Powercommander now fitted......
- Thread starter Paul Young
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why post it over there first ? trying to keep it a secret ? 
The distribution looks good to me. I epirically first thought it takes off from low and puts more on mid and high end, but it doesn't cut low grunt. Enhanced midrange comes beneficial indeed, must think about it too because i'm having difficulties with stock Motronic 2.2 mapping with afermarket exhaust.
Any experiences with Techlusion, anyone?
Cheers, Margus
Any experiences with Techlusion, anyone?
Cheers, Margus
Hi Margus,
My 1150 was running rich in the midrange & this was what caused the dip in the torque curve. The positive side of this was the feeling when the powerband kicked in from 5000rpm.
A Techlusion can only add more fuel, which is fine if the bike's running lean (& most GS's do....) but mine needed the fuelling cutting back so it needed either:
1. A different chip/fuelling map (The Superchip can be remapped, apparently)
or
2. A Powercommander, which can add/remove fuel throughout the revs
HTH,
My 1150 was running rich in the midrange & this was what caused the dip in the torque curve. The positive side of this was the feeling when the powerband kicked in from 5000rpm.
A Techlusion can only add more fuel, which is fine if the bike's running lean (& most GS's do....) but mine needed the fuelling cutting back so it needed either:
1. A different chip/fuelling map (The Superchip can be remapped, apparently)
or
2. A Powercommander, which can add/remove fuel throughout the revs
HTH,
How much does 1.15 HP cost?
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Paul,
It's still got the dip at 5k though. Is it less noticable now?
It's still got the dip at 5k though. Is it less noticable now?
Rob Farmer said:
Not ridden the bike yet, Rob, I'm picking it up on Saturday. The main differences are that the hole in the mid-range has been all-but filled & the power curve doesn't drop off anything like as rapidly, when it reaches its peak. The improvements in both torque & power throughout the entire rev range have got to be better......
IanF said:
No idea..... it wasn't the point. I'd rather not have much of an increase in power as the insurance company won't like that....
I do like the idea of more drive/grunt, & hope that this year at the TT will be even more fun than ever. 
I've already told my insurers about the Y piece, Superchip & other modifications, so I'm not expecting anything to change. It's interesting to note, though, that the 1200GS was tested at similar figs by San Jose BMW, some time ago. A Powercommander is an awful lot cheaper than the cost of changing bikes.
YMMV,
Attachments
Got a bit more info today.......
Quote from Martin @ Dynojet UK:
"Two more graphs for you, both with air/fuel traces. The first is wide open throttle, as standard the bike runs predominantly lean, with a rich spot around 5000 RPM, with the power commander I have been able to bring the fuel curve to around 13:1 across the rev range, not only improving power and torque, but also getting rid of the glitch at 5000 RPM.
The second graph is a part throttle run, around 40% throttle opening, this is where the bike will spend a lot of time. As standard the bike runs around 14.7:1 air/fuel ratio, richening this up to around 13.2:1 gives the bike a noticeable power increase, over 10% in some places and should make the bike much smoother and nicer to ride.
If you were not aware the BMW power commanders are slightly more advanced than the standard power commander, the main difference is it comes with it's own wideband O2 sensor that replaces the BMW OEM O2 sensor. This makes the BMW power commander a "self mapping" power commander and gives you the means to adjust the target air/fuel ratio the power commander is set too.
For example I have it currently set at 13.2:1 this should give awesome performance, however may reduce MPG slightly, using the software provided you can alter this target air/fuel ratio anywhere between 13:1 to 14.7:1, so you could lean it out for a long trip and get better MPG, alternatively you can find a happy balance between MPG and performance."
Here's the first of the two graphs.....
Quote from Martin @ Dynojet UK:
"Two more graphs for you, both with air/fuel traces. The first is wide open throttle, as standard the bike runs predominantly lean, with a rich spot around 5000 RPM, with the power commander I have been able to bring the fuel curve to around 13:1 across the rev range, not only improving power and torque, but also getting rid of the glitch at 5000 RPM.
The second graph is a part throttle run, around 40% throttle opening, this is where the bike will spend a lot of time. As standard the bike runs around 14.7:1 air/fuel ratio, richening this up to around 13.2:1 gives the bike a noticeable power increase, over 10% in some places and should make the bike much smoother and nicer to ride.
If you were not aware the BMW power commanders are slightly more advanced than the standard power commander, the main difference is it comes with it's own wideband O2 sensor that replaces the BMW OEM O2 sensor. This makes the BMW power commander a "self mapping" power commander and gives you the means to adjust the target air/fuel ratio the power commander is set too.
For example I have it currently set at 13.2:1 this should give awesome performance, however may reduce MPG slightly, using the software provided you can alter this target air/fuel ratio anywhere between 13:1 to 14.7:1, so you could lean it out for a long trip and get better MPG, alternatively you can find a happy balance between MPG and performance."
Here's the first of the two graphs.....
Attachments
WOW!!!!! I took a ride out to Knott End, near Blackpool, this evening & I've been inspred to write a few words. 
Flippin brilliant....... The difference it's made to the acceleration was superb. 2nd gear can't be held for more than a second or two before you hit the rev limiter - it revs so quickly.
I've even got pretty good acceleration in 6th (O/D) from below 40mph right through the revs. I couldn't check the max speed as roads were too busy & speed limited, but I don't expect it to be substantially different.
No surging, seriously quick acceleration, silky cruising & the peace of mind of knowing that the fuelling is, pretty much, spot on are now within my grasp. Just need to check for backfires, now.
Roll on June & this years trip to the TT......
PS: BT010's are a revelation as well. Got my new ones good & hot & they were glued to the road. I am a seriously happy bunny.
Flippin brilliant....... The difference it's made to the acceleration was superb. 2nd gear can't be held for more than a second or two before you hit the rev limiter - it revs so quickly.
I've even got pretty good acceleration in 6th (O/D) from below 40mph right through the revs. I couldn't check the max speed as roads were too busy & speed limited, but I don't expect it to be substantially different.
No surging, seriously quick acceleration, silky cruising & the peace of mind of knowing that the fuelling is, pretty much, spot on are now within my grasp. Just need to check for backfires, now.
Roll on June & this years trip to the TT......
PS: BT010's are a revelation as well. Got my new ones good & hot & they were glued to the road. I am a seriously happy bunny.
Hi Paul, joining you at the TT this year, can i attach a bungee strap so i can keep up please? 
Cheers
Brian.
Cheers
Brian.
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TUNED IN said:Good to see they actually did some tuning and not just run the standard DJ setups for the 1150
Martin, the guy who did the work, spends a lot of time working at BSB rounds at this time of year, so I wouldn't expect he'd just do that...
He knows his stuff.....When I picked the GS up, Ian Lougher was there 'cos Paul Bird runs his BSB team from the same place & has Dynojet fettle his bikes. If they're good enough for him, they're definitely good enough for me.
Just a quick note to add to Paul's experiences.
If you are considering a performance increase for your GS, then go the powercommander route. The latest Powercommander designed specifically for BMWs incorporates its own wideband O2 sensor (which replaces your standard lambda sensor) which self maps the bike to a predetermined air fuel ratio (typically 13.8 :1 or slightly lower for more power).
Forget the techlusions or powerchips available - they will only give you a 'best guess' fuel curve. A Wideband PCIII properly set-up on the dyno is the way to go here.
Ferg
If you are considering a performance increase for your GS, then go the powercommander route. The latest Powercommander designed specifically for BMWs incorporates its own wideband O2 sensor (which replaces your standard lambda sensor) which self maps the bike to a predetermined air fuel ratio (typically 13.8 :1 or slightly lower for more power).
Forget the techlusions or powerchips available - they will only give you a 'best guess' fuel curve. A Wideband PCIII properly set-up on the dyno is the way to go here.
Ferg
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