What fuel controller? '13 yz450f
- Thread starter deeko2007
- Start date
What are your goals with the controller? Are you wanting to change your mapping for a different power curve or just control the amount of fuel the bike is getting?
The Dobeck is good (and priced reasonably) for controlling the amount of fuel easily, but it doesn't allow you to adjust the power of the bike. The Power commander with Autotune gives you a lot more options, but it also costs a lot more.
The Dobeck is good (and priced reasonably) for controlling the amount of fuel easily, but it doesn't allow you to adjust the power of the bike. The Power commander with Autotune gives you a lot more options, but it also costs a lot more.
Curious what your suggesting by PC allowing changing the "power of the bike" They do fuel curve very similarly to how DP does it, just cell by cell instead of 3 broader zones, but most create maps that result in almost the same results. On the YZ timing can be done in stock trim so no sense buying a piggyback controller to do that?
+1 for DP Gen 4. simple, set it and ride, no oil in the fuel and spot on running day to day.
I thought the PC could adjust mapping curve - similar to what the yamaha controller does. I could (must) be wrong! I run a Dobeck Gen 4 and a Vortex ignition on my bike.
R
Rush44
Well-known member
I like the Gen4+ from Dobeck. It does what it's supposed to do with little BS.
However, in the spirit of fairness, it's little BS is pretty much all gauge issues. I don't suffer from them like some other uses have in the past since my bike sits in a heated garage all winter, but they are yet to be fully moisture proof. Dobeck has been good about replacing them under warranty for people in the past.
Other than that the system is really great.
However, in the spirit of fairness, it's little BS is pretty much all gauge issues. I don't suffer from them like some other uses have in the past since my bike sits in a heated garage all winter, but they are yet to be fully moisture proof. Dobeck has been good about replacing them under warranty for people in the past.
Other than that the system is really great.
yeah, fuel map adjustment vs stock. You can do it but reality is the dobeck is much more like the GYTR tuner with a green yellow and red zones (similar to the OEM low med hi settings) Nice thing with the DP though is you get a gauge and can see the actual changes being made not just tuning by seat of the pants.
I should have added that I need to be educated a little bit too! I see a lot of people recommending them as things to add. I've never been around one.
Would you explain the oem thing to me? What would I gain from adding a fuel controller? Bike seemed to run great last year, sometimes restarting was a little tough, tho.
TIA
Would you explain the oem thing to me? What would I gain from adding a fuel controller? Bike seemed to run great last year, sometimes restarting was a little tough, tho.
TIA
Powercommander just added a new pretty cool feature. Being able to tune with your smart phone.
http://www.powercommander.com/powercommander/products/PowerCommanderV/powercommander_v.aspx
For simplicity, especially for someone who doesn't know tuning very well, Dobeck.http://www.dobeckperformance.com/dobeck-AFR-controller.asp
http://www.powercommander.com/powercommander/products/PowerCommanderV/powercommander_v.aspx
For simplicity, especially for someone who doesn't know tuning very well, Dobeck.http://www.dobeckperformance.com/dobeck-AFR-controller.asp
I’ll clear up a few things to educate deeko2007 and others here about the Dynojet line of products.
The OEM thing being referred to here is the manufacturer’s (Yamaha in this case) mapping deemed appropriate to run the bike in all conditions. On fuel injected vehicles, a slew of sensors are used to sense what is happening at snapshots of time to produce an output - either a fuel injection event or when to spark a plug. After examining the current throttle position, Manifold pressure, engine temp, etc., the ECU’s firmware operations combines all those factors and comes up with an amount of fuel to spray (and when to spray it) as well as when to time the ignition event. An ECU will also monitor transient inputs, amount of time operating in a certain condition, or quick throttle stabs and vary the fuel or ignition pulse accordingly.
Once this event has been sent to the ignition coil or injector, all piggyback fuel controllers can jump in-line and modify what the ECU has just sent. In the case of the Power Commander V from Dynojet, it can adjust the requested fuel delivery from -100% to +250% over or under the stock requested value AND also adjust the timing of the ignition event plus or minus 20* (hence – teal_210 is correct and it IS true that the PCV can alter the power delivery of the bike by having this capability). In the end, all piggyback’s are dependent on what the ECU has programmed in it.
The GYTR tool contains adjustment zones nearly identical to the Power Commander V layout, and gives the end user some manipulation of the stock ECU settings – acting like an upstream reflash device and is not like a piggyback controller. It utilizes 9 zones of adjustment broken into Low/Mid/High TP setting, coupled with a Low/Mid/High RPM zone in a matrix/grid of cells. A rider could be at low RPM and high TP being in one section of the mapping requiring adjustment to that one cell, or at mid TP high RPM for another. This grid of cells mirroring how the PCV operates makes tuning a breeze inside the GYTR and overlays perfectly with Dynojet’s gear for easy customer use. Specific to the 2013 YZ450F, these TP zones range from 0-1/8 throttle, 1/8-3/8 throttle, and 3/8-6/8 throttle , while the RPM ranges are segmented at 4000, 6500, and 9000RPM. 1 point of fuel adjustment increment in the GYTR tuner represents a 3% change from the factory calibration providing a range of plus or minus 21% total. Ignition degree adjustments range from +2* to minus 9*.
For our own testing verification peace of mind years ago, adjusting fuel/timing to zones on the GYTR tool and performing dynoruns on a YZ450F was followed up by inserting the same adjustments to the bike controlled with a PCV with spot-on identical results relative to one another. Pretty neat!
Things you can gain from adding a fuel controller are numerous. Your bike ran great last year, but as you noticed, the Yamaha’s are truly one of the toughest to start sometimes–the WR’s being the most finicky. To aid in starting, the PCV can adjust fuel and timing in that very tiny, precise spot as the bike is coming to life. Or, another background feature known as “start-up fuel” can tweak the fuel for a second to help the engine get spinning as it can suffer from a heat-soaked-injecting-too-much-fuel case, or a super-cold-intake-air-not-injecting-enough-fuel case. Other benefits are increased throttle response, better fuel range for the day, or eliminating fuel in the oil. A super cool feature since the PCV does have full fuel and ignition control is the ability to Extend the Rev Limiter of the bike!!! Numerous optional accessories exist from Dynojet including Autotune to monitor your AFR all day and keep it spot on, a Quickshifter to provide full throttle, clutchless shifting, a Map switch to save two different maps (i.e.: one for trees and one for trail), and a display gauge to show you all engine data including RPM, %TP, AFR, Duty Cycle, etc.
If you want to start with an entry level fuel controller without all the bells and whistles or accessories, Dynojet offers a tiered product structure starting with our $249 PCFC under part number FC22032 which controls only fuel and does not allow add on accessories. This neat unit accepts the same mapping tables as the PCV, but also exposes three in-field adjustment trim pots for the Low, Mid, and High range allowing you to add or subtract 10% of the fuel load at the twist of a knob. Next would be the Fuel-Only PCV, followed lastly by the Fuel+Ignition PCV under number 22-045 for the utmost most control over your bike.
For your convenience, our website at http://www.powercommander.com/powercommander/default.aspx has pre-made maps available for many various intake and exhaust setups already tuned for your YZ450F!
And yes - our new C3 Mobile App allows you to tune right from your Smartphone!
Thanks guys!
~T.J.
The OEM thing being referred to here is the manufacturer’s (Yamaha in this case) mapping deemed appropriate to run the bike in all conditions. On fuel injected vehicles, a slew of sensors are used to sense what is happening at snapshots of time to produce an output - either a fuel injection event or when to spark a plug. After examining the current throttle position, Manifold pressure, engine temp, etc., the ECU’s firmware operations combines all those factors and comes up with an amount of fuel to spray (and when to spray it) as well as when to time the ignition event. An ECU will also monitor transient inputs, amount of time operating in a certain condition, or quick throttle stabs and vary the fuel or ignition pulse accordingly.
Once this event has been sent to the ignition coil or injector, all piggyback fuel controllers can jump in-line and modify what the ECU has just sent. In the case of the Power Commander V from Dynojet, it can adjust the requested fuel delivery from -100% to +250% over or under the stock requested value AND also adjust the timing of the ignition event plus or minus 20* (hence – teal_210 is correct and it IS true that the PCV can alter the power delivery of the bike by having this capability). In the end, all piggyback’s are dependent on what the ECU has programmed in it.
The GYTR tool contains adjustment zones nearly identical to the Power Commander V layout, and gives the end user some manipulation of the stock ECU settings – acting like an upstream reflash device and is not like a piggyback controller. It utilizes 9 zones of adjustment broken into Low/Mid/High TP setting, coupled with a Low/Mid/High RPM zone in a matrix/grid of cells. A rider could be at low RPM and high TP being in one section of the mapping requiring adjustment to that one cell, or at mid TP high RPM for another. This grid of cells mirroring how the PCV operates makes tuning a breeze inside the GYTR and overlays perfectly with Dynojet’s gear for easy customer use. Specific to the 2013 YZ450F, these TP zones range from 0-1/8 throttle, 1/8-3/8 throttle, and 3/8-6/8 throttle , while the RPM ranges are segmented at 4000, 6500, and 9000RPM. 1 point of fuel adjustment increment in the GYTR tuner represents a 3% change from the factory calibration providing a range of plus or minus 21% total. Ignition degree adjustments range from +2* to minus 9*.
For our own testing verification peace of mind years ago, adjusting fuel/timing to zones on the GYTR tool and performing dynoruns on a YZ450F was followed up by inserting the same adjustments to the bike controlled with a PCV with spot-on identical results relative to one another. Pretty neat!
Things you can gain from adding a fuel controller are numerous. Your bike ran great last year, but as you noticed, the Yamaha’s are truly one of the toughest to start sometimes–the WR’s being the most finicky. To aid in starting, the PCV can adjust fuel and timing in that very tiny, precise spot as the bike is coming to life. Or, another background feature known as “start-up fuel” can tweak the fuel for a second to help the engine get spinning as it can suffer from a heat-soaked-injecting-too-much-fuel case, or a super-cold-intake-air-not-injecting-enough-fuel case. Other benefits are increased throttle response, better fuel range for the day, or eliminating fuel in the oil. A super cool feature since the PCV does have full fuel and ignition control is the ability to Extend the Rev Limiter of the bike!!! Numerous optional accessories exist from Dynojet including Autotune to monitor your AFR all day and keep it spot on, a Quickshifter to provide full throttle, clutchless shifting, a Map switch to save two different maps (i.e.: one for trees and one for trail), and a display gauge to show you all engine data including RPM, %TP, AFR, Duty Cycle, etc.
If you want to start with an entry level fuel controller without all the bells and whistles or accessories, Dynojet offers a tiered product structure starting with our $249 PCFC under part number FC22032 which controls only fuel and does not allow add on accessories. This neat unit accepts the same mapping tables as the PCV, but also exposes three in-field adjustment trim pots for the Low, Mid, and High range allowing you to add or subtract 10% of the fuel load at the twist of a knob. Next would be the Fuel-Only PCV, followed lastly by the Fuel+Ignition PCV under number 22-045 for the utmost most control over your bike.
For your convenience, our website at http://www.powercommander.com/powercommander/default.aspx has pre-made maps available for many various intake and exhaust setups already tuned for your YZ450F!
And yes - our new C3 Mobile App allows you to tune right from your Smartphone!
Thanks guys!
~T.J.
Last edited:
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