CDN Duke
Member
Dyno booked for Feb 15th!
Custom intake runners available now!
CDN Duke
Member
I encountered a delay when pulling bike out of storage. Water pump cover gasket had failed, had a puddle on the floor...
Got that sorted and finally made it to the dyno yesterday.
We did a baseline run with the bike as it was. The "before" was Competition Werkes shorty exhaust, TYGA Performance header, open lid airbox with inverted K&N filter, and Chad Wells tune. My local tuner was impressed with the base map. That yielded 42.0/42.6 corrected.
For the "after", we swapped out the airbox with the modified intake runner and the injector. Ended up with 47.3/48.0 corrected!
There is a drop in max torque and power down low, not sure if I can tune that out later... We ran out of time basically at the end.
It'll be a few weeks before I can ride the bike as we've still got a ton of snow and ice here... Can't wait.
Tom
New Member
Congrats on the numbers!!! Your Duke probably feels like a monster now! I still haven't had a chance to get a tune on mine, I've just been running Chad's timing map with autotune fuel maps.
I just ordered my intake runner. Is anyone using the gray area intake with the WB2 + PCV set up? I’m wondering how the WB2 will handle the larger injector? Or should I just stay closed lid with the stock injector?
Does anyone know what is the duty cycle of the stock injector with the closed lid?
I assume most of the tuning was done on a first generation bike with a PCV and the O2 optimizer. Because the PCV made food the 2017 bikes lack the O2 optimizer the WB2 seems to be the best setup to control/spoof the closed loop fueling, but I am curious if anyone has any thoughts on how that setup interacts with the gray area runner and open vs closed lid scenarios.
Lastly, what rev limit is best for the PCV with this setup?
Thanks!
Does anyone know what is the duty cycle of the stock injector with the closed lid?
I assume most of the tuning was done on a first generation bike with a PCV and the O2 optimizer. Because the PCV made food the 2017 bikes lack the O2 optimizer the WB2 seems to be the best setup to control/spoof the closed loop fueling, but I am curious if anyone has any thoughts on how that setup interacts with the gray area runner and open vs closed lid scenarios.
Lastly, what rev limit is best for the PCV with this setup?
Thanks!
Set RPM limit to 10800 at a minimum, we suggest 11250.
Forum member Tom, I believe is running your exact setup with good results.
Duty cycle of the stock injector with lid and 11250 RPM limit is 97-100% depending on a few factors.
Forum member Tom, I believe is running your exact setup with good results.
Duty cycle of the stock injector with lid and 11250 RPM limit is 97-100% depending on a few factors.
Not to my knowledge yet. Its extremely high thats why there is an option for a bigger one, it is 100% necessary if you open even a fragment of the lid.
Nope no upgrade needed. Runs good and reliable.
Tom
New Member
Hello ia02,
I'm using the larger injector with auto tune. Just default all the columns to -10 and the auto tune will correct to your selected AFR within an hour riding. The only thing that took a little patience was the idle. All of the 0% throttle colums should be set to at least +10 to compensate for the added dwell time for on/off throttle, but the 3 idle cells had to be set to something like -18 | -20 | -18 . I can take a snap shot of the table when I get home. I know there is still power to be gained with a dyno tune, but i've been too busy with work to schedule anything.
Also, if you are not running one of Chad's maps, I would reach out to him and see if there's anything he can do to provide you with a solid timing map. Otherwise, the bike will feel sluggish with just auto-tune tables.
Send and email, and I can provide you with my fuel maps for 93 octane on both stock exhaust/open lid/larger injector, and full exhaust/open lid/ larger injector. These would be a good starting point for your auto-tune to adjust for your elevation and air temps, but I have to zero out all timing cells out of respect for Chad.
I'm using the larger injector with auto tune. Just default all the columns to -10 and the auto tune will correct to your selected AFR within an hour riding. The only thing that took a little patience was the idle. All of the 0% throttle colums should be set to at least +10 to compensate for the added dwell time for on/off throttle, but the 3 idle cells had to be set to something like -18 | -20 | -18 . I can take a snap shot of the table when I get home. I know there is still power to be gained with a dyno tune, but i've been too busy with work to schedule anything.
Also, if you are not running one of Chad's maps, I would reach out to him and see if there's anything he can do to provide you with a solid timing map. Otherwise, the bike will feel sluggish with just auto-tune tables.
Send and email, and I can provide you with my fuel maps for 93 octane on both stock exhaust/open lid/larger injector, and full exhaust/open lid/ larger injector. These would be a good starting point for your auto-tune to adjust for your elevation and air temps, but I have to zero out all timing cells out of respect for Chad.
I have quite a few I can send you. Plus Rapidbike is an autotune device so it would be able to sort it out otherwise.
Back in stock for a while!
Fangfactor
Member
I modified my snorkel to the same dimensions as the race model and am running an open lid with PCV and WB2 autotune
Im noticing a slight miss around 8500-9000rpm at full throttle.
Would this be caused by the standard injector. There is more room in the PCV tables for me to add more fuel or is it that the standard injector cant physically deliver the higher amounts?. Is that the RPM range thats effected by the standard injector or do you think this miss an electrical issue?
Cheers
It could be a lot of things but with that combination you will certainly be way short on fuel especially when it gets to the higher RPMs. So that would be a good start.
CDN Duke
Member
Different day, different dyno. Local motorcycle shop 613 Motorsports had a 10 Year Anniversary Party complete with onsite dyno. 3 pulls for $60 with proceeds to local charity. Highest and lowest HP competition. They had a 400cc and lower class so entered the Duke. When I arrived, highest HP was 2017 RC390 with Rapidbike Evo and Yoshimura exhaust -> 42.xx HP. I was closer to end of day and ended up with 45.42HP for highest in category. Lowest 400cc bike was vintage Honda CB400 at 28hp.
I had scaled back rev limit to 10500 after tuning was complete. I think I will put back to 11000 as it seems to get to 10500 very quickly with no signs of power dropping off...
I had scaled back rev limit to 10500 after tuning was complete. I think I will put back to 11000 as it seems to get to 10500 very quickly with no signs of power dropping off...