Local ECU

[xbalance2002]

guys look like our local ECU ...is MIA......

 

[ecupro]

xbalance2002,
Bro, what is MIA....stand for.....

 

[cuscostrutbrace]

Missing In Action i think

 

[ecupro]

cuscostrutbrace,
I see, thanks.

May be...Mr.Manan In America....ha..ha..ha

 

[cipan_supercas]

ecupro;
any chance of me having an evaluation test on your home made ecu?

 

[ecupro]

cipan_supercas,
Hopefully come go down to KL in Dec, on third week.
I will drive my car down.

 

[Joeker]

I'm get the impression that someone here thinks his ECU is more superior than other local made ECUs.

Especially if the competition prefer to be low profile in nature, he tends to run over them (the other local ECUs) like they were dead strays.

Anyhow, I notice true profesionals who tune for a living and have results to back it up tend to have a low profile than the wanabees (wanabees = part time weekend tuners, self proclaim Gods of ECU, bla, bla, bla)

I mean, if I were I tune cars for a living, why would I preach and enlighten my knowledge and experience on the world wide web? would'nt tat jeopardize my return business?

Well , that just how I see things.......

 

[cuscostrutbrace]

Well,i see this forum as a place where we can share our knowlegde,not a place to brag or show off,this forum should benefit all of us car enthusiasts,right.I learn a lot in here,and if all of the professional tuners and Gods of ECU keep their mouth shuts,i wouldnt gain anything.Well at least,thats my opinion.

 

[Joeker]

Good point there cusco.

But at times, some of the information are'nt exactly acurate and some are mere myths with no supporting facts or figures.

I can tell you once I read with disbelief a self proclaim Guru of ECU here telling another forumer to tune his SAFC to 14.7 : 1 all across the RPM range.

I'm not a tuner of any sort but I think the A/F should be lean on cruising and rich on WOT.

Anyhow, I've learnt quite alot new stuff from postings, among them members like Cipan Supercas. He knows wat he is talking about and it is reflected through his postings

Its unfortunate his DRAX thread had to be deleted due to forum rule violation of non merchant posting commercially. It had alot of great technical info on the working of an ECU

Whenever I learn of something new, the more I felt I knew nothing.

 

[cuscostrutbrace]

Well,during full load wot it should not be 14.7,hehe.I have frens who monitored his std ecu(4ag blacktop) afr using wide band,during idle its around 14.7,well this is true as u can see with most cars nowadays,u can see water dripping at the tailpipe,thats a perfect/near perfect combustion .During cruising it is slightly lean around 15-16.And during wot it is 12-12.5.It is a bit rich on n/a but i think toyota do this because of the 4 throttle.

 

[speedchaser]

Not only because of 4 throttle Cus, Toyota did it in all their cars from their small little farts to the JZAs.

Especially the AE101 Supercharge where at 5.5k RPM on boost, the AFR is something like 10s or in the high 9s on stock ECUs. That's where the power dips. No amount of fuel pull back with a little piggy will help in the long run because of the the so-called fuzzy logic stock ECU.

And the little SAFC scam is the one gadget that I will never recommend for any cars!

 

[cuscostrutbrace]

Is it really,well that is interesting,no wonder toyotas are not so fuel economical.But why they make it rich,or too rich.I dont think by doing too rich it will get more power.

 

[cipan_supercas]

AFR tuning are actually dynamics. There are no firm figure even though 12.0 or around that figure are recommended and that depends whether it's turbo/supercharged or NA which require a different figures. When the manufacturer did their tunings, they have various parameters to look after, eg; power, consumption, exhaust temp etc. and these are done in a controlled environment and on new engines.

Due to aging, the AFR reading might alters. That's why piggybacks, chips etc are introduce to get the figure back on track (but beware, most chip tuning here are just a copy from an unknown engine setup which may/may not suits your application).

If you feel that piggyback/chip can't do the job for you, find a standalone. However, be sure that you have a healthy engine to start with. At least, check your engine compression or better still, have it decoked. If you have a seasoned engine, then, no tuning can help you achives your goal.

 

[cuscostrutbrace]

Cipan,yes i agree with you,max power occurs at different afr for different engine.As you tune your chip/stand alone,how exactly do you know on which afr gives you the best results for different types of engine.Do you tune it on dyno?

 

[cipan_supercas]

Cipan,yes i agree with you,max power occurs at different afr for different engine.As you tune your chip/stand alone,how exactly do you know on which afr gives you the best results for different types of engine.Do you tune it on dyno?

If customer afford to buy the dyno time, then I'll have it dyno tuned. I have a road dyno to judge the tune for I can't afford a rolling road yet. If you have a GTech-Pro, that can be use to monitor the final result either gain or vain. For the 'normal' not so powerful cars, you can actually feel the difference of before and aft but those monster are hard to judge without a dyno.

 

[cuscostrutbrace]

Yes,dyno make things easier,but sometimes it is hard to replicate the on road situations.And there is so many variable that might change the result for each run as well.Cipan,may i know where are you located,i will pay you a visit at your shop.

 

[speedchaser]

Yep, there's no firm figure and I totally agree with that. There's always a limit though of how rich or how lean you can go. As the ballpark figure of 12 or thereabout depending on NA or FI is more or less there.

 

[cipan_supercas]

Cuscostrutbrace; ygPM.

Sometimes, we need a figure of 10 afr to sort things out. Especially those skyline monsters which easily deteriorate with lean mixture.

 

[ecupro]

Mr.Manan,
Are you there ?
Is you product ( Bench mark M600 ) going to launch in "X-Mas" ?

 

[ecupro]

So, I am the "Best OF The Best"....ha..ha..ha