TurboIILover

iTrader: (2)

im in need of an s4 n/a map my car is running really rich

TurboIILover

iTrader: (2)

well heres what the car is running the afr is 10.9

pmrobert

Why don't you just obtain logs and modify your VE table based on the logs' content? Blindly using other people's maps is not a fantastic idea. See http://megamanual.com .

Aaron Cake

iTrader: (1)

Yeah, what he said. The point of an adjustable standalone is that you adjust it to suit your application. The VE table needs to be tuned to your specific engine and even someone with an identical car may not have the same VE table.

If the car is rich, reduce fuel where it is rich. Using someone else's map will create the same amount of work anyway, since it will need to be retuned for your car.

TurboIILover

iTrader: (2)

yeah i understand that, its just my first time ever messing with a standalone computer and i dont really know where to start, i got a really stupid question, to advance timing on megatune do i have to put a negative ( - ) symbol in front of the degrees??

pmrobert

This is not a flame:
You really need to spend some time acquainting yourself with the terminology, theory, physics and concepts behind Megasquirt (or any EFI for that matter). There's plenty of info out there. Reading through http://megamanual.com for general concepts applicable to all EFI and Aaron's very cool http://www.aaroncake.net/rx-7/megasquirt/ for rotary specific information would be an excellent start. I give you credit for being cautious with things, that's an excellent mindset. I do however fear for your apex seals when you're fishing around for advice regarding timing advance on a rotary. A simple response to you of "no, you don't put a (-) negative symbol to advance the timing" helps you for the short term but is no favor to you in the long term. You need to understand these concepts yourself. A steep learning curve is unfortunately unavoidable and seems painful but it's well worth it. The pleasure in knowing how everything interrelates is immeasurable. If you have questions, please let 'em rip - there's plenty of knowledge out here that is yours for the asking if you show an effort at learning and not just looking for shortcuts.
Again, I do not intend to be derogatory towards you in any way, I'm just offering advice that I wish would have been given to me some years ago when I was in your shoes.

-Mike

TurboIILover

iTrader: (2)

ur right im not sure what i was thinking when i started this project, what i should have done was read up first learn about the theory and then apply it, but i guess the excitement just took over my judgment and now im a little screw over cuz this is my daily lol my friend and i where trying to tune it all day today we got it to idle but its alittle rich around 11.5 any leaner than that and it will shut off, we also tried tuning around on the streets at low load and it run around 13.0 and keeping the same speed same load all of a sudden it leans out any where from 16 to 21.8 and i have to let go of the gas for it to get back to normal, or it will bog and my tachometer with bounce to 0 then back up...so im guessing that i either have some noise issues or a bad intermittent vacuum leak maybe both...so i got to figure out that problem, so i guess ill start reading up first and ask question later if i still dont understand. thanks to all u guys trying to help me out i really appreciate it and sorry for my ignorance lol
ismael

rotarygod

iTrader: (1)

Tune it in 3D mode. Do not use the tables. By using 3D, tuning is as easy as hitting shift and an up or down arrow. It is also easier to follow where you are on the map this way.

TurboIILover

iTrader: (2)

ok imma try this tomorrow thanks for the advice, and also pmrobert ur right doing more research does help lol it turns out that alot of the problems im going through other people have experience as well lol and by reading there post ive figured how to fix mine, so thank u honestly

pmrobert

Glad that's working for you!

muythaibxr

Funny you say this, I agree with you, but I was reading over at miataturbo and they have several guys running MS who think the 3D maps are unnecessary and don't help!

I was surprised by this and would be interested to know how many people use the 3D vs 2D versions of the tables.

Ken

pmrobert

3D for me. I would imagine that it is a left brain/right brain preference.

Matt Cramer

I like having both. We use the 3D tables when adjusting the tune at part throttle during steady state mode or driving around in a parking lot, but the 2D ones are easier to tweak after full throttle dyno pulls.

dj55b

iTrader: (2)

I use both for different things. Like for all the fuel adjustments its all 3D maps that i use to tune with, I don't even bother looking at the 2D. You can visual the range that it goes though alot easier, and I can smooth things out ALOT easier with it.

But say if I'm doing any kind of timing or rotary split, I go with the 2D and use the contour plot to visually aid me with the smoothing. The contour plot makes it easier to spot rough transitions which I find make the car a bit jerky.