ninja12
Needs a job
Posts: 3310
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posted November 11, 2007 06:28 AM
I want one.
  
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ridgeracer
Pro
Posts: 1309
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posted November 11, 2007 07:12 AM
quote:
On JC's dyno on Sat, i tested:
DaveO modded ECU (5% incr in clock speed), rev limit = 12.200rpm
RR's remapped ECU ( RR magic in hacking), rev limit = 12.500rpm
Kudos to RR!!!!
Thanks. Glad to hear it worked and more importantly right on the money. 12,500 was the limit I set yours for.
"Dyno Tested and Entropy Approved" That's the Good Housekeeping seal of approval right there.
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ridgeracer
Pro
Posts: 1309
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posted November 11, 2007 07:17 AM
quote:
I want one.
http://www.activeboard.com/forum.spark?forumID=99460&p=3&topicID=14137165
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entropy
Moderator
Posts: 8671
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posted November 11, 2007 08:46 AM
Thanks a million RR, YOU ARE DA MAN!!!
now the question is: why not do the RR extended limiter AND the DaveO 5% clock speed change??
Get 13,125 rpm limit.
I know that i am playing with fire wrt piston speed, but my motor is still building hp at 12400; another 600 rpm might be useful...
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This moderator uses moderation in moderation
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johnnycheese
Pro
Posts: 1008
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posted November 11, 2007 09:47 AM
Now you got me thinking about one for the old coppertop Busa
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Builder and tuner of some of the fastest N.A. and P/A Hayabusas and ZX12 /14 in Texas
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 11, 2007 11:55 AM
couldnt RR just set the limit higher without needing the crystal mod?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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entropy
Moderator
Posts: 8671
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posted November 11, 2007 12:47 PM
quote:
couldnt RR just set the limit higher without needing the crystal mod?
KZ,
I am under the impression that 12500 is as high as he can go.
BTW,
I don't see any downside in the crystal mod. I am pursuing the RR mod, because setting the rev limit to 12500 is just the tip of the iceberg.
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This moderator uses moderation in moderation
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entropy
Moderator
Posts: 8671
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posted November 11, 2007 12:48 PM
quote:
Now you got me thinking about one for the old coppertop Busa
JC,
i don't know the status of RR's work with Busa ECU's...
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This moderator uses moderation in moderation
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ridgeracer
Pro
Posts: 1309
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posted November 11, 2007 03:13 PM
The software RPM limit is 12,700. The size of the variables used in the software limits how large the different values can be. The software can't go over 12,700 without going to the next largest type which would mean rewriting all the code.
As for the Busa, the '99 thru '01 are programmable with the same hardware method as the zx12. I've only looked at the software for a '99 and 50% of it was line for line identical to the 12, including most of the RPM limiting software. So while I haven't really even started to dive into the Busa software I already found the rev limit routines so I'm pretty confident I could up the revs on an early model busa too.
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted November 12, 2007 04:04 AM
RR,
How about piggy backing the coils and injectors? would that overload the drivers? Or would the signal from cyl 1 and 2 need to be sent to another gizmo to fire the two piggybacked injectors and coils? Maybe that would be easier?
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Y2KZX12R
CompetitionCNC.com
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countersteer
Needs a job
Didn't read the owners manual
Posts: 2207
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posted November 12, 2007 12:50 PM
ridge, this actually does make a lot of sense to me as im taking an assembler course in school this semester. this thread actually made me rethink the direction i wanted to take with my comp sci skills, maybe i could work with ECU's some day. thanks for the knowledge bro 
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Scott
Long Island, New York
2006 ZX-14, 2003 ZX-12R
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ridgeracer
Pro
Posts: 1309
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posted November 12, 2007 07:18 PM
quote:
RR,
How about piggy backing the coils and injectors? would that overload the drivers? Or would the signal from cyl 1 and 2 need to be sent to another gizmo to fire the two piggybacked injectors and coils? Maybe that would be easier?
I would not double up the coils or injectors. Its sure to over stress the drivers.
I wonder if you could use a PCIII with the ecu side inputs wired together and use that for your gizmo?
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ridgeracer
Pro
Posts: 1309
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posted November 12, 2007 07:41 PM
quote:
ridge, this actually does make a lot of sense to me as im taking an assembler course in school this semester. this thread actually made me rethink the direction i wanted to take with my comp sci skills, maybe i could work with ECU's some day. thanks for the knowledge bro
Your welcome. If there is one thing I would suggest to someone in your position is to stick with firmware and/or hardware. Its just to easy to outsource software only jobs overseas these days.
If your job involves being hands on with the hardware it makes it harder to outsource, not impossible, but less likely in my experience.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 12, 2007 08:01 PM
now Karl is pissed, he could have had 200 more rpms. lol jk 
so 12700 is the limit of the rr mod, add the dave o mod and the new total is 13335. damn thats spinnin lol. so based on piston speed(?) that may be too much for a stroker?, but ok for a stock stroke motor???
haha rev it like a 636
actually...that gives me an idea, i may be waaay off base, but could part of the code from a smaller displacement bike that normally revs higher than a 12 (like a 636) be used to up the limit of the 12s 12700 rpm(software) limit? i know its not a cut n paste deal, but maybe something to look into??
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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ridgeracer
Pro
Posts: 1309
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posted November 12, 2007 10:39 PM
Sometimes I take it for granted that you guys have read this entire thread....and committed it to memory. Let me do a little review here
The CPU only uses a 4HMz crystal but runs internally at 32MHz. It can do that because it has a PLL clock multiplier circuit built it. In layman's terms that means you can do a Dave0 mode with out physically replacing the crystal. Just mod the clock setup routine software to up the internal clock speed.
In other words you can do a daveO mode by reflashing the ECU software. And your not limited to 5% Also, Theoretically, you should be able to compensate the other parts of the code so it only effects the RPM, not the injectors.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted November 14, 2007 01:56 PM
Oh very cool, yeah some of this thread is over my head:P. the things you can do just amaze me sometimes. thx for breaking it down. i didnt realize that you could do the "dave o" mod with a reflash. is it kind of like over clocking a desktop computers cpu? (something i have allways wanted to try, but never learned enough to try it :P)
so if you change the clock speed, how do you compensate for the injectors? make the fuel maps on the ecu a bit richer everywhere? or do you have a way to change the code so the injectors run on "normal" clock speed?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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barjout
Parking Attendant
Posts: 7
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posted December 03, 2007 01:31 PM
I can't believe this tread is dead !!!
Any update ??? Can we follow it somewhere else ?? This was getting good and
pouffffffffff nothing !!!
I was almost tempted to send my 2003 ecu to get it done ________________
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ridgeracer
Pro
Posts: 1309
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posted December 05, 2007 11:35 AM
Thread is not dead....just out of town for the holidays?
This is a bad time of year for me as far as free time goes with end of year deadlines at work, holidays, kids out of school, etc.
Here is where we are at closing out the year.
The rev limit extension is a done deal. It has been proven to work on several different versions of ZX-12s.
I'm currently working with a guy on the east coast who purchased a spare ECU on eBay, successfully notched and modified it himself, purchased the equipment needed to do his own programming and built a small programming power supply that plugs into the wire harness diagnostic plug so he can program the ECU without taking it off the bike. Very soon he plans to start modifying the fuel maps and road testing the bike. His first tests will be to try to get rid of the Muzzy pipe glitch by changing the VE maps.
This is the critical next step in the project; getting bikes out there with modified ECUs and start collecting data on the effects of map value changes. I don't have a ZX-12 anymore so there is not a lot I can do in this regard.
I've also been helping out with figuring how to remap the newer 32 bit Denso ECUs used in the Busas, SV1000 and ZX-6s
BTW I've been meaning to ask you guys this. Is the 2004 ZX-12 a 32bit denso unit or is it a Mitsubishi unit like the ZX-10 and ZX-14.
On my list for next year is
Define the total map list in the A2 and B1/2 as I have in the A1
Figure out how to turn on the telemetry output so I can collect data directly from the ECU
Experiment with maps on my emulator to figure out the map values better.
Hook up the Mixture Adjustment Device ('Yoshbox' for a ZX-12) that I designed to see how well it works.
If you want to follow along or contribute to the technical discussion of this project you can go here...
http://www.activeboard.com/forum.spark?forumID=99460
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TRNorBRN6001
Needs a job
Posts: 2021
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posted December 12, 2007 07:16 AM
Very cool site!
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TFA 200MPH CLUB MEMBER!
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Texas12R
Zone Head
Posts: 545
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posted December 16, 2007 05:29 AM
I hope to see some work on the 32 bit ecu's, but I wont hold my breath 
It kinda pisses me off that I bought an 05......but I still like it!
I just wont be able to benifit from all the EXCELLENT work that has been done.
I think RR was missnamed, but Merlin is curiously close
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ridgeracer
Pro
Posts: 1309
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posted December 16, 2007 08:07 AM
Actually we have cracked the 32 bit Denso ECUs
Someone just did the '04 ZX-6 others include an '06 busa, a 32bit Z1000 and an '07 SV1000
I'll ask again what I asked upthread.
Does anyone know if the 05 ZX-12 ECU is Denso or Mitsubishi?
Maybe you should go take a look at yours Texan12R
quote:
I think RR was missnamed, but Merlin is curiously close...
Actually I've been called that by my coworkers at more than one job over the years 
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Texas12R
Zone Head
Posts: 545
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posted December 17, 2007 05:40 AM
I apologize for not reading the aforementioned....and for being up too many hours on swingshift and still attempting to communicate
My 05 zx12 has a Denso Ecu
21175-0038
112100 2150
12v TBCF45 (E) Rev#?
I hope to obtain a spare ecu that can go under the scope.
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ridgeracer
Pro
Posts: 1309
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posted December 17, 2007 06:20 AM
 Edited By: ridgeracer on 17 Dec 2007 06:22
Good deal. I'm glad to hear that. I've always kind of felt bad that this project started with the zx-12s but that the guys with the newer bikes didn't get to join the party.
Just to be clear, the very first example of a 32 bit zx-12 will need to be totally exposed so we can trace down the wire harness connectors to the CPU pins. It doesn't need to be a working one either. The best candidate is one that has a blown injector or coil channel. It isn't any good on a bike but the CPUs still work.
On the upside it appears you don't have to notch the 32 bits to program them and you don't need to buy the expensive $200 piece of hardware and expensive software like you do for the older ones. They can be flashed through the wire harness with a simple rs232 to TTL converter ($20) connected to your laptop.
The way it works is you can WRITE to the ECU through the harness but you can't READ it. This means you need to open up one ecu to get a copy of the software that you can then modify and flash into other unmodified ECUs of the same model.
I know there have to be a number of broken ECUs out there. Unfortunately nobody sells those on ebay as they think they are worthless.
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2000redrocket
Pro
Posts: 1662
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posted December 23, 2007 09:17 PM
mery christmas everyone.
RR i am betting i will end up getting a new battery before i start programing. there goes more denaro. am thinking on getting a wide band O2 sensor soon also.
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TRNorBRN6001
Needs a job
Posts: 2021
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posted January 03, 2008 03:12 PM
If you need more testers, I can report for duty. Just picked up second ECU for the
old 2000 ZX-12.
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TFA 200MPH CLUB MEMBER!
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