Power Commander question

Chum · 08-04-2008, 2:48 PM

I'm not sure if this has been covered directly before, but here it is.

Which is better for the RC51 SP2, PC3r with serial hook-up or PC3 USB. I hear the PC3r has more managent options. Is this true?

skwyd · 08-04-2008, 4:40 PM

from what i have read they offer the same exact features. I love the USB connectivity as I can change it very quicly on my laptop.

rokitt51 · 08-04-2008, 5:16 PM

I think that the UBS offers the fuel pump accel. Not sure if the R does? I think that the USB is better because of all of the module hook ups.

Chum · 08-05-2008, 12:39 AM

Great, thanks for your help guys.

b.miller123 · 08-06-2008, 4:54 AM

For what it's worth, I bought an R1 from a friend a while back, and it had a PCIII with the serial connection. I could never get it to connect to my laptop, even after talking with dynojet and trying every possible thing. And I am usually pretty good with any computer related stuff. I got so frustrated that I just wound up selling the stupid thing.

When the time (aka money) comes and I get a PC for the RC-51, I will definitely get the USB model

-Z- · 08-06-2008, 6:11 AM

The PC3r (now discontinued) allows you to adjust ignition as well as fuel.

The PC3usb is simple as hell to connect thanks to USB, but also it allows you to adjust fuel in 250rpm increments compared to the PC3r's 500rpm increments. Oh, and it can accept the Accelerator Pump download.

Loaded · 08-06-2008, 6:18 AM

Hey, A bit off to the side of your conversation but I just bought a '01 f4i with a power commander on it, not sure what modle. I don't really know a thing about it! What can I do with it? Is it mainly for racing? and how cool of a add on is it really???

-Z- · 08-07-2008, 3:53 AM

If you don't know what model it is, take a look at it. It will say what model it is right on the faceplate.

Loaded · 08-07-2008, 4:26 AM

yeah.... I haven't had a chance too mess around with it yet... I do know it hooks up via USB

-Z- · 08-07-2008, 4:58 AM

Dude, if it hooks up via USB then it's a PC3usb...done deal.

Also, if you mean you got a power commander with the bike but don't know if it's the one for the bike, then take a look at the model number on it, and do a google search for it to see what model it goes for....or go to Dynojet Research Inc.- Power Commander, Automotive Dynamometers, Motorcycle Dynamometers, ATV Dynamometers, Jetkits, and Wideband Commander and search for the power commander for your bike and see what the model number is.

Loaded · 08-07-2008, 6:46 AM

Ok I'm going to sound real ignorant here for a minute..... so what exactly is a power commander??? What does it do??? I just bought my bike yesterday, it was already on there so I'm needing to learn a little on it! It's all new to me

GlennCauley · 10-14-2009, 2:43 PM

A Power Commander is an electronic fuel-management module that connects with the bike's ECU to alter the fuel mapping going to the throttle bodies. The ECU has a stock "fuel mapping" that it uses to regulate the throttle bodies at any particular throttle opening or RPM, but sometimes the stock fuel mapping does not do a good job. Then if you alter your bike (exhaust, air filter, fuel, etc.) the stock fuel mapping may REALLY not work well. The PC can be programmed to make a custom fuel mapping for your individual bike.

< Does that sum it up, folks? >

SubSailor · 10-14-2009, 3:46 PM

The main reason for the Power Commander is the ability to alter the air/fuel ratio beyond the OEM settings.
The OEM settings are determined using stock components (airbox, exhaust, etc) in conjunction with EPA emission regulations.
As with cars, the air/fuel ratio is configured towards the lean side.
Change out the exhaust or any other mods to increase airflow throughput and you lean it out even farther, leading to rideability or performance issues.
The Power Commander unit inter-connects itself between the engine and ECU, to modify the injector timing to allow optimum performance air/fuel ratios of around 13.2:1 across the rev range.
The PCIIIr added the function of feeding the ignition timing signal trough the unit to modify ignition timing as well.
The PCIIIUSB samples the engine twice as much as the PCIIIr for more accurate calculations. And the USB I/F makes it real easy to connect a laptop to.
Plus it is a modular system where you can add other components.
Otherwise, the PCIIIr is a perfectly capable unit.

You'll need to take your bike to a shop that has a Dyno-Jet setup and have them put the bike on the dyno and calculate in upload a map for your Power Commander unit.
Some may download previously created maps off the Internet, but the ideal method is to generate a map for your specific bike setup.
The local shop in my area will charge full rate for the initial mapping, but offers a much less rate to re-map.
Shops in your area may do likewise.

BurtonF166 · 10-14-2009, 4:00 PM

A pc3r serial will easily connect to any PC laptop with a 15P to 9P converter unit. Works great and is cheap for anyone who is looking at a used one vs a new USB

Quote:

Some may download previously created maps off the Internet, but the ideal method is to generate a map for your specific bike setup.

^^Definately ideal; works great though too with the pre-made maps by dynojet.

gsxrfxr · 10-14-2009, 8:44 PM

Quote:

Originally Posted by BurtonF166

A pc3r serial will easily connect to any PC laptop with a 15P to 9P converter unit. Works great and is cheap for anyone who is looking at a used one vs a new USB

^^Definately ideal; works great though too with the pre-made maps by dynojet.

thats what i do because they are both the same besides conectivity.
pc3r are cheaper and usb's are more money..

gsxrfxr · 10-14-2009, 8:44 PM

Quote:

Originally Posted by SubSailor

The main reason for the Power Commander is the ability to alter the air/fuel ratio beyond the OEM settings.
The OEM settings are determined using stock components (airbox, exhaust, etc) in conjunction with EPA emission regulations.
As with cars, the air/fuel ratio is configured towards the lean side.
Change out the exhaust or any other mods to increase airflow throughput and you lean it out even farther, leading to rideability or performance issues.
The Power Commander unit inter-connects itself between the engine and ECU, to modify the injector timing to allow optimum performance air/fuel ratios of around 13.2:1 across the rev range.
The PCIIIr added the function of feeding the ignition timing signal trough the unit to modify ignition timing as well.
The PCIIIUSB samples the engine twice as much as the PCIIIr for more accurate calculations. And the USB I/F makes it real easy to connect a laptop to.
Plus it is a modular system where you can add other components.
Otherwise, the PCIIIr is a perfectly capable unit.

You'll need to take your bike to a shop that has a Dyno-Jet setup and have them put the bike on the dyno and calculate in upload a map for your Power Commander unit.
Some may download previously created maps off the Internet, but the ideal method is to generate a map for your specific bike setup.
The local shop in my area will charge full rate for the initial mapping, but offers a much less rate to re-map.
Shops in your area may do likewise.