ok you have slow coverage and rapid learn for the ecu to tune itself then basic closed loop and open



then you have the afr table for it to read from



ignition same again



then you use the ecus datalogger to read engine noise then update the figures to this and add 10%

 

wouldnt say its crap stuff really but ur right to a certain degree that there out of date but not many aftermarket builders have the budget of say ford or bmw for development

 

Thanks jay, I undertstand a little of those screenshots!


Yeah i've got a tiny budget, its a bit backyard, especially trying to retrofit spark creep into MS, but i'm up for it. Just need several engines to break now haha

 

if i was starting again id get a rst with efi manifold and learn on that as there cheap to repair or get another engine compared to a snotworth but i havnt had one let go yet

 

can some1 not just ban tabetha twat i ain't got a fuking clue what i talk about

his constant bad information on here is gonna cost some poor soul 1 day

 

you're hardly mr safety yourself mate

 

Perhaps i'm not reading that right, but it has a measly 4 speed breakpoints for the auto-tuning on fuel, but a gazillion for the spark knock detect?

 

you are and it works

what i plan on doing is getting either chip or alex over so i can vidoe the live changes as they happen to prove the point when i get my car together

 

Fuel tuning is a linear line relationshio to air mass so many breakpoints are not needed.

Spark adance behaves like a logarithmic curve (sort off) so more breakpoints the better..

 

Yes but still, 4 is pretty measly.

 

4 points is measly but capable !!
Thats the target AFR map, if you look, it gets disabled after a certain boost pressure where it will revert to normal mapping
(a user setable level)

 

Yep, I'm gonna have to read stus articles again.

 

read this to i just did and it hurts need drugs or vodka now

http://en.wikipedia.org/wiki/Logarithm

 

What goes on with making a loom for MS, or Adaptronic? custom I assume,, or is the ECU plug 'n' play?

 

Custom looms

 

sorry not gonna even bite at that pal but you are very much mis-informed as you don't even know me

if you care to explain via PM please do so

 

PERFECT

THANK you silky, you are, of course, more than entitled to your opinions about tabetha/anyone, I'm not knowledgeable enough to know if he/she (sorry but is is a girls name) knows anything about the subject. Just like Jim is entitled to his opinion about you, but my main point is THANKS for offering him to PM you, rather than slug anything out on my thread.
Thats the way things should be done IMHO.

PS if you quote this ^ message and reply to it you are gay.

Now, more info/conversation/explanation needed please!! Jay, I dont completely follow the pics you posted, could you possibly elaborate a little, and maybe anotate your pics. I understand mapping theory, but having not done it myself (and wanting to give it a go) I would like some more info. Even if you break it down to simpleton terms to begin with, at least I will learn from the ground up..

Many thanks again, I'm loving this thread! Wheres stu when you need him!!??

Steve

 

will do steve but off to bed as im up in 5 hours ill get it done in the morn for you

 

From a programming point of view, I guess it depends how good you are at writing programs and algorithms. ECUs of today use various sensors and then calculate how much fuel etc is needed based on readings they get. Anything and everything is programmable, just depends how much programming you want to do!

P.S. Programming C and C++ does my head in enough never mind ECU programming!

 

Cheers Jay, no rush but would be MASSIVE help, thanks bud!!

I know it'll be hard, and even if i created my own scratch built ecu with self mapping facility and spark creep, I still wouldn't know 'much' in the grand scheme of things. My brother is expert in C++ etc so I think to combine that with a knowledge of cars would be very useful. I frankly understand it on a basic level, but am willing and want to learn, even if it only benefits me i'll be happy

I just want to learn by doing. As much help as stus tech articles are (and others tech posts) it doesnt make me better at anything. I might be better informed, and less likely to go wrong though, so of course they are invaluable, but I cant read something and claim to know what i'm on about with it

Steve

 

It'll probably take you about a year just to rough out the hardware and to build a wheel decoder.. to put it into perspective

 

Just read that, and dug out all my old A level maths and physics books! Got some work ahead of me!
Looking at algorithms too, oh god its all coming back

 

Good topic, well, apart from someone trying to make me look bad for no apparent reason. LOL

 

Thanks stu!

Do you think its feasible to put spark creep into MS? and other than it being an achievement that will teach me alot, what would the advantages be?

 

ah forgot about this thread ! steve ill put a few things together to answer ur questions today