The Juxtaposition of Flashed ECUs and Fuel Controllers - Page 5 - ZX6R Forum
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post #61 of 65 Old 01-12-2016, 07:39 PM
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Quote:
Originally Posted by thesighbored View Post
I'm no expert, but I think the difference is per what EvilTwin mentioned, for ECU reflash, it's a one time setting and the variables are approximated, if you need a re-tune later on, then they will need to re-flash the ECU again. That's where the fuel management controller comes into play, being able to be adjusted, some have auto-tune modules, and even multiple fuel map storage which can be loaded/activated.

If I'm mistaken my apologies.
yes i you want to re-tune you have to reflash .. but its the same thing ..
if you want to re-tune your fuel controller you will have to get dyno tuned again if you do any change.. so its the same thing .. unless to whom you are getting your bike tuned charges you the flash extra and more..
or unless you are trying to do changes by yourself

Quote:
Originally Posted by EvilTwin View Post
You're right, everything you can do with a Z-FI (except TC) you can do in a race ecu, plus a few options. The only draw back is that often times race ECUs aren't as easy to tune with. For example stock O2 sensors are narrow band not wide band, so they can't be used to gather AFR data with which to build or modify a map. So you can manually adjust fueling on a race ECU, but you don't have an option for running an auto tuner like add on.
Z-Fi's are much easier to use than a race ecu, if slightly more limited in their adjustment capabilities.
okay i get it now ... the auto tune does great job but sometimes like you posted in other thread if im correct the autotune changes the map a lot from how it was originally tuned and its not good..thats why bazzaz lets you apply the changes of the z afm unlike pcv autotune..
so my last Question based on your answer to my post is this ..is the autotune so important? and does so much difference to make someone choose an addition fuel system over a race ecu or flasehd ?

Last edited by spyros12; 01-12-2016 at 07:48 PM.
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post #62 of 65 Old 01-13-2016, 09:16 AM Thread Starter
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Originally Posted by spyros12 View Post
okay i get it now ... the auto tune does great job but sometimes like you posted in other thread if im correct the autotune changes the map a lot from how it was originally tuned and its not good..thats why bazzaz lets you apply the changes of the z afm unlike pcv autotune..
so my last Question based on your answer to my post is this ..is the autotune so important? and does so much difference to make someone choose an addition fuel system over a race ecu or flasehd ?
Auto tune or Z-AFM, the benefit is that you have detailed O2 sensor feedback. And as long as you save your base map, you can always go back to that if you don't like the changes that are made. I think that both the Z-AFM and the auto tuner have their merits; it's nice in some circumstances (more road riding situations) for there to be active changes, but when I'm on the track I'd rather be able to review the data first. There was talk, before I left Bazzaz, of enabling the Z-AFM to operate in either mode, data collection or active tuning. I don't know if that was ever implemented or not. The important thing to do with a set-up that makes active changes, is to set the parameters for how much change it's allowed to make. I would never let it make more than a 10% change, maybe less.
If you're racing, or are serious about getting the maximum power out of your bike when you're at the track, then you want the ability to remap every time you go out. Tracks are at different altitudes, weather affects barometric pressure and humidity which in turn affects fueling requirements. Hell, even buying gas at a different gas station, or in a different state can make a difference. The Z-AFM can also be a great diagnostic tool; say you're at the track and you start to notice hesitation from your bike, the Z-AFM data can tell you if that's caused by a rich or lean symptom which can lead you to the right diagnostic path if fuel adjustment isn't making a difference.


If you want the breakdown on fuel management systems, take some time to read this thread.
For a walk through on pulling FI Codes, check out this thread.
Questions about Flashed ECUs vs. Fuel Controllers? Try this one.
Got a Z-Fi TC System? Read This to get an idea of how it works.
Here's a link to some Kawasaki Service Manuals that I've got hosted for everyone's use.
And please check out my blog for more sage advice and technical ramblings.
Some basics about braking here.
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post #63 of 65 Old 01-17-2016, 10:49 PM
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i am going to go with a flash tune data link and going to do it myself. load maps and stuff. dont trust pc5 and the auto tune
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post #64 of 65 Old 02-12-2016, 10:56 PM
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Awesome write up broski!

Stock ECU (stock flash)
Power Commander V
Power Commander Auto-Tune
Power Commander V Secondary Fuel Module
win-win-win
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post #65 of 65 Old 01-13-2017, 06:44 PM
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Got sent here from a thread that I started and now I know exactly what I'm going to do for my 636. Thanks for the comprehensive write up!!
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