You wont foul a plug running a 12.5 at wot. Thats not rich, its safe. And for what it's worth my bike made more power on the dyno with intake, exhaust, cam each time I tweaked the tune richer.
( I'm using a Ficon 2 with preset maps and lean/rich settings) I'm maxed out for as rich as I can be on the tuner running a 13.0 at wot. I gained 1 full hp going from a 14.0afr to a 13.0 afr on the dyno and if I could have run richer I think it might make a tad more. Just tune it for where it makes the most power, if you dont have a dyno make a 4th gear pull at 12.5 and one at 13.0 and see what afr pulls harder and goes fastest.

 

I have a similar setup and just starting to play with afr+. I tried 13 at wot and it felt slower, didn't seem to want to rev out as well in 3rd and 4th. back to 12.5 and it was pulling pretty well. Hope to find more time to mess with it but when I have tried different than their recommendations, it hasn't felt as crisp on the butt dyno.

 

I'd love to see someone's dyno sheets with AFRs on it to really understand at what AFR this motor makes the most power.

What are you using for your cruise & idle AFRs? 13.5 or 14?

 

for me, i run around 13 across the board (chimera intake, brocks exhasut, DCR cam)

as a reminder, except for the wot (red) setting, all values set at the gauge are incremental percent changes where 12 is 0% change. if you have the ver2 gauge, it's more obvious as you can reference the percent increments on the gauge.

 

Are you on stock gearing? Can you hit limiter in 4th with this setup?

Have you tried running @ 12.5 WOT?

 

with stock gearing, no. i'm currently -1/+2 for better acceleration around city streets and the kart tracks. with this gearing, i can hit the limiter in 4th.

for me, seemed to run better at 13 using the butt dyno. to be accurate, really need time on the dyno to test various settings.

 

Running Chimera Intake, MNNTHBX Dual Underbody Exhaust & DCR Cam with stock gearing. Bike is running excellent with the AFR+ dialed in to these settings. One of these days will get the bike dyno tested to see actual numbers.

G=12.2
Y=12.3
R=12.6
G/B=12.2
Y/B=12
R/B=14

 

Good to know. The DCR cam will probably be my next mod.

What top speed are you hitting with the DCR cam and what top speed were you getting without?

After stage 1 my acceleration is night and day, but there is no significant difference in top speed.

 

Butt dynoed it at 12.5 and 13 and had an extra mph at 12.5 so I'll leave it at that.

So basically I am targeting 12.5 at WOT and 13.5 everywhere else.

 

AFR Values & Characteristics in Four Stroke Engines
6.0 AFR - Rich Burn Limit (engine fully warm)
9.0 AFR - Black Smoke / Low Power
11.5 AFR - Best Rich Torque at Wide Open Throttle
12.2 AFR - Safe Best Power at Wide Open Throttle
13.3 AFR - Lean Best Torque
14.6 AFR - Stoichiometric AFR (Stoich)
15.5 AFR - Lean Cruise
16.5 AFR - Usual Best Economy
18.0 AFR - Carbureted Lean Burn Limit
22.0+ AFR - EEC / EFI Lean Burn Limit




IDLE / LIGHT CRUISE: 13.5 AFR - target with GREEN mode
When you start your vehicle we refer to this as being in IDLE condition. When you shift into gear and drive at a low mph we refer to this as being a LIGHT CRUISE. With 14.7 being the industry standard stoich AFR value, we typically like to see these conditions run slightly richer. We target this condition with our GREEN zone and suggest to tune by leaving the vehicle at an idle, but hold the throttle slightly open to a constant rpm. Adjusting the fuel will affect the sound of the engine. We are looking to adjust the fuel to get the smoothest engine operation.


CRUISING: 13.5 to 14 AFR - target with YELLOW mode
Most of the time you are driving your vehicle you will be within our CRUISE zone. This condition is the most wide open for customer preference based on two factors. If you prefer better GAS MILEAGE then run a leaner mixture.
14 AFR (on-road bikes)
Most stock to slightly modified engines will run just fine at an AFR of 15:1 and yield better MPG. If you prefer better PERFORMANCE then we suggest to run an AFR of 14:1 or even richer to around 13.5:1.
13.5 AFR (off-road vehicles)
Most stock to slightly modified engines will run just fine at an AFR of 14.5:1 and yield better MPG. If you prefer better PERFORMANCE then we suggest to run an AFR of 13.5:1 or even richer to around 13:1.


FULL THROTTLE / HIGH RPMS: 12.5 AFR - target with RED mode
Driving full out within a gear will bring you into our FULL THROTTLE zone. This condition is where the peak horsepower value is obtained. The Acceleration zone below may throw in a quick adjustment of fuel, but usually only engages for a couple of seconds. When maintaining a full throttle condition you should enter our red zone and will want to run a richer AFR to get the best performance. Best performance for most vehicles is in the 12.5:1 to 13:1 AFR range. Going too rich will have the opposite affect and decrease your performance.


ACCELERATION: 12 AFR - target with GREEN/BLUE mode
Getting up to cruising speed or getting ready to pass someone, you usually are looking for the performance to get up and go. We refer to any fast turn of the throttle as our ACCELERATION zone. Depending on the RATE of the throttle change will determine how much our controller will affect the fueling. Zone only engages for a couple of seconds.
Slow rate: may not even change anything.
Fast rate: results in the max change set by the mode.
Moderate rate: calculates out linear representation between zero and the max set value by the mode.

 

Without the DCR Cam I was hitting 64 mph in slight tuck position. With the Cam I hit 61 mph in 3rd before hit the rev limiter then got up to 68 mph sitting up. Would like to do some more runs but have not had the time. I sure I will hit 70+ in a full tuck. Bike pulls way harder after 6k with the Cam. You should definitely make that your next modification.
Dobeck performance is installing a DCR Cam on their bike so I'm interested to see the performance numbers and their AFR settings.

 

Yep, would love to see baseline/stage 1/DCR Cam dyno chart from Dobeck. Strange that I don't see that published on their site.

 

Thanks for posting that great info I heart ricers.