There doesn't seem to be much of an improvement with the accelerator on the 20% and 40% runs
Hi I just want to 'quick' react on the dyno performance comparison test with the Power FRK module.
First I want react on the way they write how the Power FRK module works and how misleading the info is...
<<The Power FRK Module works as follows:
It detects and interprets the engine RPMs by the alternator’s sine wave pulsing in the power supply to the IAT sensor
It interprets the rush of air as you open the throttle using the IAT sensor’s variant signal. This is how we determine load.
Using the above two variants the Power FRK Module will modify the IAT signal to call up on-board mapping in the optimal performance range based on the demand of the rush of air into the air box and the corresponding RPM.
THE POWER FRK detects the engine revolutions and the Power FRK comes into operation only when the engine revolutions increase. The Power FRK Module senses the RPM and Pressure changes in the air-box and automatically modifies the signal of the IAT sensor on acceleration only for maximum power.
As engine revolutions decrease and you are running at constant speed (Steady State) the Power FRK Module stops its IAT signal modulation. Your ECU will return to normal programming and will also allow the ECU to go into “Closed Loop Operation” mode when riding Steady State Mode.
Powerful Performance with better MPG/KPL as the combustion efficiency is enhanced by excellent flame front propagation from optimal Injection and Ignition mapping.>>
1) First have a look at their installation instructions (
http://www.powerfrkusa.net/setup/bmw-installation-guides/r-1200-gs/). You will see that it is mounted between the motronic module and the temperature sensor. It has also 2 pins in the connector. Just like the ACCELERATOR module. I asked it several times from Mototech to explain how different technology their module is towards mine. Up to now no reaction! So how can the Power FRK module detect the engine RPM, the IAT sensors, MODIFY the IAT signals,etc...??? Their explanation above is just bull... The fact is that it is more or less the same way constructed as the Accelerator module. Check out various forums and they will confirm that it is just a resistor value between the 2 leads. At least I'm honnest in what the module is build off and already wrote this in this forum what is inside.
2) Having explained their technique, I want to make some remarks on the DYNO run. There are already DYNO tests available comparing the Power FRK with other same types of modules. (I can forward the link if needed). These are done by customers who bought such a Power FRK module and not done by their representatives. These results were very close (falling in the same range). I don't understand why the dyno tests were not done using Power versus RPM's, like they are usually done. It is also not so difficult to get better results. Just use different values of resistors. I could have send out a much stronger one to Mototech where the results of the accelerator should have been beter. What these tests doesn't indicate is that if you make it too strong, the richer the fuel mixture become and you will run into difficulties during the riding of your bike (= field test no dyno test), like engine shut-off during (de-)acceleration, hugh increase of fuel consumption,... You can find again this on forums. The filosofy of the Power FRK is that if a customer is not satisfied with the one that has been send, they change it with another one that has another resistance value. (just a thought that came to my mind when I saw the test results: why are there about 50 dyno runs taken? Normally you put the 2 modules in the bike and test it. Was there so many trials needed to find a version that performed better?)
3) The basic thought of the module that I created was to let the engine run smoother in low revs, nicer throttle response, ... I believe many users reports the same advantages... And this for 1/10 the price Power FRK is asking!!! So I don't think more expanation is needed. I just regret that there is no explanation that I'm wrong that their product is also just a resistor and not a very sophiscated technology. Yes it is nicer boxed, with CD...!
VBR[/QUOTE]
I too have been lurking and reading this thread and in my opinion, you have made some good points. Seems that your product is fairly simple and marketed and priced as such, while the FRK seems to be "smoke and mirrors" at a considerably higher price.
I am sure I am opening myself up to critics as well, but it is just my opinion.
for me the bottom line is the Accelerator does exactly what Mavn claims and at £29 is excellent value.
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