entropy
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posted December 25, 2004 02:46 AM
Extended rev limit: DaveO & DBD ECU mod
I will soon get this ($200 + shipping) mod done; it apparently adds 580rpm to the 12's 11.6k revlimiter. SH.org has extensive posts on this issue.
TheMotorHead endorses the mod 110%, so that's more than enough for me. It does take a bit of remapping the AF, so i need to wait till Cheese gets back from vacation.
I'm not looking to change my current 11.2 shiftpoint, rather i just want to prevent going into the limiter. My motor hates going into the limiter, as does my button shifter (in this case Bergie has a point on footshifting, NOT that I wanna ever return to footshifting).
Anyone have direct experience on this ECU mod???
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MadMike
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posted December 25, 2004 01:48 PM
I will very soon! LOL... looks like we were thinking the same thing Karl....
MM
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entropy
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posted December 25, 2004 04:08 PM
Mike, are you talking to DBD or DaveO???
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Johnnycheese
Pro
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posted December 25, 2004 05:18 PM
I am using Dave O.
Feliz Navidad Senor Karl.
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MadMike
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posted December 25, 2004 08:15 PM
DBD.... I believe out of Indy?
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Megabyte
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posted December 25, 2004 09:23 PM
Can we get contact info for this mod?
Thanks,
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entropy
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posted December 26, 2004 02:15 AM
quote:
I am using Dave O.
Feliz Navidad Senor Karl.
.
Hey Dr. JohnnyC!!!!!!!
You having fun on vacation????
When are you getting back to Paradise? (Texas) 
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Lorcan
Expert Class
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posted December 26, 2004 03:26 AM
Talking to Brad at BTC Moto Electronics here in the UK about it and he says it also affects ignition timing so needs either a PC3R or a PC3 + Schnitz box to sort it out. On 04 bikes or any others with secondary butterflies it needs those wiring open too.
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bossman12r
Zone Head
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posted December 26, 2004 04:41 PM
I can't believe the zx12 is getting modes like the Bus.
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TurboBlew
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posted December 26, 2004 07:59 PM
hehe... this is on the too do list as soon as I can get my bike up to Kevins to do a before and after dyno.
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kzz1
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posted December 27, 2004 05:51 PM
 Edited By: kzz1 on 27 Dec 2004 17:53
I am not sold on the extended ECU....
1) If you are looking for more RPM's to carry the power. The extended ECU on our Busa, caused a dip in power starting at redline. I actually lost hp by waiting longer to shift. Tried to map it out on the dyno and could not.
2) If you plan on using it just to save going into the limiter....If the limiter is not where you want the motor to go then why would you want to increase your RPM by 500 and then hit the limiter......If the factory limiter can cause damage, lets see what happens when you add another 500 RPM's and then hit the limiter.
Now if you are good and never hit the extended limiter then I guess it would be OK.
ZX12Girl
(Using Kzz1's computer)
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entropy
Moderator
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posted December 27, 2004 11:28 PM
Edited By: entropy on 28 Dec 2004 14:37
angie,
i am planning on getting it done, but i am not planning on upping my shift point (11.2).
Like you say, i just want a lil more insurance that i don't hit the limiter.. Hitting the limiter seems to be "bad juju" for my heap 
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TurboBlew
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posted December 28, 2004 06:41 AM
Muzzys has spun a ZX12 motor to 14,000... I hardly see where the extended ECU couldnt be a benefit.
Stock bikes with a pipe pull hard ALL the way to the limiter... meaning no drop in power at peak RPM. Add another 550-600rpm...to that.
If I can run the 1/8th in 2 gears, its worth an easy 1/10th & 1mph on a ZX12. Havent you ever been running the 1/4 and ran outta RPM right at the finish??
For $200... I dont see how you can go wrong.
quote:
I am not sold on the extended ECU....
1) If you are looking for more RPM's to carry the power. The extended ECU on our Busa, caused a dip in power starting at redline. I actually lost hp by waiting longer to shift. Tried to map it out on the dyno and could not.
2) If you plan on using it just to save going into the limiter....If the limiter is not where you want the motor to go then why would you want to increase your RPM by 500 and then hit the limiter......If the factory limiter can cause damage, lets see what happens when you add another 500 RPM's and then hit the limiter.
Now if you are good and never hit the extended limiter then I guess it would be OK.
ZX12Girl
(Using Kzz1's computer)
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zx10r-04
Parking Attendant
Posts: 1
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posted January 10, 2005 09:40 AM
does anybody have DaveO's number so i can have the work done on a 04 zx10r
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oldkawboy
Needs a job
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posted January 11, 2005 05:02 AM
I know after I changed my cam timing, my bike's hp is still climbing (barely) at the revlimiter.....I'd try one.
Dan
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bossman12r
Zone Head
Posts: 513
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posted January 11, 2005 07:21 PM
I would think that the timing of 107/110 is what is needed for the higher rpms.
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entropy
Moderator
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posted January 12, 2005 05:58 AM
we'll soon see what the mod does, JohnnyCheese sent off a "spare" ECU to DaveO, i'll put my heap on the dyno with it on 1/21 or 22.
goddamn weather, rain-ish last weekend, temps plunging into 50's this weekend. no track????
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kawachan
Pro
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posted January 13, 2005 05:02 PM
What is the contact info for this guy??
I am anxiously awaitng JC's results!!
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entropy
Moderator
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posted January 14, 2005 12:58 AM
chan,
DaveO is one o they 2 guys who do this. Go onto suzukihayabusa.org and search on extended ECU.
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TurboBlew
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posted January 14, 2005 05:11 AM
Chan..... its Matt Wright at Dragbikedirect.com
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entropy
Moderator
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posted January 14, 2005 06:49 AM
quote:
Chan..... its Matt Wright at Dragbikedirect.com
or DaveO, they both do it.
JCheese has the hookup with DaveO so that's where mine is going, but both of them say that they both do a good job.
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Ra12r
Zone Head
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posted January 14, 2005 08:16 AM
http://www.bikeland.org/board/viewthread.php?FID=13&TID=9358
Does anyone know how this mod is accomplished?
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entropy
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posted January 14, 2005 09:55 AM
i am under the impression is is done w/clock speed but am not sure
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Ra12r
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posted January 17, 2005 09:07 AM
Reason I am actually wondering is because if you can "edit" the revlimiter, then would there be a editing limit? IE: raise the limit by 1000rpms instead of 506rpm's.
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entropy
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posted January 17, 2005 09:29 AM
i don't think it is editing, i really think it has to do with clock spped
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