• Has your topic been discussed? Check this quick video for search tips. You answer/info might already be waiting!

CB650R Dyno Tune with PC5

stevelululu

stevelululu

2019
CB650R ABS
May 7, 2019
Toronto
***For all you homies with nice aftermarket mods, pondering whether to get a custom map done on a dyno***

Tuned @ Champion Cycle in Toronto for CAD300 + 13% tax.

Current set up:
  • 2019 CB650R
  • K&N Air Filter (HA-6519)
  • Akrapovic Full System w/o baffle (S-H6R11-AFT)
  • PAIR valve blanked (Smartmoto)
  • O2 sensor blanked (Smartmoto)
    • I was told by the tuner this is necessary because apparently with it in place, ECU will just revert the PC5 changes for "low rpm" fuelling back to stock
    • Not sure how valid this is, but no check engine light, and the bike hasn't gone up in flames yet
Pros:
  • Much improved throttle response/fuelling, especially in 1st/2nd gear - jerkiness is completely eliminated
    • Disclaimer: PAIR valve w/o tune significantly improves throttle response already; the tune just takes it to "next level"
  • No more exhaust "popping"
  • ~6% increase in power, 10% increase in torque
    • ~5 whp, ~4 torques
    • Probably never feel this difference on the street; the bike wasn't transformed into a Streetfighter V4...
Cons:
  • Extra $$$
    • PAIR valve alone is probably sufficient to fix most of the low gear throttle issues
  • PC5 + tune is probably gonna run you at least 600+ USD
Dyno graph for reference:

Blue: Current set up with stock map
Red: Current set up with custom map

187329031_850468532493428_1861446456493951055_n.jpg

Feel free to comment, criticize, call me out, whatever. Not an expert at how a tuned bike should feel/look like.

Just my 2 cents to hopefully help y'all out before splurging the hard earned pandemic cash :)
 
Last edited:
miweber929

miweber929

2014
CBR650F
650 Alumnus
Staff
Feb 13, 2015
Woodbury, MN
Riding Since
1975
No reason to call you out, you are seeing what is typical and expected.

Question: is the before graph line with the stock pipe, the Akra and no PCV or Akra with the PCV using a default map? Maybe I missed it in your description. Makes a better apples to apples compare.
 
stevelululu

stevelululu

2019
CB650R ABS
May 7, 2019
Toronto
miweber929 said:
No reason to call you out, you are seeing what is typical and expected.

Question: is the before graph line with the stock pipe, the Akra and no PCV or Akra with the PCV using a default map? Maybe I missed it in your description. Makes a better apples to apples compare.
Click to expand...
Edited the post!

Only variable between the two lines is the custom map, all other parameters are the same.
 
Cbat

Cbat

2018
CBR650F ABS
May 13, 2018
stevelululu said:
  • O2 sensor blanked (Smartmoto)
    • I was told by the tuner this is necessary because apparently with it in place, ECU will just revert the PC5 changes for "low rpm" fuelling back to stock
    • Not sure how valid this is, but no check engine light, and the bike hasn't gone up in flames yet
Click to expand...
Interested in this comment. I'm currently running my stock O2 sensor parallel to Bosch lambda sensor for PC5+Autotune. Can't remember where I got that advice, may have been PC. I'm wondering if the two sensors are fighting each other.
 
Last edited:
stevelululu

stevelululu

2019
CB650R ABS
May 7, 2019
Toronto
Cbat said:
Interested in this comment. I'm currently running my stock O2 sensor parallel to Bosch lambda sensor for PC5+Autotune. Can't remember where I got that advice, may have been PC. I'm wondering if the two sensors are fighting each other.
Click to expand...
smartmoto-electronics.com

O2 (Oxygen) Sensor Eliminator kit OSE-214

The O2 Sensor Eliminator Kit by SmartMoto replaces the factory oxygen sensor in a motorcycle's exhaust. The kit allows the bike's ECU to bypass the limitations of the oxygen sensor system and use the installed air-fuel map. This results in improved throttle response, smoother power delivery, and mo
smartmoto-electronics.com smartmoto-electronics.com

This is the exact kit I used.
 
Cbat

Cbat

2018
CBR650F ABS
May 13, 2018
stevelululu said:
smartmoto-electronics.com

O2 (Oxygen) Sensor Eliminator kit OSE-214

The O2 Sensor Eliminator Kit by SmartMoto replaces the factory oxygen sensor in a motorcycle's exhaust. The kit allows the bike's ECU to bypass the limitations of the oxygen sensor system and use the installed air-fuel map. This results in improved throttle response, smoother power delivery, and mo
smartmoto-electronics.com smartmoto-electronics.com

This is the exact kit I used.
Click to expand...
I just ordered. No more than a resistor in a nice package + bung plug. I'm okay with that.
 
miweber929

miweber929

2014
CBR650F
650 Alumnus
Staff
Feb 13, 2015
Woodbury, MN
Riding Since
1975
stevelululu said:
Edited the post!

Only variable between the two lines is the custom map, all other parameters are the same.
Click to expand...
Great!!! So you had the PCV already installed and were using the Akra map that DJ had on their site? That's a pretty big change with a custom map and shows how much a good shop doing a tune does make a difference and how generic the DJ ones are.

I would not have expected quite that much change from just a map, but would have expected that if you hd no PCV and they installed it and did a custom tune. Noce to see that!!!
 
R

RheDegz

2018
CB650F ABS
Feb 13, 2021
Riding Since
2017
stevelululu said:
***For all you homies with nice aftermarket mods, pondering whether to get a custom map done on a dyno***

Tuned @ Champion Cycle in Toronto for CAD300 + 13% tax.

Current set up:
  • 2019 CB650R
  • K&N Air Filter (HA-6519)
  • Akrapovic Full System w/o baffle (S-H6R11-AFT)
  • PAIR valve blanked (Smartmoto)
  • O2 sensor blanked (Smartmoto)
    • I was told by the tuner this is necessary because apparently with it in place, ECU will just revert the PC5 changes for "low rpm" fuelling back to stock
    • Not sure how valid this is, but no check engine light, and the bike hasn't gone up in flames yet
Pros:
  • Much improved throttle response/fuelling, especially in 1st/2nd gear - jerkiness is completely eliminated
    • Disclaimer: PAIR valve w/o tune significantly improves throttle response already; the tune just takes it to "next level"
  • No more exhaust "popping"
  • ~6% increase in power, 10% increase in torque
    • ~5 whp, ~4 torques
    • Probably never feel this difference on the street; the bike wasn't transformed into a Streetfighter V4...
Cons:
  • Extra $$$
    • PAIR valve alone is probably sufficient to fix most of the low gear throttle issues
  • PC5 + tune is probably gonna run you at least 600+ USD
Dyno graph for reference:

Blue: Current set up with stock map
Red: Current set up with custom map

View attachment 10385

Feel free to comment, criticize, call me out, whatever. Not an expert at how a tuned bike should feel/look like.

Just my 2 cents to hopefully help y'all out before splurging the hard earned pandemic cash :)
Click to expand...
Hey was looking to get my 2018 cb650f so e at champion in the new year where did you get your pair valve kit and your o2 delete? Thanks in advance
 
6

67ratrag

2019
CB650R ABS
Oct 15, 2021
Riding Since
1973
Last edited:
You must log in or register to reply here.
Top Bottom