SAFC II on Enthalpy ROM tune

[jamg]

Is it necessary to run an SAFC II on the Enthalpy ROM tune?

Would you guys recommend it?

[Jesse SR20]

People here hate the SAFC. So you will get all kinds of grief about it.

It really depends on how close to the detonation threshold the rom tune is. If there is room to adjust with the SAFC, you should be fine. But you don't know how close you are unless you are on a dyno. And at that point, why not just adjust the rom tune.

The SAFC doesn't adjust fuel. I adjusts the MAF signal that the ECU see's. It tricks the ECU into adjusting the fuel, but Nissan ECU's adjust ignition timing along with fuel based on the MAF signal. So you could cause way too much ignition advance during high RPM on lots of boost, and BOOM. Detonation.

TL;DR - No

[Javier13]

you could use it to clean up after the rom tune. Have a buddy that runs a safc and a rs tune and that bitch rides out

[jamg]

Well im mailing out the ECU to him, and having him make the changes. Since I don't live in FL.

Thanks, Jesse.

[Jesse SR20]

An off the shelf rom tune will be fine for 90% of people. If you really want to fine tune it, take it to a tuner who can edit the rom tune. It will be much safer, and get you the result you want.

I ran a SAFC for a few years. I had that thing dialed in. Hours and hours of fine street tuning with a wideband and a laptop. I was confident that I could not have improved my A/F ratio any further. Lo throttle, mid throttle, and hi throttle all had an ideal A/F ratio. I ditched it and went with a Enthalpy tuned ecu, and I noticed it made more power and ran smoother right off the bat. It's all about the ignition timing map.

[jamg]

what about saving MPG.

i'm also wanting to get the best i can get out of my SR. I don't have a heavy foot, and assuming all other features of my car is in sync.

[Croustibat]

what about saving MPG


You bought the wrong kind of car if you worry about MPG, really.

SAFC or any other piggyback dont do magic, they alter engine sensors.

Want the best MPG ? Get you r car tuned on a dyno by someone who knows how to do it, not only for WOT but also for part throttle and cruise. But even then, dont expect miracles. These are turbo engines made to eat through petrol.

And this will cost more money than you will ever save by just driving and doing nothing, or by buying a cheap economical dorky car ...

[jamg]

i've seen posts of members getting at least 25+ though.

[Croustibat]

i've seen posts of members getting at least 25+ though.

I have seens posts of members claiming to be the reincarnation of various gods. Does not mean it is true either.

What is the point of getting a sports car with a turbo engine outputing 100+ HP/L if you never floor it because you want fuel economy ? I really cant understand that way of thinking. Want fuel economy ? Get an economical car. Want to go fast ? Get a fast car. Want both ? Cought up the money and buy a modern turbo diesel engine. Want it cheap on top of that ? Wake up, it does not exist. If it did, everyone would drive that. You need to stop daydreaming.

If you dont understand that these cars have never been engineered for fuel economy, you are going to naively spend a lot of cash and time on your car, mostly for nothing. Your problem though ...

[jamg]

25 is very feasible. I don't plan on romping on my car all the time. It's my DD too...

[fliprayzin240sx]

I have seens posts of members claiming to be the reincarnation of various gods. Does not mean it is true either.

What is the point of getting a sports car with a turbo engine outputing 100+ HP/L if you never floor it because you want fuel economy ? I really cant understand that way of thinking. Want fuel economy ? Get an economical car. Want to go fast ? Get a fast car. Want both ? Cought up the money and buy a modern turbo diesel engine. Want it cheap on top of that ? Wake up, it does not exist. If it did, everyone would drive that. You need to stop daydreaming.

If you dont understand that these cars have never been engineered for fuel economy, you are going to naively spend a lot of cash and time on your car, mostly for nothing. Your problem though ...

The problem is most mail in rom tune are rich right of the bat. My first car, the tune on it was so rich, I'd see it hit 10 AFR and see 11.5-12 cruising on the freeway. I was looking at 13/17 mpg on it. Hooked up a SAFC to lean it out some to 11-11.5 full boost and 14-15 cruising. I started seeing 19/24 mpg with it.

This was on an S13 SR with 740cc injectors, GT2871R .63 and Entalphy rom tune.

[jamg]

The problem is most mail in rom tune are rich right of the bat. My first car, the tune on it was so rich, I'd see it hit 10 AFR and see 11.5-12 cruising on the freeway. I was looking at 13/17 mpg on it. Hooked up a SAFC to lean it out some to 11-11.5 full boost and 14-15 cruising. I started seeing 19/24 mpg with it.

This was on an S13 SR with 740cc injectors, GT2871R .63 and Entalphy rom tune.

this was the answer i was looking for.

I want a nistune, but it costs more than i'd like to pay, so i'm going with my next best option, the mail in rom tune.

I do have a wideband so i'll be able to monitor how rich or lean i'm running.

The problem isn't me driving the wrong car, the way i want to drive my car, the purpose i bought a turbo motor for.

I have the same setup, except with 550's.

I was just looking for opinions for using an SAFC i bought, to clean up a tune for the Enthalpy.

[jamg]

The problem is most mail in rom tune are rich right of the bat. My first car, the tune on it was so rich, I'd see it hit 10 AFR and see 11.5-12 cruising on the freeway. I was looking at 13/17 mpg on it. Hooked up a SAFC to lean it out some to 11-11.5 full boost and 14-15 cruising. I started seeing 19/24 mpg with it.

This was on an S13 SR with 740cc injectors, GT2871R .63 and Entalphy rom tune.

so how was the whole experience with that set up? got better gas mileage without being worse off in performance?

I'm just debating to sell mine or not.

[cotbu]

just use the re-tune service, if he can't do what an safc does, he's not the tuner people think he is.

[jamg]

What are you talking about?

[cotbu]

just use the re-tune service, if he can't do what an safc does, he's not the tuner people think he is.
Why isn't that clear!

If the tune isn't like you want it, re-tune! There used to be re-tune service, did you not purchase this tune from "Enthalpy"? Maybe second hand?

We strive to excel at customer service. We understand that you love driving your car and don't want to be without your baby any more than you have to be. That is why we offer 2-3 day turn around time on all ECU's and next day return shipping is included on all U.S. orders with valid UPS addresses. We also believe in maintaining a good relationship with my customers. We offer zero downtime re-flashes for existing customers. If you need a reflash we will send out a new program to you so that you don't have to wait. All that we ask is that you drop the old chip back via UPS ground.

[jamg]

I already know that I have to mail it to him for a flash to my specs....

[cotbu]

He can adjust your tune, or should be able to adjust your tune to your liking. If you are rich with his tune, he may ask you to test for leaks, check codes etc. Then he may ask you to provide him with logs. so he can re-flash you another tune. your original tune maybe rich, lean or perfect. How is he supposed to know if you don't tell him. I consider all my first bin, bases. Cause every setup is different, when modified.

[jamg]

So.... I don't need the SAFC at all.

Is that what you are trying to say?

Lol

[KendallH]

No one needs an SAFC.

[cotbu]

So.... I don't need the SAFC at all.

Is that what you are trying to say?

Lol
B i n g o !

[coxodoina]

Well im mailing out the ECU to him, and having him make the changes.http://webcardid.com/apple/images/a14http://www.sdra.info/k2.jpg

[cotbu]

The first thing done too the stock ecu is cleaned, de-lacquered, header install, board fitted, jumper switched, then chips. I'm not sure if he'll write a tune from scratch or just install one that is close. All OEM z32 mafs should be the same, but if you have an Isis z32, will he have a separate tune for those or tweak the tune later via logs. Same with injectors, we encourage name brand injectors because they have specs that are true, redrilled or modded injectors, require guess work, even with data sheet printouts, latency wasn't sent with my company removed 555's. Just remember the tuning might not be over just because you receive the ecu back. G/L everyone.

No More Half Broken 240's!!

Sent from my S3 pumping Darth Stalker v7

[Croustibat]

The reason why mail tunes are rich and with conservative timing is because if they do map according to specs and it breaks the engine, customers will tarnish their reputation.

This is because you cant do a proper mapping if you dont have the car ... that is also the reason why you should get your car tuned properly and not on a mail order.

Mail order chip + SAFC cost is surely very near the cost of a real tune.

As for the nistune, it allows you to do the mapping yourself, but you still need to know how to do that. Having some of the tools wont magically transform you in a tuner.