Stu64
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posted June 19, 2010 05:20 PM
Fuel injection light???
What would cause the fuel injection light to come on above 10,000rpm.
I was at the track today and noticed it came on several times at high rpms.
I am using a walbro 255 pump with a 1 to1 regulator. intial pressure at 40psi.
  
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zx14r09se
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posted June 19, 2010 06:02 PM
check the codes
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01smokes
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posted June 20, 2010 08:06 AM
i get it sometimes as well only on long pulls though, i am also running a 255 with 1:1 and pressure set at 43psi.
How do i check codes?
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Stu64
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posted June 20, 2010 09:07 AM
I tried to check codes the way the manual sezs to do it,and nothing comes up. Manual sezs if the code or light doesnt stay on it may not be able to store the codes.
I am just concerned that i'am not losing fuel pressure at that high of rpm's or if the injectors are locking open?
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01smokes
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posted June 20, 2010 03:03 PM
quote:
I tried to check codes the way the manual sezs to do it,and nothing comes up. Manual sezs if the code or light doesnt stay on it may not be able to store the codes.
I am just concerned that i'am not losing fuel pressure at that high of rpm's or if the injectors are locking open?
ya i never really thought of it but im at around 95-96% on my injectors it could be the problem, like i said it only happens when im on a long WOT pull like if i go through the gears it will pop up around mid 5th my wideband is showing fine when it does come up
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dubious
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posted June 20, 2010 09:37 PM
stu are you on stock injectors?
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chrisdhall
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posted June 21, 2010 01:15 AM
 Edited By: chrisdhall on 21 Jun 2010 09:15
Are you sure it isn't the "shift light" that's illuminating? The setting might be 10,000rpm. If there was an FI error this would flash up on the dash.
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Stu64
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posted June 21, 2010 02:55 AM
quote:
stu are you on stock injectors?
Yes, stock injectors 7psi spring in wastegate.
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Stu64
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posted June 21, 2010 02:56 AM
quote:
Are you sure it isn't the "shift light" that's illuminating? The setting might be 10,000rpm. If there was an FI error this would flash up on the dash.
I have the factory launch and shift lights turned off.
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dubious
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posted June 21, 2010 04:14 AM
Edited By: dubious on 21 Jun 2010 12:15
your running out of injector my good friend.
The stockers won't keep up beyond 8-10 psi boost with 7:1 rising regulator
thats 90 psi at 7 lbs or 110 psi at 10 lbs boost
have you checked your plugs ?
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speedgene
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posted June 21, 2010 08:34 AM
Edited By: speedgene on 21 Jun 2010 16:49
1. I have a walbro in the loop, the OEM is out of the loop.
2. I hit 10,000 rpm, OEM says, 'WOThe fuck is 40 pee yes I said I am 4 pounds down, so here, take that dash count; I can count pounds is something is gonna code your ass either in dis assumption is no way hose say can you see, the light comes on at 10K is say, how come that light is not on at start up? She, the walbro, is preset at 40 psi, the OEM is set at 44, so, forget the seen your moment, I thought I could get that to walk is sea of clues you in the re-step is WATT the fuck!
3. Or, maybe you hit the rev limiter, it's coming up soon, so lets set the linear soft and climb rich. And the pressure push says more, I am about to rich the bitch up is watch the fuel line trim like you need more fuel the bike runs rich more at the top is the power drop?
4. Yes, or No?
And I'm not even close to the answer. But, no light in the beginning means, no code. It blinks, then clears. Get it? No code again. A phantom spike you have that OEM fuel pump out of the loop messing with a pressure it reads electrically. Get it? Sort of that practical way of thinking out that secret dash blink the manual does not tell you anything about.
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dubious
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posted June 21, 2010 10:15 AM
Edited By: dubious on 21 Jun 2010 18:16
the stock injectors can't supply enough fuel at 47 psi fuel pressure with 7 psi boost
I am 99% certain you must be beyond 95% duty cycle... 
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NINJA12
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posted June 21, 2010 10:36 AM
06 or 08 injectors.
I think the 08 are bigger , right?
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Stu64
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posted June 21, 2010 02:43 PM
Edited By: Stu64 on 21 Jun 2010 22:43
I have the 06 injectors which i read somewhere on here that they flow more than the 08 and up.
If the injectors are to small then why didnt ZX Bob have any issues with his kit? He was running 7psi with boost creep to 11 on top???
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gilberjj
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posted June 21, 2010 03:33 PM
quote:
the stock injectors can't supply enough fuel at 47 psi fuel pressure with 7 psi boost
I am 99% certain you must be beyond 95% duty cycle...
He has the bosch 725s.
Also, Adams said they have made 340-350 on stock injectors and pump.....
http://psychobike.com/forums/kawasaki-zx12r-zx14/38550-injectors-zx14.html
I don't know how that's possible.... I also remember reading that someone has made 375 whp on stock injectors. I don't know how people are getting that much power out of the stock injectors.
I'll be happy with 300 whp on the stock injectors with a 255 pump and rising rate fpr.
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speedgene
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posted June 21, 2010 03:34 PM
'06 injectors are rich. Search, 'fuel injection duty cycle', or 'fuel injection calculator.'
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gilberjj
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posted June 21, 2010 03:38 PM
quote:
06 or 08 injectors.
I think the 08 are bigger , right?
06 are around 420cc, and 08+ are about 330cc
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dubious
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posted June 21, 2010 06:07 PM
gilber, Stu said he has stock injectors.
Stu, yes zxbob was running stock injectors but with 7:1 rising rate regulator.
he was making 110 psi FP at 10 psi boost
Gilber wher you getting yur numbers cause I was told the 08 injectors flowed more amd thats what I read several times long ago. got a link cause I like to see those numbers confirmed for my own purposes, not for pissing match but for my own use.
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Stu64
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posted June 21, 2010 06:43 PM
Lyle im using the same regulator that came with the kit. Spa turbo
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dubious
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posted June 21, 2010 06:51 PM
Edited By: dubious on 22 Jun 2010 02:51
that black one is supposed to be ~7:1 rising rate regulator.
what your fuel pressure at 7 lbs? should be about ~90
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dubious
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posted June 21, 2010 06:54 PM
06 injectors are 10 holes, 08 are 12 holes
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Stu64
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posted June 22, 2010 09:39 AM
quote:
that black one is supposed to be ~7:1 rising rate regulator.
what your fuel pressure at 7 lbs? should be about ~90
Not sure,hard to see that little fuel gauge. Maybe i have it set to high, i have the set screw all the way in. I looked at the plugs,they do not look to bad,porcelin is white, base of plug is light tan color.
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gilberjj
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posted June 22, 2010 09:41 AM
Lyle, I'm working on finding out exactly where I saw the flowed numbers.... but while I was searching, I dug up this old thread. 374whp on stock injectors.... insane!
http://www.bikeland.org/board/viewthread.php?FID=27&TID=33527
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gilberjj
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posted June 22, 2010 09:53 AM
quote:
gilber, Stu said he has stock injectors.
Stu, yes zxbob was running stock injectors but with 7:1 rising rate regulator.
he was making 110 psi FP at 10 psi boost
Gilber wher you getting yur numbers cause I was told the 08 injectors flowed more amd thats what I read several times long ago. got a link cause I like to see those numbers confirmed for my own purposes, not for pissing match but for my own use.
Holy crap.... you better love me forever. That took me forever to find....
quote:
Had 10 hole 2006 zx14 injector flowed about a ago year injector flow range from 408 to 412 cc per minute, had 08 12 hole injector flowed 2008 zx14, injector flow range from 330 to 340 cc per, using 08 injector will atomize fuel better, however you will have to increase pulse width about 8 to12%
quote:
Yes Roy from the numbers I recieved 08's flowed less than 06/07, both sets flowed by MPS , if you have both style injectors take a close look at the size of the hole of 10 hole injector compared to the 12 hole, yes 08 has 12 holes, but they are much smaller then 10 hole. When I tried 12 hole injector AFR went from 12.6- 12.9 at idle to 13.8-14.2, I had to add fuel 10-12 % low rpm, 8-9% mid, 7-8% high rpm. Did not see any performance advantage.Testing was track testing, no dyno comparsion.
http://www.bikeland.org/board/viewthread.php?FID=27&TID=54642&set_time=1272500292
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gilberjj
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posted June 22, 2010 04:22 PM
Edited By: gilberjj on 23 Jun 2010 00:23
Chrisrok made 360 on the stock injectors too!
http://www.bikeland.org/board/viewthread.php?FID=27&TID=40554&pagenumber=1
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