Anybody mind post their AFR Target tables?
 

I'm playing around with these for the first time and I'm just looking to see what you guys are running.

Thanks!

Mine is scaled from 1600 to 7000 rpm. 20kpa - 230kpa.

16 on the lowest line, 15 in cruise sells, 13 at 100KPA 12 at 230KPA.

Fill in the blanks evenly.

Im sorry, im at work and cant post my table :(

These are pretty arbitrary, but they seem to work well:

http://img37.picoodle.com/img/img37/...Rm_734897c.gif

K.

Thanks Joe.

I'm still trying to get mine to read AFR and volts using the fix you posted.

13:1 at atmospheric, stepping down to 12:1 in boost, cruise close to stoich, part throttle around high 13:1 to 14:1

do you work for an oil company? jesus.

lol. Motor likes fuel. Boosted cells stay rich till I get a new fuel pump and get spark dialed in. For safety, not optimal HP.

LOL Thats a great quote.

I lol'd so hard when I read that.

Might have to post mine, I'm sure it'll be the leanest of the bunch. :-) Works well though.

My map looks alot like Hustlers, it drives very smooth once its had time to autotune in.

Thanks guys.

I had an idea of what it was supossed to look like, I got the AFR thing figured out (little different than what was posted) so I'm going to try a few different combinations and see what happens.

http://abefm.smugmug.com/photos/450110414_vzMfG-L.png

I was pretty convinced this helped my fuel economy a TON over the old settings... but it turned out just to be the freeway miles. Still a bit better, I'd say 20-22 in town, 25-27 freeway. It used to be quite a bit leaner off boost.

i run dis:

http://boostedmiata.com/MS/afrtargets01-01-09.JPG

if you're wanting some N/A input I run about 15.6 at cruise, stoich in the low revs at part throttle, then around 13 at WOT

Are the larger AFR tables MSII?

Yes. MS1 has 8x8 AFR tables, MS2 has 12x12.

The value of larger tables than this would be debatable, as you don't generally want sharp transitions in AFR.

good thing MS does a great job averaging between cells!

Joes is the only table here I don't hate with furious vengeance.

Try taking someone's logs after they've had a good multi-load dyno tune, and build an AFR table from there.

whatever you love mine too:

http://img37.picoodle.com/img/img37/...Rm_734897c.gifvs.http://boostedmiata.com/MS/afrtargets01-01-09.JPG

Pretty similar if you ask me. The 5000+ vacuum rows hardly matter, and I kept my 100kPa the way I did because I found that if I was cruise on the highway and little low vacuum, it would go rich too early. I have no problems going from 14.5 to 12.6:1 between 1-3psi.

I'm surprised to see how lean everyone runs at 200kpa. I put mine at 11.5 because the car spends so much time up there at the track.

Peak torque for gasoline is somewhere between 13:1 and 12.5:1, so we're already a tad richer than is optimal.

Unless somebody can show me dyno proof that running at 11:1 allows them to put in so much more timing that it's significantly more powerful, I'm unconvinced of the utility of running much richer than I do now.

Why do you run so lean around the 100Kpa range? You don't get knock or misfire doing that?

I've been looking for a definitive answer on what's "safe" in terms of AFR for track cars at 250whp / 14psi. No one agrees on anything. Some shops say 11.5, some say 12.5, and the rest fall somewhere in between. There is zero consistency.

No. :-) It seems to run great there. SOMEDAY (when I get a willing passenger) I'll tune those rows: Look for the lowest pulse widths to maintain a cruise at those cells. But it runs great, so why throw more fuel at it? Possibly I could get more power, but the truth is I pretty much find everything under 3-5 psi boost is "cruise" anyway.

Actually, that raises an interesting point - only at high RPM. In fact, only in high gear. If I had a gear selector, I would only have it that lean in the top gear. Also, below 4,000 rpm, I couldn't "cruise" there, even uphill, in top gear, so I should richen it up.

Perhaps an AFR target the leans out anytime you maintain "constant rpm" ( (delta)rpm/s < 100) since you're cruising anyway.

Yeah - "safe" is up to interpretation. Personally, I'd look at the leanest someone you trust is running with success, and copy it. :-) There's no reason to go higher than 12.5 as joe said. Really, peak power is close to the number you want, after that it's all safety. Water injection, or monitor EGT's, and you should be free and clear. I wonder if you can add a point to AFR if EGT's raise over some amount and stay there for more than some time.

Why do I have a feeling that by the time this Free EMS thing is done, the compiled code is going to be bigger than a Windows Vista distribution?

I remember Ben saying he made more power at 11.4:1 than he did any richer, and my car detonates if I go any leaner than about 12.2:1.

Thankfully, they have the option of ignoring me. :-)

Besides, it's decently modular, so you can leave out as much as you want. The serial code, for instance, might be bigger, but it sure is inclusive, and runs much, much faster than MS-II, over the same connection. I'd like to think of it as an improvement. Leaves more time for sillyness.

Says the man that's blown up how many engines?

I get 20-22 city, 30-35 highway. Just got 30 on the highway today and I had ~350 pounds of cargo jamed in the car and made 50+ boosted pulls on that trip. FYI.

My thoughts in bold.

I may change my boosted cells to be similar to yours.

EDIT: FWIW, there's a reason ALL my boosted cells are the same too. If I'm boosting, I can look at my AFR gauge and no matter what, it should read 11.5 as I have all my boosted cells tuned for that number.

Might as well take all the air out of the tires so when you walk up to the car, all you have to check for is the rims touching the ground. And, stop using unpredictable gasoline in the car, who KNOWS what "92 octane" really means, let alone if it's reliable. I'd say run nice, pure, predictable water.

Remove all uncertain images from your life by stabbing out your eyes.

Sorry, 11:1 everywhere is a joke, beyond wasteful, hurts everything, etc.

Heh. Touche. :-) Though to be fair, every problem I had was when running an open loop, untuned, no wideband, piggyback system which fought the stock computer, and had an injector rail which was basically designed to fall off, leaning out the motor. Since the MS, where I can actually CHOOSE how much fuel or timing I get, things have held together just fine.

I run a map very similar to Joe's, and unless somebody tells me that's wrong I'm going to keep trying to get MS to run that.

This I can vouch for. Abe is the only man I know who has bathed his whole engine compartment in gasoline several times (while driving) and yet still does not carry a fire extinguisher. Hell, I started carrying one because of him, and I don't even have a piggyback rail.

Oh, no, I got one... It's just that gasoline has never prompted me to go digging for it the way oil leaks have.

Actually, I'm quite happy with my "midsized" extinguisher, and carry it all the time - no only worry is that sometimes in the trunk it'll get burried, not good for fast access. But there's not a lot of room in the cab, even though it's slender.

Calm down abe, I leaned it all the way out too 11.5:1. :giggle:

FWIW, I have a small fire extinguisher infront of the passengers seat, velcro'd to the floor. Fits fine, isn't in the way of anything, and is very handy.

Think of all the space you'll clear up when you take out the sportscar pedal. :-)

Mine's a 10BC, and it fits nicely in the little space on the floor behind the passenger's seat. Assuming nobody is sitting there, I can access it pretty easily from the driver's seat by reaching across and tilting the seat back forward.

I'm highly considering an extinguisher before playing with my fuel system.

Glad some of you guys have them. I wont feel like a ricer now. :)

all you need is a black cowboy hat mr bandit

Who knew the Bandit drove a rice burner?

http://img34.picoodle.com/img/img34/...tm_d0a28e0.jpg

uncanny!!

Ok so from here MX-5 Miata Forum - Auto tune or VE analyzer ?????

This is basically what I have done so far in a nutshell
Free air cal of the LC1 and went to Configurator and chose the default LC1
Then I went to Basic Settings -Exhaust gas settings and chose wide band.

Now I am trying to set up the best AF1 target settings for a non aspirated 1.6

Are the settings in the AF target table actual A/F rations ?

I wound like to end up with a 12 by 12 VE1 table with somewhat more resolution in the mid region.

My current table reads up to 230KPA so it seems like I should type in the values suggested that do not waste KPA bins that I will nevr use. This is simple enough to type but what happens to the existing VE bins and their value ?

Can I just re scale the left column ( KPA ) and have MLV slowly correct the values in the bins or will the car run like crap.

Thanks :)

rescale your fuel map more like this:

http://boostedmiata.com/MS/NA_fuelmap.jpg

spark doesn't really need to be changed.

What is that for? Looks lean as heck.
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Thanks ! :)

What about fuel target table. ?

My fuel target table reflects the same KPA values.....:eek5:

Yeah that's how I feel :nuts: :)

That IS your fuel target table.

That's his VE table, I think he meant AFR table.

You should read a bit about tuning and AFR values so you know what they mean instead of just plugging in numbers others tell you. It would also help to drive around and notice what part of your VE table you are using in different situation. But if you have to take an emissions test you want your cruise cells to be at 14.7. If you don't have to take one you could lean it out a little to get better gas mileage. You want your 101kpa bins to be 12.5-13.0. And in between you want to more or less scale the values between cruise and WOT.

Also when we say rescale your VE table we don't mean there is a button somewhere in megatune that does it for you. You have to do it yourself.

Read the megamanual. I've read your post on m.net and you seem to not have much/any grasp of how the megasquirt does its thing. Reading the megamanual on tuning and whatnot will be very helpful for you.

I mean the one under "More Settings" scroll down to AFR targets for VE table 1

"Non grasping" - that's me :)

You can run a LOT leaner at 101. Unless you're NA and trying to make big power. Otherwise I'd run 15.5:1 at 100 kpa.

I think y ou can rescale, maybe that's only MS-II.

He is NA.

I think the table can be re scaled by increasing/decreasing PW but I'm trying to keep things simple....