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Chip identification please

V700Steve

GT Reference
GT di Razza Pura
Joined
Dec 8, 2008
Messages
1,180
Location
Atlanta area, GA
May be from Moto Int in Seattle at the time bike was modded. I had 5 different ones for that ECU, some German, some from Au, some from Mot Int, There was also Creeden here in US.
It doesn't look familiar.
 

GTM®

Administrator
Staff member
GT di Razza Pura
Joined
Jul 1, 2009
Messages
12,460
Location
Malibu
Thanks Steve. I don't recognize that one either. Once the flash devices got cheap, everyone could burn one (me included). Hate to do this to you Mark, but this Forum might give you a better shot at an answer; centauro-owners.com/phpBB2/viewforum.php?f=1 -- hope you come back though. ;)
 

PaulDavies

Cruisin' Guzzisti
GT Contributor
Joined
Aug 30, 2016
Messages
334
Location
Comox, BC, Canada
I hope someone will help me to decipher the chip on my newly acquired (and slightly modified) '93 Daytona.
Thanks in advance!!!


View attachment 24034

Can't comment on the data stored in the chip, or who might have blown it, but if it is relevant or of interest, the 27C128 is an ultra violet erasble PROM (programmble read only memory). Peel back that label and there is a glass window that allows you to see the actual silicon (awesome under a microscope).

The chip has to be taken out of the board to be erased and then blown using special equipment (a PROM programmer and UV eraser obviously) hence the need to put the chip in a socket for easy removal and to protect it from UV light with a sticker over the window. It's kinda obsolete technology from the late 80's, but you can still buy them. It's largely been superceeded by Flash and EEProms that allow in-situ erase and program without special equipment or removal from board.

Deffo not a case of just hooking up a laptop and re-programming with this one
 

scottmastrocinque

Scott Mastrocinque
GT di Razza Pura
Joined
Jun 26, 2011
Messages
1,785
Location
Findlay, Ohio
Will Creedon was THE AUTHORITY on the chips for these early 4V bikes (Daytona, V10-Centauro). He developed the best ones that went all over the world.

He is contactable via the Centauro Owners Group. Do a member search and send him a message.

He still sells his “C5” chip and if anybody knows what you have from those markings, he will.

centauro-owners.com

I am from San Diego and know Will personally. He’s a great guy. Old like me now. 😆😆😆

I have his C5 chip in my V10-Centauro.
 

Mark Getrow

Just got it firing!
Joined
Jan 10, 2022
Messages
7
Location
Vancouver, CANADA
Will Creedon is THE AUTHORITY on the chips for these early 4V bikes (Daytona, V10-Centauro). He developed the best ones that went all over the world.

He is contactable via the Centauro Owners Group. Do a member search and send him a message.

He still sells his “C5” chip and if anybody knows what you have from those markings, he will.

centauro-owners.com

I am from San Diego and know Will personally. He’s a great guy. Old like me now. 😆😆😆

I have his C5 chip in my V10-Centauro.

PM sent, thanks form another old guy ;););)
 

scottmastrocinque

Scott Mastrocinque
GT di Razza Pura
Joined
Jun 26, 2011
Messages
1,785
Location
Findlay, Ohio
PM sent, thanks form another old guy ;););)

I responded.

I do want to clarify that there are indeed, others who did not like Will’s chip. It’s a matter of taste and opinion.

For my Centauro, it worked well but there were those with 1100 Sports that had potential problems due to the rich fuel settings Will tended to use.

These chips were all back in the early years and all seat-of-the-pants designs. Nobody had sophisticated dynos at motorcycle shops back then except New York Mike at San Diego Harley.

Will’s stuff certainly was not dyno developed and dyno tested like my full setup from Todd on my Stelvio NTX.

I offer the information and as a direction for you to follow perhaps, and not as a perfect solution.

Good luck.
 
Last edited:

Mark Getrow

Just got it firing!
Joined
Jan 10, 2022
Messages
7
Location
Vancouver, CANADA
I responded.

I do want to clarify that there are indeed, others who did not like Will’s chip. It’s a matter of taste and opinion.

For my Centauro, it worked well but there were those with 1100 Sports that had potential problems due to the rich furl settings Will tended to use.

These chips were all back in the early years and all seat-of-the-pants designs. Nobody had sophisticated dynos at motorcycle shops back then except New York Mike at San Diego Harley.

Will’s stuff certainly was not dyno developed and dyno tested like my full setup from Todd on my Stelvio NTX.

I offer the information and as a direction for you to follow perhaps, and not as a perfect solution.

Good luck.

I understand. I'm rather familiar with ICE development and what's involved.... this is just my natural curiosity looking for answers.
I always try to thoroughly research my new_old acquisitions 😅

Thanks for your time, much appreciated!!
 
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