Accelerator Module

[mavn]

The Power FRK corrects the fueling for the ammount of air flowing through the airbox, so if you have exhaust, filter etc fitted, the engine will be drawing more air for given RPM.
The other devices drop the IAT reading by about 20 degrees to fool the ECU into feeding the engine more fuel.
They work, but aren't very sophisticated.
The power FRK is more expensive at £239, but it because it senses RPM as well as air flow, it adjusts the fuel & ignition for any situation.
As I said previously, I will be doing back to back tests very shortly.

Hi Mototech,

Please explain to me that the Power FRK does something differently??? If I'm not mistaken, the Power FRK module is also placed between the temperature sensor. There is only 2 wires going to that device. So how can it senses the RPM??? How can it adjust the ignition??? So the Power FRK fools the same IAT. People have already investigated the Power FRK (see Dutch forum) and basically it is the same "non very sophisticated" devices, but at a very much higher price! You can already see the DYNO runs on the Dutch forum, but I wait for yours to see

VBR

 

[LBL]

done it

just ordered mine

 

[vertically challenged]

Ordered mine..

If the results are as good as the reports......

 

[GrinningGSer]

Yonkyo, you have started an avalanche of people ordering these things and I am also dragged along with an awaited delivery.

 

[Yonkyo]

just ordered mine

Enjoy

If the results are as good as the reports......

I don’t think you’ll be disappointed

Yonkyo, you have started an avalanche of people ordering these things and I am also dragged along with an awaited delivery.

And you as well eh!

Yes, I should be on commission for this (I’m not), but I’m just very impressed at the results, considering the low cost.

I was about to spend hundreds of dubloons on a similar gadget, so when I chanced upon this module I had to give it a try first.

Right then Mr MAVN, about this commission then.

 

[luckylucian]

Ordered mine today, probably at the back of the queue

 

[jc_bromley]

I'm in that queue as well, by the time I get to the front I'm expecting a fat bloke in a red suit to deliver it!!!!

 

[elmandarino]

There used to be a down side to all this in that too much fuel was pumped into the engine in certain circumstances and would wash the cylinder bores of its lubrication.

This sounds too good to be true. I am certainly not doubting you guys - it sounds great but what is this device doing that BMW doesn't want it to? Is it about emissions or is there any potential long term damage?

 

[ebbo]

Fitted the ‘Accelerator’ module last night and went for a test ride today.
The bikes a R1200RT with standard exhaust and Cat. Weather dry with temp’s between 2c and 7c.

Town running at and around 30 mph.
I have to say it’s so much better. Almost all the lumpiness has gone and it will run down to 1500rpm in 2nd and gently accelerate from there easily, know-way would it have done that before. I never felt compelled to feather the clutch or coast with the clutch in because of lumpiness as it’s so much smoother now. I can well imagine it could lead to less fuel being used because I was often riding the bike in a higher gear and lower rpm than I’d normally have used. It just seems to have made the whole bike sweeter to ride around town, and thats just what I wanted.

A roads and duel carriageway.
I did go for a run to Squires Café this afternoon, but I had my daughter on the back for ballast so can’t comment too much other than no problems and the bike seemed to pick up speed nicely from low revs two up and generally performed very well. In fact I changed up from 1st to 2nd then 2nd to 3rd at 2000 rpm and the bike did it smoothly two up and quite heavily loaded I’d say.

Overall, I’m a very happy bunny, roll on spring! (and a new pair of tyres!)

Accelerator website http://www.sol2.be/Accelerator/English/index.html#

 

[ts2]

There was a similar product for GSXRs. The GSXR one was meant to trick the bike into thinking it was in 5th gear where it allegedly had a different engine map. The story that time was that Suzuki had deliberately toned down the engine map in the first few gears to make it less harsh accelerating etc. I got sucked in and decided to build my own (again it was just a resistor, though this one had a transistor to allow it to act normally in neutral). Never did get around to testing it, so can't tell you if it worked, but it was amazingly similar to this product on the Suzuki forums: ie half the people were raving about how great it is and how its only a few pounds (again you could buy one ready made for £30). The other half saying that they were all just kidding themselves.


I'd like to see the dyno runs as I know that if I'd taken the time to buy and fit one I'd be seeing an effect, if only because I'd pay more attention to how the bike feels. I'd also wonder what the long term effect would be? Perhaps I'm just a worrier?

TobyS

 

[Yonkyo]

There was a similar product for GSXRs. The GSXR one was meant to trick the bike into thinking it was in 5th gear where it allegedly had a different engine map. The story that time was that Suzuki had deliberately toned down the engine map in the first few gears to make it less harsh accelerating etc. I got sucked in and decided to build my own (again it was just a resistor, though this one had a transistor to allow it to act normally in neutral). Never did get around to testing it, so can't tell you if it worked, but it was amazingly similar to this product on the Suzuki forums: ie half the people were raving about how great it is and how its only a few pounds (again you could buy one ready made for £30). The other half saying that they were all just kidding themselves.


I'd like to see the dyno runs as I know that if I'd taken the time to buy and fit one I'd be seeing an effect, if only because I'd pay more attention to how the bike feels. I'd also wonder what the long term effect would be? Perhaps I'm just a worrier?

TobyS

I think what you are referring to is the T.R.E. (Timing Retard Eliminator) which de-restricts some Suzuki and Kawasaki engines.

I believe the TRE works on an entirely different principal.

UPDATE:
I went out for another ride today, with a mate on his 07 1200GS (also with Remus headers and stock Can) to do a back to back comparison. The difference was immediate. His bikes engine felt hesitant, lumpy and surgy(?) in slow town traffic. I also needed first gear on his bike instead of second gear on mine.

Now after riding my bike, he wants me to order him a Module also

 

[webbel]

just ordered mine ...hope it works for me

 

[claw]

Ordered mine a couple of days ago....

 

[24c]

Dyno runs are on the web, try google

Most OEM BMW twins benefit from an enrichment to the AFR, essentially this "resistor" will achieve this...it's not rocket science...loads of folks sell them. For those that are interested there are BMW RT/GS dyno runs, before and after on the web with marginal changes in their peak hp with these devices fitted, but the significant changes are the AFR readings, as they all run slightly richer at lower revs. (IIRC 14:1 stock to 13:1 modded.)

 

[GrinningGSer]

All getting too technical for me now, AFR, had to google it
Conditions Results
Too Lean Poor engine power
Misfiring at cruise speeds
Burned valves
Burned pistons
Scored cylinders
Spark knock or ping
Slightly Lean High gas mileage
Low exhaust emissions
Reduced engine power
Slight tendency to knock or ping
Stoichiometric Best all-around performance
Slightly Rich Maximum engine power
Higher emissions
Higher fuel consumption
Lower tendency to knock or ping
Too Rich Poor fuel mileage
Misfiring
Increased air pollution
Oil contamination
Black exhaust

 

[chipsonfriday]

All getting too technical for me now, AFR, had to google it
Conditions Results
Too Lean Poor engine power
Misfiring at cruise speeds
Burned valves
Burned pistons
Scored cylinders
Spark knock or ping
Slightly Lean High gas mileage
Low exhaust emissions
Reduced engine power
Slight tendency to knock or ping
Stoichiometric Best all-around performance
Slightly Rich Maximum engine power
Higher emissions
Higher fuel consumption
Lower tendency to knock or ping
Too Rich Poor fuel mileage
Misfiring
Increased air pollution
Oil contamination
Black exhaust

Eh!

Do we pick any one or choose any three?

So AFR means...

 

[ebbo]

Most OEM BMW twins benefit from an enrichment to the AFR, essentially this "resistor" will achieve this...it's not rocket science...loads of folks sell them. For those that are interested there are BMW RT/GS dyno runs, before and after on the web with marginal changes in their peak hp with these devices fitted, but the significant changes are the AFR readings, as they all run slightly richer at lower revs. (IIRC 14:1 stock to 13:1 modded.)

Welcome 24c, would you like to point us to the dyno runs and sellers of these similar devices, just saves us all a load of guesswork

Cheers

 

[GrinningGSer]

So AFR means...

Air Fuel Ratio
here is one place to start

 

[DutchBryn]

Air Fuel Ratio.

 

[Zpider]

Read about it, bought it, mounted it, tested it. Verdict on my GSA -07:

The thing i missed from my old 1150GSA was the low end grunt that i could not feel in the 1200. I also really suffered from what i thought was a very high first gear on the 1200. At one point i almost regret trading up to the 1200. After trying this simple solution im at home with my 1200 for the first time. I know about the upgrade to EURO 3 environment regulations BMW do to bikes, eigher as new or on older bikes when serviced. This is a part of the ECU upgrade and cant be optioned out. Once in there, its there. This makes the bike very nervous and feels like there is nothing at the low-end rpm's. This is more or less cured with the accelerator module or back to as it was before the EURO 3. So to sum it up as i experience it:

Mouting time less than 5 minutes on a GSA
Runs a shitload smoother on low rpm's than before
I can upshift much sooner than before
I can cruise on higher gear/lower rpm at the same speed as before
And most important, it makes me happy again

Still couldnt throttlewheelie it in second gear, but this time due to the Karoo getting no grip on the continious wet surface we have in Sweden now
All in all, you can go for the Power commander or similar and get the ability to fine tune through the whole register and you may gain one or two ponies from that in some rpm's, but to get this improvement from a €29 piece of simple resistor on a cable makes me, as i said, happy.