Hi following my little trip up the m6 120 miles to junc33 dyno centre (owned by andy previous owner of quill exhausts) this morn for a custom map. the bike DOHC has only done 1000 miles and only fitted with full exhaust with baffles and quick action throttle.
Bike on dyno.
as you can see ive put baffles in the race system as it was way too loud however its still loud but not offensive like it was.
Dyno graph BHP before in RED with stock fueling after in BLUE with map.
Torque Graph.
same again before with stock map fueling and after.
All the above figures are at the wheel,and both cylinders was mapped seperate, and than both tables compared and set up from a 0 map file, when each cylinder was mapped there was very liitle difference, however one thing thats not been mentioned on this forum, there are limitations in the stock ecu regarding how the stock bike is set up for passing noise regs its not just the valve if the dyno man your using knows his stuff he should point this out when mapping the throttle positions at 20% throttle at 5k rpm the power drops off like its hit a limiter than picks its self up again(i saw the graph and i watched as it did it, and probably on the rd you may not even notice it) and than at 60% throttle at 8k rpm and 80% throttle at 8k this is too get by the noise regs as the DOHC engine is far noiser than the previous years, 100% throttle is fine power seems to flatten out around 8k, and so what bmw have done to the stock ecu is to retard the ignition at the above stages to get pass noise regs and by doing this it loses torque! im going to see if im able to remove this by fitting a ignition module from dyno jet, if there available and it will up the torque.
Tbh i did'nt know what to expect i thought it would have been more(it sounds like its got more!) probably because ive got another toy with over 170bhp @ wheel and 106bhp dont seem alot but the bike rides different now its very crisp and super-smooth, so is the gain worthy of the outlay the exhaust cost!!!! however it sounds nice, and having a look around what 2010 bikes are making 105@ wheel is about right.
Cost having one mapping done will cost you £150, having both cylinders mapped seperate will cost you £180, how long did it take the bike was put on the dyno at 10.30 and it was taken off at 4pm so i deffo got my monies worth.
Andy is a really nice guy he will make you coffee or tea all day and you can watch him do everything.
I have no connections with his business but id like to give him a free plug as ive used him many times and always been very happy.
Dave
Bike on dyno.
as you can see ive put baffles in the race system as it was way too loud however its still loud but not offensive like it was.
Dyno graph BHP before in RED with stock fueling after in BLUE with map.
Torque Graph.
same again before with stock map fueling and after.
All the above figures are at the wheel,and both cylinders was mapped seperate, and than both tables compared and set up from a 0 map file, when each cylinder was mapped there was very liitle difference, however one thing thats not been mentioned on this forum, there are limitations in the stock ecu regarding how the stock bike is set up for passing noise regs its not just the valve if the dyno man your using knows his stuff he should point this out when mapping the throttle positions at 20% throttle at 5k rpm the power drops off like its hit a limiter than picks its self up again(i saw the graph and i watched as it did it, and probably on the rd you may not even notice it) and than at 60% throttle at 8k rpm and 80% throttle at 8k this is too get by the noise regs as the DOHC engine is far noiser than the previous years, 100% throttle is fine power seems to flatten out around 8k, and so what bmw have done to the stock ecu is to retard the ignition at the above stages to get pass noise regs and by doing this it loses torque! im going to see if im able to remove this by fitting a ignition module from dyno jet, if there available and it will up the torque.
Tbh i did'nt know what to expect i thought it would have been more(it sounds like its got more!) probably because ive got another toy with over 170bhp @ wheel and 106bhp dont seem alot but the bike rides different now its very crisp and super-smooth, so is the gain worthy of the outlay the exhaust cost!!!! however it sounds nice, and having a look around what 2010 bikes are making 105@ wheel is about right.
Cost having one mapping done will cost you £150, having both cylinders mapped seperate will cost you £180, how long did it take the bike was put on the dyno at 10.30 and it was taken off at 4pm so i deffo got my monies worth.
Andy is a really nice guy he will make you coffee or tea all day and you can watch him do everything.
I have no connections with his business but id like to give him a free plug as ive used him many times and always been very happy.
Dave
and my torque graph is much cleaner than theres so again im chuffed with that and tbh i think my bike needs to do a few more miles, its only done 1k so really still tight, ive never owned a 12gs before but i noted when on the dyno with the cold blowers on the bike still got hot and we had to stop and let it cool down as it robbed it of power a one stage being air cooled. 
, i did ask to see a graph to there claim as they suggested they have/could get alot more hp and torque versus the pc5 but that could be all pub talk i await to see!!
