put me over the 10,000 marker as far as crap ive done to my car. this hurts just typing it in. ouch

Thats not that bad. How long does it take to tune? Let me know how it goes. I am going to pool now. Thanks Warren

Sorry guys, but just a quick question: What's a safc II? I'm not very familiar with this acronyms...

Supposedly the ULEV ECUs are locked and won't accept the timing advance from the Consult.

I wasn't either but am now:
http://www.monkeywrenchracing.com/apexi_safc_ii.html
:google:

S-AFC's are useless with our cars. I had an a 2001 Toyota Celica GTS 6sp and had it tuned with the S-AFC... it gave it maybe 4HP extra to the wheels but over time the ECU did what it wanted too due to the mapping of the timing and other controls in the ECU programming. Now days cars with continuous variable valve timing using an S-AFC to manipulate the air to fuel ratio and any other "changes" only takes effect for a short limited time. Over time the ECU learns and reads rich or lean and does what it wants to "think" it is being most efficient. Just thought I would throw my 2 cents in from my experiences.

Whats ULEV? Im not familiar with that but I had a mech at my local dealership advance the timing 2 degrees and it stayed. Theres a car on ebay for sale with the safcII and Emanage installed so you obviously are not the first person to do it. Why would he need both?

Ultra Low Emissions Vehicle, meaning it has wideband 02 sensors. But I am happy to learn that the ECU lockdown it isn't the case on the 2k4.

So the car has a built in wideband 02? Would that any more beneficial than a car without one for tuning?

I assume you have advanced timing on your max. What differences do you notice Who did it, what was the cost, and you think a SAFC II will help out your car throughout the power band or just top end?

hey ramberg, i think you should get a SAFC too, 12.x is a LITTLE rich no?

Tuned Apex'I safc II on 6th gen max. check it out.
 

http://memimage.cardomain.net/member...65_63_full.jpg
the green was my base line from about a week ago.

http://memimage.cardomain.net/member...65_64_full.jpg
and this dyno here was done in 3rd gear.
the blue line is the base from last week.

as you can tell the temp that was registering today was 105 and when i did my base was only 95 and i still saw good gains. With that said they want tme to come dyno again on a cooler day so ill let it cool down for a month or two and go back. they said i will deffinatly see higher gains.

http://memimage.cardomain.net/member...65_65_full.jpg

and here is a pic i took at the shop for all you non-believers out there.

Am I reading this right, you got a 9HP gain, or 3.8% increase in HP? What do you think this will do for your 0-60 time or 1/4 mile?

How much did you spend on this? I don't think I'm seeing the ROI of this mod.


My opinion doesn't take anything away from a good looking Max.

what do you mean ROI?

SWEET Maxmale! I didn't think you were going to the Dyno until later. The numbers look awesome! That's a terrific gain with that mod and it looks cool as can be. Great job with the dyno, that will probably be my next mod. I was a little skepitical when I saw a few people critique it, but you proved them wrong! How long did it take to tune? Nice job, those numbers should compute out to some nice crank horsepower.........PEACE OUT

thanks i should be right at 300 crank give or take a few. also the base line dyno had a correction factor of 5 and todays had no correction. so the numbers produced were in 105 degree weather so the gains should actually be more. it took about two hours to tune with a couple of runs and thirty minute cool downs between.

ROI = Return On Investment
FYI = For Your Information
LOL...

not only a hot looking max but thats a sweet red fire cobra in the background

Sweet cuz you know someone is gonna pop in crying "Its fake".

no it is definatly not fake that is there project car it has 600whp it's a freakin monster.

as far as the (ROI) is concerned. i dont think you no what your seeing either. this product will pretty much help me with every mod i put on this car. you see you can put on a y-pipe and get well say 7whp and i can put it on and get say 10+ because i will be able to go in and tune my afr to work with my y-pipe and you cant. and i should be able to do that with pretty much every performance mod. so i can honestly say that it is a good investment.

Awsome man! Congrats on the gains. Probably best mod for power you have done so far.Couldnt they have tuned a lil closer to 13:1 in the topend? Seems like theres still more power that could be had from tuning.

297hp at the crank maxmale....... real good numbers playa, way to rep a 6th gen.. keep it up.

Another satisfied customer :doublethu ...Get some headers and tune some more :wiggle:

next up. ported intake plenium.

anyone know what these #'s would be if they were corrected. if you notice in the picture's top right hand corner the CF is 0. and the last time i got dyno'd the CF was 5. just curious. i wanna be the first to pass the 300 barrier N/A (crank anyways) unless someone else is already there...

These are great looking numbers. I think I know what my next mod is going to be. I might have to come back down to SC soon do get it done. I would stay a extra day but I have to drive to Mass. for the labor day weekend and I need some rest. Keep up the good work. P.S. Do you think that they can do this all in one day?

if they got the car in the morning i'm sure they could. took about 2-3 hours to install and 1-2 hours to tune.

I will let you know before hand if I can stay a extra day. Thanks

if your wanting to get it done here well need to schedule and appointment. if you need you can stay here.

That shows a smoothing factor of 0 but with SAE correction.

Also, these cars (6 speed) are better off dynoing in 4th gear, not 3rd on a dynojet (inertia dyno). And you have to get to about 250whp to equal 300 crank hp.


The SAE correction factor accounts for the temperature differences.

what is smoothing. and why was my first a 5 and these were 0

Based on the readings from the A/F graph, those gains did not come from the SAFC. Notice the difference in the air fuel occuring only after 4000rpm but the torque difference is mirrored from the very beginning. All I see here is that you had a better day at the dyno.

so do you think there is still room for improvement with the safc? should i try 13.5 a/f mixture?