04/09/2026
2025 kawasaki Zx10 (gen 6)
This I really enjoyed - probably spent too much time on it
The catalytic converter has been removed with a beautiful exhaust canister and link pipe as well as a performance air filter and the stick air fuel sensor was disconnected.
I know that your first instinct will want to see the max power at max rpm - thats not that impressive, it took me less than 20 minutes to tune 100% throttle.
Getting up to 100% throttle is much much quicker now.
I have attached dyno graphs run at of 5%, 10%, 20%, 40%, 60%, 80% and 100% throttle positions
(Not to hurt the bike too much i cut the dyno abit before the stock limiter - I DID NOT RAISE THE LIMITER! if I did figures would be higher)
Look through them - red is hp, green is torque and blue is air fuel ratio... the dotted line is before the full dyno tune.
First off - the stock fueling (dotted blue) is ridiculously lean, boardering on dangerous to the engine. But manufacturers have to do this to give us bikes like these. The solid blue line is current fueling - is aimed for 13.0 as it gets pretty warm on the track
Part of the tuning is removing restrictions in the ecu, one of the big restrictions here are the electronic throttle valves that open up alot slower than anyone would want.
The owner does alot of track riding and wants ALL of the power that he paid for. Arguably I could have left in some of the restrictions just before 8000 to give a smoother torque curve and stop that dip, we probably will fine tune abit.
Have a look at the lower throttle graphs...
Dont focus on hp or torque numbers - all bikes are different, all dynos are different and even the time of day changes numbers. Look at the % gain. Im sure that with with all of this power, alot of time will be spent at low throttle.
40% Throttle is about the power of a 750
60% Throttle is the power of most 1000s
The bike is so much h smoother and more rideable, its just soo damn fast!
Ps - I have cleaned up the dyno graphs abit, removing a whole lot of unnecessary information, if youd like to see the unaltered graphs, send me a message over whatsapp
