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It's been a long time since my last post in here but things changed again for me and I can an be active member again.
This time I went to the dyno with a ZX10R 08 with pistons-ported head-cams-full exhaust etc. Very strong bike. The owner said he wanted the most out of his bike for street racing but also somewhat safe ( don't melt it on the dyno safe :badteeth
With that said I recommened that the bike should be tuned "each cylinder individually" and not by the average,he agreed so here it is. I did several pulls without touching anything on the bike,just recorded the AFR first "normally" with the O2 sensor in the midpipe then each cylinder separately.
I'm going to post the AFRatios only as the onwer didn't want me to post any numbers anywhere. :2bitchslap:
Here are all the cylinders together,as you can see there is large variation that in somepoints goes up to 1.3-1.4 AFR. You will also notice that cylinders 1-4 and 2-3 are somewhat similar but not close,so tuning them in pairs (like with a KIT ECU) is somewhat better but still not perfect.
I've also posted the average AFR for refference,the bike was not completely off because it was tuned on the street,the dip at the last rpms before the limiter is because ram air is working in real conditions providing more air but not on the dyno.
This is also some sort of proof the Kawasaki has the best ram air in the market,never seen anything like this on other bikes.
This time I went to the dyno with a ZX10R 08 with pistons-ported head-cams-full exhaust etc. Very strong bike. The owner said he wanted the most out of his bike for street racing but also somewhat safe ( don't melt it on the dyno safe :badteeth
With that said I recommened that the bike should be tuned "each cylinder individually" and not by the average,he agreed so here it is. I did several pulls without touching anything on the bike,just recorded the AFR first "normally" with the O2 sensor in the midpipe then each cylinder separately.
I'm going to post the AFRatios only as the onwer didn't want me to post any numbers anywhere. :2bitchslap:
Here are all the cylinders together,as you can see there is large variation that in somepoints goes up to 1.3-1.4 AFR. You will also notice that cylinders 1-4 and 2-3 are somewhat similar but not close,so tuning them in pairs (like with a KIT ECU) is somewhat better but still not perfect.
I've also posted the average AFR for refference,the bike was not completely off because it was tuned on the street,the dip at the last rpms before the limiter is because ram air is working in real conditions providing more air but not on the dyno.
This is also some sort of proof the Kawasaki has the best ram air in the market,never seen anything like this on other bikes.
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