Good, more numbers,, now lets get the "butt" Dyno impression, ya know does if feel faster, like when you get new sneakers on your feet and you can run faster?
Dyno and tune using CO adjustment with Leo Vince
Just ran the FZ on the dyno for the first time with the Leo Vince exhaust.
Here's the setup: 2006 Yamaha FZ6 with Leo Vince exhaust with cat eliminator, db killers out.
Previous run totally stock 89.10hp
Today's runs:
Run 1 (stock tune) - 93.20hp
Run 2 (+4 C1 and C2) - 93.82hp
Run 3 (+9 C1 and C2) - 94.77hp
Run 4 (+14 C1 and C2) - 95.11hp
Run 5 (+19 C1 and C2) - 95.60hp
Run 6 (+24 C1 and C2) - 95.79hp
Run 7 (+29 C1 and C2) - 95.68
so there it is. Leo Vince with stock tune will give you 4hp but there is extra power to be had by using your CO adjustment.
Overall, I ended up with a 7hp gain with only exhaust added. I am still running a stock airbox and filter. The bike has 4200 miles.
Here's the setup: 2006 Yamaha FZ6 with Leo Vince exhaust with cat eliminator, db killers out.
Previous run totally stock 89.10hp
Today's runs:
Run 1 (stock tune) - 93.20hp
Run 2 (+4 C1 and C2) - 93.82hp
Run 3 (+9 C1 and C2) - 94.77hp
Run 4 (+14 C1 and C2) - 95.11hp
Run 5 (+19 C1 and C2) - 95.60hp
Run 6 (+24 C1 and C2) - 95.79hp
Run 7 (+29 C1 and C2) - 95.68
so there it is. Leo Vince with stock tune will give you 4hp but there is extra power to be had by using your CO adjustment.
Overall, I ended up with a 7hp gain with only exhaust added. I am still running a stock airbox and filter. The bike has 4200 miles.
1 - 20 of 25 Posts
But on the dyno runs, how was the fuel ratios? Did it stay flat even with those adjustments?
Khyren
Khyren
yup very flat. yamaha really knows what they are doing with fuel injection. it adjusts to different factors and keeps everything in line very well. i need to scan these sheets i guess.But on the dyno runs, how was the fuel ratios? Did it stay flat even with those adjustments?
Khyren
Put over a hundred miles on the bike last night and the butt dyno says it wants to wheelie more... but I prefer both wheels on the ground thank you!Good, more numbers,, now lets get the "butt" Dyno impression, ya know does if feel faster, like when you get new sneakers on your feet and you can run faster?
:fiddy
Good, I wanted to know if it was noticeable or not, Think it will effect fuel mileage? not that it is a big issue. In addition, would an air box mod increase in hp as well?
After all this time, at last!!!!
Thanks for manifesting that the CO adjustments really do effect the bike's running condition as opposed to just being an emission at idle adjustment.
Now, if we can only measure the emissions and compare data as you change the values...:eatpop
Thanks for manifesting that the CO adjustments really do effect the bike's running condition as opposed to just being an emission at idle adjustment.
Now, if we can only measure the emissions and compare data as you change the values...:eatpop
well, if he scans the sheets that have the fuel charts on them and compare the last to the stock settings, we can see if there is a huge fuel dump or not...
Khyren
Khyren
Cool findings
I was always curious if those settings had any effect on power output. Neat to see that they appear to. Maybe I should crank mine up a bit since I have the Laser quad.
I was always curious if those settings had any effect on power output. Neat to see that they appear to. Maybe I should crank mine up a bit since I have the Laser quad.
yeah yeah, scan and post runs!
Good work brudda
Good work brudda
Jim, you wont hurt anything if you bump up the CO by 10-15 points. you can see how many i did to get the gains i saw. if you still have a cat, likely 15 points would be as high as you would need. maybe less. it really is hard to say without a dyno.
thanks Robbo and khyren. i will be back in the shop tomorrow and will try to remember to bring home my printouts to scan.
b.t.w. i am getting about 180 miles to a tank with this setup. filled today and squeezed in just under four gallons. not too shabby.
edit: that 180 mile tank was 87 octane. i am now running 91 to see if there is any difference.
thanks Robbo and khyren. i will be back in the shop tomorrow and will try to remember to bring home my printouts to scan.
b.t.w. i am getting about 180 miles to a tank with this setup. filled today and squeezed in just under four gallons. not too shabby.
edit: that 180 mile tank was 87 octane. i am now running 91 to see if there is any difference.
Ok. I have to be the one to ask. Do we need any fancy equipment to do the CO adjustment or can it simply be done in the diagnostic mode or what?
you wouldnt have to use any special equipment to adjust the CO but in order to tune for power you would need a dyno with a sniffer.Ok. I have to be the one to ask. Do we need any fancy equipment to do the CO adjustment or can it simply be done in the diagnostic mode or what?
So, if the CO adjustments were lowered, would that increase fuel mileage?
how do u do the adjustment?
well, yes to a point but that would be causing your engine to run leaner than stock. the results would likely be at most 5mpg increased but the increased heat would likely negate that too. not to mention decreased life of the engine and oil.So, if the CO adjustments were lowered, would that increase fuel mileage?
my fuel mileage has not suffered at all, and if any change, has improved slightly.
I would imagine that the range of adjustment is between two acceptable limits set by the factory, I would be surprised if you went either way to the limits of adjustment that it would harm anything, and still be within factory specs. Sound reasonable?well, yes to a point but that would be causing your engine to run leaner than stock. the results would likely be at most 5mpg increased but the increased heat would likely negate that too. not to mention decreased life of the engine and oil.
my fuel mileage has not suffered at all, and if any change, has improved slightly.
+1how do u do the adjustment?
going off of the minute a/f changes each run, i would agreeI would imagine that the range of adjustment is between two acceptable limits set by the factory, I would be surprised if you went either way to the limits of adjustment that it would harm anything, and still be within factory specs. Sound reasonable?
CO adjustment
What is the CO adjustment and how do you set it?
What is the CO adjustment and how do you set it?
1 - 20 of 25 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Sport Bikes
A forum community dedicated to all sport bike owners and enthusiasts. Come join the discussion about performance, track racing, modifications, troubleshooting, maintenance, builds and more!
Full Forum Listing
Explore Our Forums
Recommended Communities
