Jump to content
SAU Community

Recommended Posts

I am getting an apexi s-afc II fitted (to my 33 gtst) and tuned on a dyno and i was wondering roughly what price would you guys expect to pay for the installation and the tuning since i already have the unit. I was quoted at around 250 for the install and another 200-250 for the tuning. Does that sound about right? 250 for the install sounds a bit high..... but then, i have no idea what is involved in fitting one

Link to comment
https://www.sau.com.au/forums/topic/17877-question-about-apexi-s-afcii/
Share on other sites

Sounds way to dear to me, I fitted my own SAFC, got the wire diagram in English off the American Apexi site, and the tune cost $110. Ocasionally in VIC we have Skyline Dyno days where it can work out even cheaper, see if QLD boys do the same.

Getting my SAFC2 fitted in Bris next wk at Charlie's Motors. Very professional and comprehensive dynoing. Had my previous model fitted there last year and the guys specialise in Apexi gear and skylines. The guy who actually tunes the cars (Charlie's son) owns and races hos own 'line. Takes a good two to three hours to fit and tune right - all up, $250, max, guaranteed! And these guys really know what they're doing... Now, if only he can get rid of that flat spot b/w 4500 and 5500 rpm - finally - and get me those 25 rwkw everybody tells me the SAFC2 will net me!!! Fingers crossed! Located around the corner from the GABBA in the city! Book early though as there's usually a 2-3 wk wait!

Stay tuned!!! I hope this helps!

iijj

Originally posted by iijj

Now, if only he can get rid of that flat spot b/w 4500 and 5500 rpm - finally -  

I Have the same damn thing !! only started recently... according to a well known & respected Skyline tuner it's either:

1. Plugs (fouled, incorrect gap etc)

2. AFM (fouled, faulty)

He tells me that "narrow band" issues like this are nearly always due to one or both !!

Hope this adds, etc.

At most its probably 1 to 1.5 hours worth of work wiring it up and then locating it somewhere you want it. If you know what your doing get them to wire it up and then you can place it where you want and save some money. To tune it, I dont think it would take more than 1 hour on the dyno to tune. Most workshops in perth (that specialise in imports) charge around the $50/hr mark to labor and then around the $110 mark for dyno time. If you get the wiring diagram it probably isnt very hard to wire up at all, as thats all your doing when installing it.

will the SAFC2 remove the standard boost cut at 12 psi ?

Do you have to install a fuel cut defender as well?

Yes i have intercooler FM

Yes i have changed the turbo to Steel wheels.

I want 17 18 psi

What is the most power you can get from a S-AFC2 with standard fuel pump / injectors if they hold up ok?

Has anyone got a SAFC2 and good power figures?!?

What about SAFC (first version) does that remove boost cut too ?!?

guilt toy,

removes the 'fuel cut'. Boost cut is only present with the factory boost solenoid.

The S-afc has a +50% correction availible for more fuel and can accept Z32 AFM. So still able enough for a mild hi-flow turbo.

I have a S-afc 2, my power figures are good.

I wouldnt pay any more than 100 bucks to get the SAFC tuned, and 100 bucks installed. You should considering DIY installation. I did and Its not very hard, and u can pocket 100 bucks =)

THe tune would only take about 10 minutes. Very easy to map on the SAFC!

Originally posted by rev210

there is no such thing as 'boost cut', it's airflow sensed fuel cut. And yes it gets removed.

You don't want to run 13psi with a stock turbo either.

I have tuned my S-afc 2 without a dyno.

what about the first original s-afc ? the one with the dials. Do they do the same job ?

Do they remove the fuel cut too ???

REV210 I've read heaps of your stuff and it looks like you know your way around the underbonnet as much as behind the wheel.. How hard do you think it would be for a relative novice to fine-tune an SAFCII. I understand most of what it can adjust and have owned a VAFC previously so I know a little (more about the monitor mode than the setting mode but willing to learn).

Finally, should I reset my ECU b4 I put the SAFC2 on??? Just put 3" cat-back on last wk... and should I try to find and check/clean my AFM b4, or just see what the mech says???

iijj

Well i got it fitted and tuned today, was 210hp (12psi) before and 231hp (10psi) after. So its on 2psi less boost now and they had to adjust the timing back a bit due to the stock intercooler being pretty well shagged and also not getting much airflow because of the different front bar thats on it. So next stop, FMIC so it can be retuned to its full potential. 20hp gain on less boost&timing sounds alright for now.

On the seat of the pants meter i dont think it feels as good as it did before, but i can't be too sure. Doesnt feel like it pulls as hard as it used to.

iijj,

The reset won't do anything, do it if you like.

Tuning wise; I guess I put the 'graph mode' on and use rev's Vs knock. I take a refference on the log and look at the peak values on the other screen. Take away fuel, take away timing, add fuel add timing.

If the car is pretty stock the afr can be pegged back in the top end on high throttle and on low throttle in the low/mid range I've added a bit of fuel to improve throttle response.

$250 for installation is crazy! Its really not that hard to do, did mine in just over an hour with the wiring manual provided. I would say it should take some who knew what they were doing 1 – 1.5 hours which should only cost between 60 -90 dollars. Couldn’t see how it could cost $250 just for the install and then having to pay extra for tuning.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I had 3 counts over the last couple of weeks once where i got stranded at a jdm paint yard booking in some work. 2nd time was moving the car into the drive way for the inspection and the 3rd was during the inspection for the co2 leak test. Fix: 1st, car off for a hour and half disconnected battery 10mins 4th try car started 2nd, 5th try started 3rd, countless time starting disconnected battery dude was under the hood listening to the starting sequence fuel pump ect.   
    • This. As for your options - I suggest remote mounting the Nissan sensor further away on a length of steel tube. That tube to have a loop in it to handle vibration, etc etc. You will need to either put a tee and a bleed fitting near the sensor, or crack the fitting at the sensor to bleed it full of oil when you first set it up, otherwise you won't get the line filled. But this is a small problem. Just needs enough access to get it done.
    • The time is always correct. Only the date is wrong. It currently thinks it is January 19. Tomorrow it will say it is January 20. The date and time are ( should be ! ) retrieved from the GPS navigation system.
    • Buy yourself a set of easy outs. See if they will get a good bite in and unthread it.   Very very lucky the whole sender didn't let go while on the track and cost you a motor!
    • Well GTSBoy, prepare yourself further. I did a track day with 1/2 a day prep on Friday, inpromptu. The good news is that I got home, and didn't drive the car into a wall. Everything seemed mostly okay. The car was even a little faster than it was last time. I also got to get some good datalog data too. I also noticed a tiny bit of knock which was (luckily?) recorded. All I know is the knock sensors got recalibrated.... and are notorious for false knock. So I don't know if they are too sensitive, not sensitive enough... or some other third option. But I reduced timing anyway. It wasn't every pull through the session either. Think along the lines of -1 degree of timing for say, three instances while at the top of 4th in a 20 minute all-hot-lap session. Unfortunately at the end of session 2... I noticed a little oil. I borrowed some jack stands and a jack and took a look under there, but as is often the case, messing around with it kinda half cleaned it up, it was not conclusive where it was coming from. I decided to give it another go and see how it was. The amount of oil was maybe one/two small drops. I did another 20 minute session and car went well, and I was just starting to get into it and not be terrified of driving on track. I pulled over and checked in the pits and saw this: This is where I called it, packed up and went home as I live ~20 min from the track with a VERY VERY CLOSE EYE on Oil Pressure on the way home. The volume wasn't much but you never know. I checked it today when I had my own space/tools/time to find out what was going on, wanted to clean it up, run the car and see if any of the fittings from around the oil filter were causing it. I have like.. 5 fittings there, so I suspected one was (hopefully?) the culprit. It became immediately apparent as soon as I looked around more closely. 795d266d-a034-4b8c-89c9-d83860f5d00a.mp4       This is the R34 GTT oil sender connected via an adapter to an oil cooler block I have installed which runs AN lines to my cooler (and back). There's also an oil temp sensor on top.  Just after that video, I attempted to unthread the sensor to see if it's loose/worn and it disintegrated in my hand. So yes. I am glad I noticed that oil because it would appear that complete and utter catastrophic engine failure was about 1 second of engine runtime away. I did try to drill the fitting out, and only succeeded in drilling the middle hole much larger and now there's a... smooth hole in there with what looks like a damn sleeve still incredibly tight in there. Not really sure how to proceed from here. My options: 1) Find someone who can remove the stuck fitting, and use a steel adapter so it won't fatigue? (Female BSPT for the R34 sender to 1/8NPT male - HARD to find). IF it isn't possible to remove - Buy a new block ($320) and have someone tap a new 1/8NPT in the top of it ($????) and hope the steel adapter works better. 2) Buy a new block and give up on the OEM pressure sender for the dash entirely, and use the supplied 1/8 NPT for the oil temp sender. Having the oil pressure read 0 in the dash with the warning lamp will give me a lot of anxiety driving around. I do have the actual GM sensor/sender working, but it needs OBD2 as a gauge. If I'm datalogging I don't actually have a readout of what the gauge is currently displaying. 3) Other? Find a new location for the OEM sender? Though I don't know of anywhere that will work. I also don't know if a steel adapter is actually functionally smart here. It's clearly leveraged itself through vibration of the motor and snapped in half. This doesn't seem like a setup a smart person would replicate given the weight of the OEM sender. Still pretty happy being lucky for once and seeing this at the absolute last moment before bye bye motor in a big way, even if an adapter is apparently 6 weeks+ delivery and I have no way to free the current stuck/potentially destroyed threads in the current oil block.
×
×
  • Create New...