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BIKELAND > FORUMS > ZX12R ZONE.com > Thread: breaking up under boost NEW TOPIC NEW POLL POST REPLY
crean


Parking Attendant
00 zx12r turbo
Posts: 3
posted May 26, 2015 12:57 PM        
breaking up under boost

i picked up a 2000 zx12 turbo and its breaking up bad under boost and i cant figure out why. replaced plugs and gapped smaller. tried new coils. fuel pressure seems fine but cant view while riding. just replaced the old PC3R with a PC5 with auto tune. still wont let me rev past 7500rpm with any power. Im lost and need help. I anyone has had this problem please help.

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KZScott


Needs a life
high on speed
Posts: 7221
posted June 12, 2015 07:06 AM        
who tuned it?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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frEEk


Administrator
ummm... yeah
Posts: 9650
posted June 12, 2015 07:16 AM        
Funny, I'm having the same issue with a stock engine. Just flat after about 7k rpm.
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crean


Parking Attendant
00 zx12r turbo
Posts: 3
posted June 15, 2015 12:36 PM        
i figured it out. the secondary fuel box was dead replaced the box and it runs like a raped ape now.
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frEEk


Administrator
ummm... yeah
Posts: 9650
posted June 15, 2015 04:15 PM        
Glad you got it figured!

but
quote:
secondary fuel box

Would I be correct to think you're talking about add-on fuel computer a big turbo requires?

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KZScott


Needs a life
high on speed
Posts: 7221
posted June 17, 2015 12:43 PM        
sounds like a stage 2 kit with extra injectors?
____________
01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos

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crean


Parking Attendant
00 zx12r turbo
Posts: 3
posted June 17, 2015 12:49 PM        
last time it was tuned it made 307hp at the wheel on pump gas and ran an 8.3 @ 168
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