Rice_cooker

Okay I have a 1989 RX7 TurboII with a T4 60-1 turbo, FMIC, 50mm wastegate, Racing beat exhaust.
I am running 850cc primary and secondary RC fuel injectors, Power enterprise 255 fuel pump(jspec walbro pump).
The car is all setup and ready to go, the exhaust, fuel system and everything is ready to support the power but I don't have the money for a Haltech right now which is what I want.
I would like to drive the car and I know I won't be able to drive the crap out of it with a MAF on this huge turbo and all but I went and got a Apex AFC Neo anyway.
It's installed now and I need assistance with getting the settings in it.
I did all the basic stuff but i don't know what to do for air and fuel correction.
What kind of MAF do I have?? Is it considered a flap or is it a Karman?? It's the stock S5 bullet one.
The car starts without problem and I can gently rev it up but obvoiusly I can't drive it on such a big turbo without some fuel tuning.
I am searching right now on the forum but to many irrelevant threads pop up when I am searching for AFC neo and tuning and all that.
Can anyone help? Either with some tuning maps or a link??
Or maybe someone that can tune the thing for me??
I'm in Los angeles.
Thanks for your time.....

Funkspectrum

iTrader: (5)

uhhh...I'm not sure that the ne AFC Neo will support those mods bro....

I'd imagine that you would probably need an EMS that does fuel and ignition....

The AFC is only a piggyback fuel controller....

Rice_cooker

I know exactly what the AFC is.........I'm familiar with using them.
I have seen the SAFCII installed on 2 of my buddies cars in the past 2 years. Both cars were FC's rocking a 60-1 turbo.
You don't get the full potential of the setup but they both made over 300 to the wheels with a basic street tune with a wideband in use on the initial setup.
The new AFC Neo has finer tuning parameters but I know it's nothing crazy but it will work for now.
And no both of the other cars have not blown up, they ran fine till they were sold. One was on 10psi and the other was at 14psi. Both were driven about half a week, you have to trade off after all. Half a week with the economy car and half with the fun car......LOL
So yeah.....I got the AFC because I have seen it used with large turbos and upgraded injectors on a budget.
Someone help!!!

Rice_cooker

anyone???

classicauto

iTrader: (3)

Well do you have wideband? I don't see one on your list.

If the answer is no, then baby the car (or tow it) to a local tuner with a wideband and see where its at.

I could tell you to take 15-20% out from 1000, to 3000........but how the helll do I know how rich you're running

You're going to need a wideband to tune it at all........I don't think anone on here will be much help without knowing your AFRs.

88rxn/a

iTrader: (6)

yeah a wideband is almsot a MUST....when i tuned with my SAFCII i just cranked it UP (+40's) the drove it (with a wideband) and got the boost i wanted then tuned it down to my likings (11:5 VIA WIDEBAND)...im in no way a tuner or advise tuning without a wideband, or maybe even a EGT? BUT id suggest geting a second opinion or a tuner to do it....BTW, sounds like a nice setup!

Juiceh

iTrader: (4)

So they realized how dumb running a turbo like that without a real EMS was and sold the car to some other poor fool to have it blow up on... nice..

With the money you spent on the NEO you weren't that far away from a haltech, all you would have had to do is save for a couple weeks and you would have had enough for a haltech. Provided you have a job of course. Hell you might have been able to buy a used haltech for the money you spent.

Can the NEO control ignition timing? NO. Does it have the ability to tune a dellicate boosted rotary accuratley with 16(OMG 4 more than the SAFCII) control points? NO. A Haltech has over 1000 control points, can control ignition timing\advance. This accuracy and ability is critical for a high boost rotary. Remmember, all it takes is one ping....

Sure, it may be possible to run this setup this way but NONE of the big turbo vets would ever do it with a piggyback on their own cars. These things are designed for stockish cars, not ones with larger turbo upgrades. I have been told a few stories about these on boosted rotary cars from reputable tuners, and have my own first hand experience.

I know I may sound like an ******* telling you this, but I am trying to save you an engine and some $$. Sell the NEO and save for a real EMS.

Rice_cooker

Well. thanks for pointing out the obvoius and no I don't think you're an *******....I haven't met you yet to determine that....LOL
The cars my friends had witht he SAFCII were the daily driver for one of them for well over a year with no problems and plenty of power. At least enough power to play with mustang coras and Z06's. Yes I know an EMS is the only real way to do it right but the AFC Neo was cheap, I got it from a shop that has me sponsored so it was less than a couple hundred bucks to me. I can't get an EMS just yet with all the bills to pay and gas as much as it costs but I wuill get one as soon as I can, may be 3 or so months though.
Anyhow I understand the importance of a wideband. My only interest was in seeing if anyone else had a similar setup for me to steal the settings from so I can at least drive it to a shop or have it running.
I'm not trying to get it on the streets so I can start beating on V8's. I just want to be able to drive it down the street.
I can say this much it is running rich at idle with 4 injectors all at 850cc and the fuel pressure at 42psi.
So that's where I am at right now.
thanks for the input

classicauto

iTrader: (3)

well how far is the local dyno and do they have a wideband?

If the car runs, running nice and gentle for a half an hour pig rich won't do too much more than foul or nearly foul your plugs depending on hiw rich it really is.

Just don't boost it hehe

88rxn/a

iTrader: (6)

IF you stay out of boost you could be OK.....thats IF your having it tuned by someone and your just driving down the road a mile or two...I personnaly cant say buy a haltech or a standalone becuase im running a Rtek and SAFC myself.......but whatever you do just be safe and easy on it untill its tuned...

Rice_cooker

yeah the nearest dyno and tuner is about 5 miles away. Not to bad at all. I just am on a tight budget and don't want to spend money on towing it there.
I just want to make sure I am rich enough on the fuel to get it there safely. I'm not going to be boosting or revving high.

Rice_cooker

okay so after going through the settings of the AFC neo I realize its not as simple as just turning up the fuel.
I also have to set an air map and air correction for non-recirculated BOV and also set the lo and hi throttle points which I am not completly sure what that reffers to.
Blah........I put the whole damn car together and now I'm stuck at this!!!
The damn thing is slightly larger than a pack of 100's and it's a hurdle the size of the Eiffel tower!!!!
hahah

Rice_cooker

wrong post.

MaczPayne

iTrader: (5)

Going with an aftermarket turbo set up and not using standalone is a recipe for disaster.

Rice_cooker

Well like I said earlier, the other 2 cars that had the 60-1 installed ran fine for over a year almost daily driven. They never had downtimes or anything. So I know it's not totaly detrimental(howevr theheck you spell that word) to the life of the engine.

classicauto

iTrader: (3)

don't worry, they're mostly just squacking. They are correct to say that a full standalone is superior in everyway, but Ive seen crazy wild setups on factory maps.

Stewart Hoo from Can-Jam during a build off we did turbo'd a GSL-SE block, added extra inectors, no intercooler, aquamist and MSD with A FACTORY N/A ECU (from the 84) and SDS. Dyno'd it afterwards at 297.6whp. Pretty impressive no? Also, the LM-1 read *fairly* consistent 12-11's running around the track.

Don't get me wrong, standalone IS the way to go....but a piggy-back can be done and done fairly safely......you just can't get as finite or NEARLY as good an overall tune.