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All 650's Power Levels!

miweber929

2014
CBR650F
650 Alumnus
Staff
Feb 13, 2015
Woodbury, MN
Riding Since
1975
I have no experience with industrial dynos like the ones produced by the company your friend works for. I'm sure they take more into consideration and provide delineated numbers.
For clarification, Power Test owns like 8 or 9 other Dyno companies and don’t just do industrial ones. Theres a link in their page showing all the different ones; my friends CBR600RR lived at the factory for a while because they were working on motorcycle chassis setups and he had something like 100 “dyno miles” on it last winter, lol!! He also has an old XS650 Yamaha that he pulled out of a junk pile they used as a test mule. They also do a lot with race car motors.

I think Superflow is their chassis inertia division.
 
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Patmac

2021
CB650R ABS
Mar 6, 2022
Riding Since
1990
Oh man this one kid is on a CB650R with a Black Widow exhaust and just a DNA air filter stating he has dyno sheets to prove 100HP.

Another guy stated that he went from a Two Brothers exhaust to an Akra on his CBR650F and was pushing 130HP with a K&N air filter.

It’s crazy in Australia that they think the bike can push that much after just changing the snorkels for US ones and removing the restriction on our bikes to create so much HP 😂
I just had to reply... I have 4 Honda's and every group has morons like that... specially on the 125's (I have a 125 I changed the air filter and now it does 90Mph +) Very annoying not based on any proof and or facts but challenge them and you start a 3 day debate back and forth with these clowns I call them group idiots something like the modern day digital village idiot ... ;-)
 

Dennis88

2021
CB650R ABS
May 21, 2022
Riding Since
1995
Hey guys so I’ve been seeing a lot of kids in Australia thinking their bike can push 120HP and whatnot. I was wondering what you guys are running exhaust and air filter or any other performance mods and what legitimate numbers the bike is pushing HP wise. Dyno sheets are welcome as proof haha.

I have the 2019 CBR650R with just a casual Mussari Exhaust and the stock air filter and the bike pushing on a dyno 86HP.

Feel free to drop your specs and stats on any model of the 650.
Super late reply, but I have just recently purchased a 2021 cbr650r for reason is because a friend has one and I was impressed with the power to the rear wheel it made. He managed to make 97hp to the RW which is impressive, mods is minor with only using a full Austin exhaust system and the obvious trumpet replacements. In NZ most the CBR650r make 88.1hp reflashed with 0 mods and stock ECU and that's where I get confused cause Honda claim 95hp stock. SBK and if you have not heard of them I highly suggest watch them reflash a cbr650r with stock ECU and make 98hp. At the end of the day it comes down to the tuner them self, I've seen so many sheets with different readings all the time and people get confused. SBK helped my friend a lot and the tuner him self.
 

nathan650

CB650R ABS
Dec 31, 2024
Riding Since
2006
I hollowed out my intake funnels,DNA filter,Akro exhaust,custom Dyno tune and netted 86rwhp And 45nm. It started with 49 rwhp and 33 nm so it’s a solid gain and so much more fun to ride now..
I know Dynos will all vary a little and so many things can vary the result but anyone claiming much over 90rwhp are getting taken for a ride by the person doing the work or they are just full of sh.it..
ive seen and heard it all before when the LS engines first came to Australia in our commodores..
hi sir what dyno machine was that? the whp figure looks kinda low for those mods
 

Motojack

2021
CBR650R
May 26, 2019
Reading 96hp on the dyno, full ackra with baffle removed. AFR cleaned up, pre flash she was running lean especially up to 3.5k and i have the PAIR removed and blanked 🤔

Would have like to see what it was before i installed the exhaust to check the delta, but im not made of money.
 

m12lrpv

2025
CBR650R E-Clutch
Sep 17, 2025
Australia
Riding Since
1984
The big issue here isn't the bikes capabilities. It's the tuners scamming their customers.

For me I've just recently bought a 2025 CBR650R (currently restricted) for the missus but I have a '23 MT09SP.
One thing I have is all the woolich gear and went DIY on the MT. Once you peel back that curtain you start to realise riders are pouring $1000's down the drain on scam tunes. When the wife is ready I'll derestrict the CBR.

The 3 main scams are "it's running lean from the factory", the power gain they get from a minimum effort TPS fuel map done in one session on the dyno, and finally the magnitude of the final HP number.

The o2 sensor feedback loops on these work pretty well and self tune the fuel maps of the bike at all RPM's (another common scam is that they don't). The bike is typically leaner but it's more correct to say less rich. The o2 sensor feedback loop compensates automatically for different octane fuels, different weather, different altitude, etc. It's basically it's own inbuilt power commander but not as dumb as a power commander because it does both TPS and IAP maps and can react to load and environmental variations unlike the power commander.

When the tuner puts the bike on the dyno they first disable the o2 sensor feedback loop and write that to the bike. First dyno run is on the base maps and not the self tuned maps. The base maps are typically rich. Look at the AFR on the base runs on peoples dyno sheets and you'll typically see that they're rich. That's because the factories don't want the bike to run lean if the o2 sensor feedback loop fails. There's a benefit to the tuner in doing the base run this way. They get to call it stock which it technically is but the base run isn't the tune that the bike was ridden in with. The bike as "ridden into the shop" had a full "in memory" map of TPS and IAP long and short term fuel trims.

Tuners typically won't base run a self tuned bike because they know that there is a chance that they cannot beat it and that would be quite embarrassing.

Next one is how long they have the bike for and what they do with it while they have it. Typically the tuner only does the TPS/ETV maps (CBR is just TPS) and they tend to tune that map in one session with minimal data and smooth over the gaps. The dyno's they have, have limited capability to emulate road conditions in order to tune the IAP map so the IAP map is typically left stock or it's adjusted poorly with the dregs of the data they got from the TPS cell mapping runs. IAP is important as it's the low down on off throttle smoothness, cruising speeds as well as engine braking and elevation based changes.

The final issue is of course tuners that play with the dyno settings to fake gains.

Real gains require ignition tuning and some genuine tuners have tried and still haven't been able to find anything meaningful. Any real gains require head work and increases in compression ratios to achieve anything worth braggin about.

When the wifes CBR gets derestricted i'm actually going to leave the o2 sensor feedback loop active. I have the zeitronix gear from the MT tune to do the fuel maps properly but it's just not worth the effort for the gains. I mentioned this to a friend and they chose to do the same with their '23CB and it's going great.

The best thing is that once you have the gear woolich charge $100 for a license per bike and it's easy to just copy and paste from unrestricted version and write it to the bike taking ~20min. Of course the throttle intakes need swapping but people can DIY that with some replacements from aliexpress.
 

Motojack

2021
CBR650R
May 26, 2019
My intention to get the tune was more the fuel mapping with the full exhaust system, Power gains were not my priority. I can feel the difference already in the rev range highlighted in the graph and it definatly rolls on smother. Wether it was worth the money it depends. But i wouldent say i was scammed. To do it myself id spend all the money on that gear and i have to know what im doing which takes time and expirience.

Id love to mess around with that tuning gear though, is the kit bike specific?
 
Last edited:

Pete Croney

2024
CBR650R E-Clutch
Feb 18, 2025
Billericay, Essex
Riding Since
2024
The big issue here isn't the bikes capabilities. It's the tuners scamming their customers.

For me I've just recently bought a 2025 CBR650R (currently restricted) for the missus but I have a '23 MT09SP.
One thing I have is all the woolich gear and went DIY on the MT. Once you peel back that curtain you start to realise riders are pouring $1000's down the drain on scam tunes. When the wife is ready I'll derestrict the CBR.

The 3 main scams are "it's running lean from the factory", the power gain they get from a minimum effort TPS fuel map done in one session on the dyno, and finally the magnitude of the final HP number.

The o2 sensor feedback loops on these work pretty well and self tune the fuel maps of the bike at all RPM's (another common scam is that they don't). The bike is typically leaner but it's more correct to say less rich. The o2 sensor feedback loop compensates automatically for different octane fuels, different weather, different altitude, etc. It's basically it's own inbuilt power commander but not as dumb as a power commander because it does both TPS and IAP maps and can react to load and environmental variations unlike the power commander.

When the tuner puts the bike on the dyno they first disable the o2 sensor feedback loop and write that to the bike. First dyno run is on the base maps and not the self tuned maps. The base maps are typically rich. Look at the AFR on the base runs on peoples dyno sheets and you'll typically see that they're rich. That's because the factories don't want the bike to run lean if the o2 sensor feedback loop fails. There's a benefit to the tuner in doing the base run this way. They get to call it stock which it technically is but the base run isn't the tune that the bike was ridden in with. The bike as "ridden into the shop" had a full "in memory" map of TPS and IAP long and short term fuel trims.

Tuners typically won't base run a self tuned bike because they know that there is a chance that they cannot beat it and that would be quite embarrassing.

Next one is how long they have the bike for and what they do with it while they have it. Typically the tuner only does the TPS/ETV maps (CBR is just TPS) and they tend to tune that map in one session with minimal data and smooth over the gaps. The dyno's they have, have limited capability to emulate road conditions in order to tune the IAP map so the IAP map is typically left stock or it's adjusted poorly with the dregs of the data they got from the TPS cell mapping runs. IAP is important as it's the low down on off throttle smoothness, cruising speeds as well as engine braking and elevation based changes.

The final issue is of course tuners that play with the dyno settings to fake gains.

Real gains require ignition tuning and some genuine tuners have tried and still haven't been able to find anything meaningful. Any real gains require head work and increases in compression ratios to achieve anything worth braggin about.

When the wifes CBR gets derestricted i'm actually going to leave the o2 sensor feedback loop active. I have the zeitronix gear from the MT tune to do the fuel maps properly but it's just not worth the effort for the gains. I mentioned this to a friend and they chose to do the same with their '23CB and it's going great.

The best thing is that once you have the gear woolich charge $100 for a license per bike and it's easy to just copy and paste from unrestricted version and write it to the bike taking ~20min. Of course the throttle intakes need swapping but people can DIY that with some replacements from aliexpress.
Almost all modern ECUs (cars and bikes) have to run closed loop to meet EU regs on emissions. They will have limits on ignition advance but fuelling is fully variable up to injector limits (they are normally +50% over what will ever be needed).
Remapping non turbo engines rarely gives much more power, unless the engine is seriously detuned for mechanical reliability. Use up any margin on these engines at your peril!!
 
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