wrongway
Pro
Posts: 1078
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posted May 15, 2009 08:49 PM
what changed on the 08-09 ?
Why is there a different PC3 for these models ? I know that the fuel injectors and the ecu map chaged, but it seems to me that only the mapping would change .... did the TPS or wiring harness also change ?
I guess the question is , " Can I put an '08 ECU in my 06 bike ?"
I have seen 1 post that the PC5 also works on the 07, and that implys that there is no change ...
Anyone have any real info ?
Roy
  
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Compton
Zone Head
Posts: 969
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posted May 15, 2009 11:39 PM
main harness is different. injector wiring appears to be the same.
____________
b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
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wrongway
Pro
Posts: 1078
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posted May 26, 2009 06:48 PM
quote:
main harness is different. injector wiring appears to be the same.
I picked up a wiring harness, ECU , and throttle bodies off of an 08 for 200 bucks. wiring harness looks the same so I put the 08 ECU in the 06. It starts and runs without throwing any codes. It does idle higher so there is something going on with fuel , I think.
right now I am thinking that a couple things have changed...
1. fuel injector flow rate ( I had read that in one of the other threads)
2. fuel pressure ( I would assume that the pressure would have changed for higher flowing injectors)
3. TPS resistance at idle. Anyone have a manual for an 08 ? I think the 06 was .61-.68 volts at idle.
with the horsepower being the same between the 2 models, it would seem that the same amount of fuel delivered would be the same. I was hoping that the dwell time on the new injectors on the newer models would be lower, leaning up the 06 setup if the 08 ECU is used
I need to check the AFR and see if that is correct. It would be nice to be able to upgrade the ECU on a stock bike and get the increase in low end power that the newer bikes have. And maybe figure out a combination to lean up the bike at high rpm so a PC3 isnt needed .
Roy
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KaiBosh
Novice Class
Posts: 66
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posted May 27, 2009 01:29 AM
Kawi pretended they fixed the flies issue - they didn't. YANK THEM.
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davisag
Expert Class
Posts: 103
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posted May 27, 2009 02:44 AM
hi
i fitted the 08 injectors on my 06 model, and despite the 08 injectors having 2 extra spray holes, they deliver much less fuel, big numbers had to be added to my power commander .
does seem to be better fuel economy now , cannot say about power as i made cam timing changes and they did not work so have tried some different numbers
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wrongway
Pro
Posts: 1078
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posted May 27, 2009 04:13 AM
quote:
hi
i fitted the 08 injectors on my 06 model, and despite the 08 injectors having 2 extra spray holes, they deliver much less fuel, big numbers had to be added to my power commander .
does seem to be better fuel economy now , cannot say about power as i made cam timing changes and they did not work so have tried some different numbers
big on the top end ? or the entire map ? how much aer we talking ,,,, 20 or higher ?
Roy
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BobC
Pro
Posts: 1736
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posted May 27, 2009 05:08 AM
quote:
hi
i fitted the 08 injectors on my 06 model, and despite the 08 injectors having 2 extra spray holes, they deliver much less fuel, big numbers had to be added to my power commander .
does seem to be better fuel economy now , cannot say about power as i made cam timing changes and they did not work so have tried some different numbers
It's advisable to change one thing at a time when you're experimenting.
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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davisag
Expert Class
Posts: 103
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posted May 27, 2009 09:40 AM
hi roy
on 10 per cent throttle it averages plus 40 and 60- 100 per cent throttle averages plus 20 so it is not uniform
when i first fitted them fuel consumption plunged , as it was natural to think richness , but in fact they needed a lot added with the 06 ecu
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Beondwacko
Expert Class
Posts: 393
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posted May 27, 2009 10:23 AM
 Edited By: Beondwacko on 27 May 2009 18:24
I wonder is the 1st gen and second gen run the same fuel pressure even though they use different injectors.
____________
08' Atomic Silver, PCIII, Brocks pipe,BMC, -1, strapped front end
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wrongway
Pro
Posts: 1078
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posted May 27, 2009 12:57 PM
i would doubt it ...
but I am confused.... I would have thought the injector ratings would have been at some standard pressure , and the newer injectors have a higher rating.
so with the same pump ( pressure ) the new injectors should have been richer with the 06 stuff ...
Roy
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wrongway
Pro
Posts: 1078
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posted May 27, 2009 07:35 PM
quote:
It's advisable to change one thing at a time when you're experimenting.
I hooked up the computer and measured the AFR at idle and at 2500. With just the ECU change , the 08 ecu runs just a litlle richer ( 14.0 vs 13.5 at idle). It looks like it is not much different than the 06. I will try to get to the track on sunday and do back to back runs with both ecu's and log the data. Now I am guessing that the the big differences are the fuel pump and the injectors.
I do have bored out throttle bodies , pipe ,SB6 ignition and PC3 , but I would think that swapping just the ECU and logging the data will show the relative differences in the ecu maps.
Roy
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