Connman
Zone Head
Posts: 506
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posted January 02, 2006 09:46 PM
High altitude and the effects on the 12
Ok, so some of you know I'm doing a lot of high altitude riding.
The lack of o2 really knocks the 12 down in the HP category.
What are my options? Will a PCIII alone resolve the issue?
  
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blitzkrieg
Needs a job
Road kill = Free lunch.
Posts: 2044
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posted January 02, 2006 09:54 PM
 Edited By: blitzkrieg on 2 Jan 2006 21:56
High Altitude ECU bro. 
Start there. Kawasaki (I believe) will do a one time replacement for you under warranty.
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Connman
Zone Head
Posts: 506
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posted January 02, 2006 10:01 PM
No shit? Didn't know there was sucha thing.
So which Kawi dealer are you going to take me to, to sweet talk me into one of those? 
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blitzkrieg
Needs a job
Road kill = Free lunch.
Posts: 2044
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posted January 02, 2006 10:08 PM
Well, you'll have to put those mapquest directions I sent you to use to find out, huh?
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Connman
Zone Head
Posts: 506
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posted January 02, 2006 10:16 PM
I NEVER GOT'EM ! Awww man, you sent them to my yahoo addy didn't you. DAMMIT!
put this in your address book.... craig.conn@comcast.net
My bad......and here I was thinking you just didn't want to give me a new year's kiss...LOL!
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Outsiderzx12r
Zone Head
Street Racer
Posts: 841
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posted January 02, 2006 10:32 PM
I don't know about Blitz's directions..... 
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OutsiderZX12R
2000 ZX12R-A1
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tuusinii
Pro
Posts: 1031
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posted January 03, 2006 05:29 AM
Whatever You do You'll HP:s are down, but right compensation gives the best possible. I think that the High Altitude ECU was only for the '00 year. The later ones didn't had problem - so had HA ECU from the start. I got mine changed under warranty. It gave a little better response also in low altitudes and held the RPM:s better on altitude.
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TRNorBRN6001
Needs a job
Posts: 2021
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posted January 03, 2006 06:27 AM
Dang, what does an ECU cost from the dealer? must be about
a half grand!
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TFA 200MPH CLUB MEMBER!
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ninja12
Needs a job
Posts: 3310
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posted January 03, 2006 11:02 AM
Can you just take fuel out with the pc3.
High Altitude = less air
less air = less fuel requirements.
Bike is running rich.
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TRNorBRN6001
Needs a job
Posts: 2021
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posted January 03, 2006 11:15 AM
I think thats what it does, if ya got the r then a touch of timming too. USB
kind of neat too. If ya get crazy grab a bung and do a little logging.
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TFA 200MPH CLUB MEMBER!
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TedG
Moderator
Posts: 8222
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posted January 03, 2006 01:46 PM
Think of it this way:
Less air = less compression. Not as much air to squeeze. There are a few things one can do to compensate a tiny bit.
1. Drop down your octane rating. At 4500 feet one loses almost 2 points in compression. No need for the high octane rating.
2. Bump the timing up a bit. The advance curve is set to minimize pinging, There is less pinging at altitude.
3. Make sure the mixture is right, although modern computers compensate well. They have a barometric pressure sensor and they compensate for the altitude.
4. Raise your compression ratio, This is probably one of the more effective mods you can do. If you raise it, you must run the high octane fuel again and bump back the timing if you did either.
Remember just leaning out the mixture only = less fuel + less air = less power
I have a 2000 12 that runs flawlessly with the stock ECU (not the high altitude). The high altitude ECU was only to clear up an idling and throttle response problem. .
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Ted
2000 Green ZX12 sold
The fast color!!
Green 2005 ZX10R
2009 Concours Black ABS
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