entropy
Moderator
Posts: 8671
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posted June 20, 2007 03:41 AM
 Edited By: entropy on 20 Jun 2007 04:44
Ridgeracer DID IT: programmed the OEM ECU!!!!!!
After just about a year of persistence, Ridgeracer did it!!!!!!
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quote:
It works.
By using the BDM port adapter, the PROG16Z software, and applying a programming voltage of +12.6VDC to pin 29 of the large connector I was able to erase, blank check, reprogram, and verify a 32k flash module in the -B1 ECU.
I'll write it up in detail later but right now I need to go camping.
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HOLY SCHITTTTTTTTT: RR DID IT!!!!! Cracked the 12's ECU!!!!!!!!!!!!!!!!!!!!!!!!!!
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madmike
Moderator
FEAR THE BLACK FLAG!!!!!!!!
Posts: 6579
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posted June 20, 2007 05:33 AM
GREAT JOB!!!!!
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200-MPH CLUB MEMBER!
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shiphteey
Needs a job
Posts: 2529
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posted June 20, 2007 05:52 AM
WHOA!
So what does this mean to the not-so-technically inclined!?!
What can be done with the zx12 that couldn't prior to him cracking it? What parameters are now opened up, so to speak?
Good work RR!
A.
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Seth ZX12r UK
Expert Class
Posts: 238
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posted June 20, 2007 06:33 AM
Thats some project.
Kudos Ridgeracer.
What tuning can be done with it now its cracked, over and above what a PC3 can do?
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entropy
Moderator
Posts: 8671
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posted June 20, 2007 07:09 AM
You gotta go to the thread pinned to the top of this forum to see the details.
I posted a separate "notice" because RR's pinned thread has been there so long many folks aren't monitoring it.
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ninja12
Needs a job
Posts: 3310
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posted June 20, 2007 08:22 AM
quote:
Thats some project.
Kudos Ridgeracer.
What tuning can be done with it now its cracked, over and above what a PC3 can do?
No need for a PC on every bike, just reprogram to the map you want and ride.
Raised rev limit. mod the ignition curve to retard on the top for nitrous.
just to name a few.
Thanks RR!!
G
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osti33
Needs a job
Posts: 2973
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posted June 20, 2007 11:44 AM
quote:
GREAT JOB!!!!!
Agreed!! Way to go RR! 
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thekaz
Needs a job
spell chequer is bustimicated
Posts: 2909
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posted June 20, 2007 12:32 PM
This is proof that Ridge's brain actually works which more than I can say the rest of us 
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shiphteey
Needs a job
Posts: 2529
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posted June 20, 2007 01:47 PM
This now begs the question...whats the turnaround time to have him re-do are ECUs...and the $....
A.
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lou_zx12r
Expert Class
One Day at a Time
Posts: 196
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posted June 20, 2007 02:15 PM
well this has got to be one of the best news and hard work done to enhance the zx12r to date. So i guess now we need a ginny pig! a stock zx12 that can get reprogrammed to see what can be achieved and a not-so-stock 12r to see what more can be achived. This is very exciting to say the least, I can;t wait to see what the results are and what changes can be had to enhance the zx12. How about a running list of what most people would like to change?
first items
higher rpm's --this has got to add a bit more top end for those that have just about done everything else
timing munipulation -lets see 2.5degrees up to 7K rpm's than lower by 1degree there after
this is for nos & top speed junkys
smoother fuel curve -get ride of any ubrupt throttle response, maybe a few extra ponies midrange too
whatelse? com'on ???
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2000 ZX12R 40shot
2012 ZX14R
2009 Concours 14
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ridgeracer
Pro
Posts: 1309
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posted June 20, 2007 02:28 PM
quote:
What difference will this make to tuning the 12r over and above what can be done with a PC3?
Its more like what CAN'T you do.  Here are some things just off the top of my head.
1) I think the biggest find was the A/B map feature. The ECU has two complete sets of Ignition and Fuel maps. Which one is used depends on an existing wire in a plug off the wire harness in the tail.
No more compromise NOS maps. Have one map tweaked for off NOS and the other optimized for on the NOS including custom ignition timing for the complete throttle and rpm range. Choose between the two at the flip of a switch.
Or maybe you do a lot of touring and want a high mileage map and a high performance map.
2) Change the throttle sensitivity. Right now half of the data in the map covers just the first 10% of throttle travel. This makes the bike easier to ride in parking lots or stop and go traffic.
However if your drag racing you need to hold that throttle at just the right spot on the launch and then its wide open Wouldn't it be nice to modify the throttle sensitivity curve to put all the sensitivity centered around the sweet spot. In other words instead of the difference between a perfect launch and a sky high wheelie being just 1 or 2 degrees of throttle travel make it 10 degrees.
3) The obvious get rid of the speed limit and customize the rpm limit.
4) The cost. While buying the device and software needed to program the ECU costs $389 you only need it for programming. It's not installed on the bike. In other words if you can borrow one for you dyno session it's free.
5) The PCIII can't change the fact that the - B1 models have a first gear only ignition map that restricts the bike between 4000 and 6000 rpm in first gear.
quote:
When will you start real road/track test?
Supra is sending me his ECU to notch so he can try it out on his bike.
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ridgeracer
Pro
Posts: 1309
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posted June 20, 2007 02:57 PM
BTW Thanks for all the praise everyone but it was definitely a group effort and I'd like to take a moment and thank those who helped make this possible
Five and Supra for getting two ECUs to me to tear apart
Supra for getting me a copy of the Flash programming software I needed.
A board member who shall remain nameless for getting me a very expensive piece of Disassembly Software
The guys at Enginuity.com for writing a beautiful piece of Freeware Map editing software
All of you who took the time to scan and post diagrams and schematics I needed and sharing your knowledge about the ZX-12 Every little clue helped.
And of course blueford for motivating me to finish this project just to prove him wrong
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ridgeracer
Pro
Posts: 1309
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posted June 20, 2007 03:30 PM
quote:
This now begs the question...whats the turnaround time to have him re-do are ECUs...and the $....
First lets be clear about which models can be modified for reprogramming:
Only the 21175-10xx ECUs have the MC68HC916R3 cpu
year ecu
2000 21175-1069 ZX-1200A1 US
2001 21175-1079 ZX-1200A2 US
2002 21175-1089 ZX-1200B1 US
2003 21175-1089
These ECUs are the newer 32 bit type and will not work (yet)
2004 21175-0038
2005 21175-0038
As for modifying the ECUs I plan to post all the required information needed to do it. Any one with a dremel tool can do it in a couple hours. I understand of course that there are those of you who have more money than time and would be more than willing to pay someone to do something you could do yourself to make sure it gets done right.
For now I am willing to modify them for free for those willing to share what they learn about remapping the ECU with the rest of us. Of course If I end up getting 10 ECUs a week I will have to rethink that.
There is still some work to do on the map definitions. We get the map data from the ECU but it's just a bunch of bytes. You have to analyze it and identify the different map areas and then write a file that says this area is the ignition map, this area is a fuel map etc.
In addition it would be nice to quantify the units. Right now for instance the ignition maps display raw map data. It would be nice if it was displayed in degrees BTDC instead. Like wise it would be nice to translate the Air pressure and air temp map data into millibars and degrees Fahrenheit.
The latest map definitions and data will always be posted here
http://www.activeboard.com/forum.spark?forumID=99460&p=3&topicID=9491456
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oldkawboy
Needs a job
Posts: 2125
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posted June 20, 2007 06:12 PM
Great job RR......
I sure am glad there are smart people with determination in this world, makes life easier for people like me!
Dan
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Texas12R
Zone Head
Posts: 545
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posted June 20, 2007 06:59 PM
Thanks for making all your findings public! It speaks volumes about your character.
First class!!!!
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dougmeyer
Needs a job
moderated
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posted June 20, 2007 08:53 PM
Very cool. Nice job!
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frEEk
Administrator
ummm... yeah
Posts: 9660
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posted June 21, 2007 10:52 AM
this all just blows me away. incredible work RR!
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TRNorBRN6001
Needs a job
Posts: 2021
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posted June 21, 2007 12:55 PM
Awesome job!!!!!!!!!!!!!!!!!!!!!
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Megabyte
Pro
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posted June 21, 2007 01:54 PM
I'm so awed by this accomplishment, I'm speechless (typeless)
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zx12mark
Pro
Posts: 1654
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posted June 21, 2007 02:35 PM
ridgeracer,could the power commander with a 0 map still be connected so if we want to bump up the fuel on low,mid or high at the track we could.
by the way both of the r/r designed gear indicators i built are still working great.
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ridgeracer
Pro
Posts: 1309
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posted June 21, 2007 03:21 PM
zx12mark: There is no reason you couldn't still use a PCIII but as I stated above the ECU has an A/B Map feature that allows you to switch between two sets of internal maps
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shiphteey
Needs a job
Posts: 2529
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posted June 21, 2007 04:46 PM
RR, this seriously kicks ass! Off the top of my head, those on the pc3r can not easily switch maps on the fly (say from nos to n/a). Of course it can be done w/the PC3USB but damn if they don't charge you almost $300 for every single component!
RR, it would be a pleasure to send you my ECU, a 2000 model of course.
Just thinking out loud, extending the rev limiter 600 RPMs or so would be nice.
As far as mapping goes, a nitroursmap with, say 3 degrees of timing taken out (incrementally from say 8k) for those us that spray on a stock motor and don't really go beyond the 70 HP threshold.
As others have stated, an n/a map would be great too, with the advance maybe tapering off up top but not needing to dip into the negatives like the nitorus map.
I am sure under the right conditions 200 mph on stock gearing is achievable with minimal mods.
I would definately be willing to report the results.
Also, I am looking at a street run in a little while against a loudmouthed 800 hp Supra....we have 3-4 miles of straight road.....I can bring the GPS so we can see what the new top speed would be using stock gearing ... or ....
I would be wililng to jockey another 12, one that is more stock that mine. While I could go putting much of it back to stock (in the name of science) there may be someone out there who is much more stock as is.
Either way, keep up the good work! Its the die hards like you that keep the 12 guys going.
A.
P.S. I experienced the 4-6kpm difference with the A1 vs the B1 first hand at the bikeland drag runs at MIR. I hopped on Shane's B1 and ran almost the same time but coming out the hole at 5k I instantly realized a "touch" more throttle could have been used....your report is inline with what I felt.
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fish_antlers
Administrator
The Truth is Out There
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posted June 21, 2007 05:08 PM
Awesome work! :THUMBUP
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capt10ed
Expert Class
Posts: 327
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posted June 22, 2007 04:38 AM
I think our Government should have an individual like you on the payrole....
Great Job!!!
Now quit sitting around and get to work on the 04/05.
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2014 Loring AFB 14 runs over 200mph
with a best of 208.1 in 1.5 miles
and 204.5 in the mile.
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VincentHill
Needs a life
Posts: 6520
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posted June 22, 2007 04:44 AM
The real hope is also that the people "STILL" Limited with the 04 & 05 Bikes may finally get to use their bikes for top speed!. My hat is off to RR. The Pit Bull of Electronics
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