ECU+ ???

[earlyapex]

exactly terry, but you do have to input initial values if your car is modded via fuel upgrades.* for the same reason it isn't recommended to drive or boost on a car that just had injectors installed.* UNLESS ECU+ has a built in map to deal with these types of things.*

ECU+ has injector compensation, you can set it to whatever CC injectors and it compensates for it. Remember though, that pulse width on injectors is not linear, so you have to do a bit of tweaking to find the CC setting that works well with you size injectors, it isn't always 1:1.

You'll find that most cars with larger injectors and stock turbos run too much timing up top on 91 octane, causing more knock and pulled timing then you think. My maps actually have timing taken out up top. -4 at some points on 91 octane. This reduced knock, stopped pulling timing, and of course, gave me back torque and horsepower. All dyno verified. (street and a real mustang dyno)

oh yeah, something i completely forgot about.* earlyapex...what if you want to switch maps on different octane fuel???* can i have different maps for 91 oct and, say, C16???*

You can save and load as many timing and fuel maps that you desire. I currently have two fully tuned 100 octane maps, and two fully tuned 91 octane maps. You do however need the laptop hooked up to switch these maps. Palm map switching is currently in beta which will be even better, think of your palm as your personal map flasher.

[TrickedOutEVOVIII]

what about on bigger turbos like my situation??? there is a huge timing advance when upgrading...will there be any limitations with the ecu+ since i soon plan on getting a stroker motor or 2.4L and a bigger turbo???

T

[earlyapex]

what about on bigger turbos like my situation???* there is a huge timing advance when upgrading...will there be any limitations with the ecu+ since i soon plan on getting a stroker motor or 2.4L and a bigger turbo???*

I don't have much experience with larger turbos on EVO's yet but I don't see why there would be any limitations. Fuel is adjustable +/- 50%, and timing is adjustable +/- 15%. Remember also that when you do injector compensation, it basically adjusts the MAF HZ that the ECU sees. This is normally done by adjusting the fuel percentage (like SAFC), so at some point you will be adjusting it so much that you run out of adjustability. With injector compensation, it does that for you and then you adjust fuel.

Case example:

I am currently running 720cc injectors and do not have injector compensation set. Up top I am taking out 23% of fuel. The factory ECU thinks I am flowing 1359 worth of MAF HZ, I am actually flowing 1760 worth of MAF HZ. If I had injector compensation on, depending on what CC I have it set to, the ECU+ would do that MAF HZ compensation for me (up to a certain point), then I can do fuel tuning from there.

Does that make sense? Injector compensation would basically give me more overhead to work with

[TrickedOutEVOVIII]

ahhhhhh i see. now when it says +/- 15 % of timing ADJUSTMENT...it obviously means that the range of adjustments that you can make and is allowable by the ECU+ is that 15%. but my question is, ive seen upgraded turbos run more than 20 degrees of timing...am i gonna run out since the ecu+ is 15% up or down???
im not an expert on timing advance and retard...so please excuse the dumb questions.

T

[earlyapex]

ahhhhhh i see.* now when it says +/- 15 % of timing ADJUSTMENT...it obviously means that the range of adjustments that you can make and is allowable by the ECU+ is that 15%.* but my question is, ive seen upgraded turbos run more than 20 degrees of timing...am i gonna run out since the ecu+ is 15% up or down???*
im not an expert on timing advance and retard...so please excuse the dumb questions.*

T

no, the adjustment is on top of whatever the stock ECU is giving you. It's not static like AEM EMS.

So, if the ECU is giving you 18 degrees of advance at 6800rpm, you can adjust +/- 15 points from that.

My car wants to run +22 degrees up top on 91 octane because of my injectors. I found I knocked because of that so I took out 3 points of timing, now I hit about 18-19 degrees up top.

[TrickedOutEVOVIII]

SWEET!! thanx earlyapex, once again...im sooo sold on this unit. i think im gonna order it right now

T

[trinydex]

hey guyz...now im kinda tossing up the idea of maybe getting into one of these. ive been reading up on this unit and it looks damn good to me. all the features and programs that it comes with! it looks very exciting. not as complicated as a standalone but at the same times allows direct control of air/fuel and most importantly...TIMING!! the things that this unit monitors for you is out of this world. 127 data points as opposed to 12 or 16 is damn sexy too!! its also really practical to use this unit with a laptop or palm (which i have both). im trying to find any reason why i shouldnt get one of these!! besides the fact that a couple more hundred bucks and i can get myself a standalone. i know thats what everyone will say...but to answer your question...ive already got an AEM ems...im just researching all my options. thanx for looking and thanx for any contributions.

T

be careful it doesn't allow direct control over timing or fuel... but that said it allows final values for timing and fuel and that's very useful. direct control would allow you to run antilag and such... you will never get anything more than no lift shift with a piggyback.

[Blak94GSX]

The ECU+ is an excellent option and one that should be considered as being the next step up from an AFC and not as powerful or complicated as an AEM EMS. I recommend the AFC, ECU+ and then AEM EMS, and that's it.

The ECU+ is still pretty complicated for the first timer, but certainly much easier to setup and maintain than the AEM EMS. Powerwise it won't give much over an AFC for say pump gas, but with the ECU+ you can modify the timing to be more aggressive when using race gas.

The only downside is that it costs twice as much as an AFC and you need a laptop to use it, but you need a laptop for the AEM EMS, and the EMS costs twice as much as the ECU+.

[trinydex]

can the ecu+ run on Speed Density ?
Also have you consider the Xede as well, similar to the ECU+

no and it will never but it will run a 3.5" gm maf which is better. and you can also set it up for blow through which is expensive.

[trinydex]

wow...i leave the computer for a few hours and look at all the responses. thanx everyone for all the helpful info. thanx earlyapex. are you using a palm with it or a laptop?? im assuming the laptop would offer much more logging capabilities than the palm. you can download their software directly into your palm or laptop right??? no need for any other software or download anything else right?? as long as you have a palm or laptop and the ecu+ and its sofware, youre all set to install and tune right?? another question i have is that the ecu+ does not have AFR logging capabilities, although indirectly it does through the o2 voltage, but is there a way to get an AFR meter like zeitronics and have it read with your ECU+??? the reason im concerned with this is cuz the narrow band oem o2 sensor doesnt read with the accuracy of a wideband o2 sensor which is what i want. i was just wondering if there was a way to include a wideband o2 instead of the narrow band with the ecu+ software....

another reason, all of you that are advising me to keep my standalone, should know is that im looking into the ecu+ instead of a standalone is because i can tune it myself. i would much rather tune my own car and be proud of the numbers i acheive that way instead of having someone else tune it for me. my .02 cents.

T

aem is basically open loop all the time, that means tuning it requires much more expertise. the stock ecu takes care of a lotta adaptive tuning for you so piggybacking off it and just taking care of the power goodies is good.

it already retains stuff like idle only control and allows you to modify timing and such for a better idle so you're almost losing out on nothing. and you get hte accuracy and adaptability of a maf.

[trinydex]

Since the ECU+ directly controls timing, isn't upgraded injectors not as important (initially) compared to an SAFC2?

Terry S

but i think you may still need to them to remove fuel cut... someone answer this hahaa

[Blak94GSX]

Actually the EMS can do full closed-loop much more than the stock ECU ever can. EMS does closed-loop to maintain any AFR you want at any throttle position and boost level.

[earlyapex]

Since the ECU+ directly controls timing, isn't upgraded injectors not as important (initially) compared to an SAFC2?

Terry S

but i think you may still need to them to remove fuel cut... someone answer this hahaa

ECU+ has a fuel cut defencer.

http://www.ecuplus.com/features.htm

[trinydex]

i stand corrected... hmm... myabe i'll make the jump someday...

[earlyapex]

For all the current SAFC users looking at ECU+, as just a FYI, I had been using AFC and SAFC's for 7yrs tuning 4G63's and I made the switch to ECU+ this year because I felt I was ready for more control.

Now I wish I had ECU+ 7 yrs ago. It's obviously not for everyone like Scot said and you do need to remember it's still a piggyback, but a damn powerful one at that.

[Terry S]

Once it controls boost and has a IX harness, i'm all over it.

Terry S

[Blak94GSX]

ECU+ is also a good learning tool for anyone looking to eventually go to a full standalone. The tuning methodology is pretty similar and the datalogger functions in a similar fashion.

[TrickedOutEVOVIII]

sweet...thanx scott for all the insight and everyone else whos contributed to this thread!!

T

[DTunedEvoX]

Let us know what you do ...

[lagcisco]

damm now I want to buy an ECU+