Power Commander vs. Wunderlich

[Pat Pickens]

Hi,

I could not find any old threads about comparing fuel management modules so here it goes.

I see some of us are installing Power Commarders, others the Wunderlich module. What do you think the pros and cons are of each? Is there another choice besides these two?

BTW - I have a '07 with a Remus can and K&N filter. It's already running too lean for my liking. If I buy the Remus header I am afraid my GS will run even leaner.

Thanks,

Pat

[Schtum]

Originally Posted by Pat Pickens

Hi,
I see some of us are installing Power Commarders, others the Wunderlich module. What do you think the pros and cons are of each? Is there another choice besides these two?

My understanding is that the PCIII will allow you to both add and subtract fuel from the map whereas the Wunderlich module will only add fuel. A Power Commander will therefore enable you to have a custom map, which matches your bike's fuelling requirements, made up on the dyno.

BTW - I have a '07 with a Remus can and K&N filter. It's already running too lean for my liking. If I buy the Remus header I am afraid my GS will run even leaner.

I think you're quite correct it will run leaner. I had a full Remus system which I removed from my '04 bike and fitted to my '07 model. It was noticeable that the later bike ran a fair bit leaner and that was with the stock air-filter. In passing, if I were you, I'd remove the K&N. Any performance gains are questionable and the filtration suspect at best.

I acquired a PCIII for my '07 GS but swapped the bike for an '09 before I got round to fitting it. I've fitted the Ti Revolution can to my '09 bike but I won't be fitting the headers until I can have the bike mapped on the dyno with the PCIII fitted. '08 and '09 bikes are mapped even leaner as stock compared to the earlier ones.

[bloke]

pat what makes you think its running to lean? im probably going to loose myself a sale here but i have a full remus, a blue filter and the bigger snorkle (a must for more ponies) and it still doesnt run lean enough for me to worry about (been on the dyno) it too much

[Pat Pickens]

Bloke, I'm sure there are several indicators of lean running. The big one for me was loud popping coming off the gas. Also, some throttle responses seemed to be sluggish as if the engine was needing more gas than it was given. You know, seat of the pants stuff not dyno data. So the International Motorcycle show was in town. Damn, there was Wunderlich so the wallet is in immediate trouble. I bought a performance module (for the 1200GS). The popping is gone. Now I need to dial it in. The engine seems to be running a little rich now. Lost 2 to 4 MPG on 1/2 tank and the exhaust has more of a gas smell to it. It will be fun to play with the module but it has already met my expectations.