Saw this in another forum reference Hayabusa going fast...my apologies as it is a long read....informative but long...this is referring to a run between an S1000RR and a Busa.
dont let out my man, happens quite often with that bmw, there strong 2nd thru 5th but as i saw the margin he was pulling when u hit 5th he wasnt pulling anywhere near as hard as when u were in 4th, it may seem discouraging having him come around you at 160 mph but trust me the busas tq and aerodynamics has the ability to turn the tables in 6th gear, im not sure if your ecu is flashed and you have extended revs but 500 over and your +2 gearing you have is good for about 198mph. beemers struggle in the 185mph+ range... your afr seems to be pretty good..you should trying going a tad richer to help efficiency at higher speed with the change in ram air or even make 5th and 6th gear richer than the other gears to aid with that, ram air at top of 3rd is far different and has different needs than top of 5th and especially 6th. might wanna pull a degree of timing in 6th also anywhere above 9krpms, maybe 12.8 to 13.0 should be your target.. if you cant see through that windscreen id change it to a clear double bubble or zero gravity light smoked at the darkest so you can get as low as possible and out of the wind and still see. hopefully you have a full exhaust, and high flow filter (bmc race, dna, sprint). full exhaust on a gen 2 is 47 lbs so if you just have slip ons your in need of some weight loss.. also not sure of your weight vs the bmw riders weight but again his rate of acceleration when u hit 5th wasnt anything you couldnt come back from..invest in a quickshifter, bazzaz standalone is a very good unit and allows gear by gear kill times and doesent require hooking in with a piggyback fuel tuner. a quickshifter wouldve kept him off your back alot longer as hes got a factory quickshifter propably set anywhere from 50ms kills to 200ms, your shifts are probably 500ms+ (half a second or more) so someone shifting 300 or more ms faster than you per shift your losing too many feet per second with each shift which equates to many bike lengths over time in addition to you having to close the throttle blades to perform the shift your creating turbulent airflow each shift also disripting the afr more which takes away efficiency which in turn takes away power ..i see your shift light is set at 11k.. might be a bit too early especially for the lower gears.. i know you may have it at peak power (10,200-10,500 actual rpms for the gen 2)but trust me it helps to go a bit deeper because in the lower gears your rpms will drop so severly from the internal gear ratios being what they are youll start off in the next gear far below peak power and have to waste time and energy building back up to peak vs going deep and falling into the next gear closer to peak, not to mention even going past peak power is still stronger acceleration than just before peak power of the next gear ratio which is harder to pull..basically revving 800 rpms deeper in 4th is still giving you a quicker rate of acceleration than being just shy of peak or even at peak of 5th gear simply because 4th gears tq is stronger than 5th gears so over rev wont kill you especially if your tune and exhaust dont have much of a power drop in the first place.. most stock motor gen 2 busas dont even lose more than 6whp and 10ft lbs of tq from peak to rev limit anyway so its best to keep the momentum going and use the over rev just from the tq of the current gear...sorry for the long book but i do high speed racing with various bikes frequently and just trying to help..keep up the good work.. just make a few tweaks and go back at em..stock ecu will still rev out to 11,800 on the guages on a gen 2.. not in 6th ofcourse till you flash it to get rid of the governor.. ride safe..
dont let out my man, happens quite often with that bmw, there strong 2nd thru 5th but as i saw the margin he was pulling when u hit 5th he wasnt pulling anywhere near as hard as when u were in 4th, it may seem discouraging having him come around you at 160 mph but trust me the busas tq and aerodynamics has the ability to turn the tables in 6th gear, im not sure if your ecu is flashed and you have extended revs but 500 over and your +2 gearing you have is good for about 198mph. beemers struggle in the 185mph+ range... your afr seems to be pretty good..you should trying going a tad richer to help efficiency at higher speed with the change in ram air or even make 5th and 6th gear richer than the other gears to aid with that, ram air at top of 3rd is far different and has different needs than top of 5th and especially 6th. might wanna pull a degree of timing in 6th also anywhere above 9krpms, maybe 12.8 to 13.0 should be your target.. if you cant see through that windscreen id change it to a clear double bubble or zero gravity light smoked at the darkest so you can get as low as possible and out of the wind and still see. hopefully you have a full exhaust, and high flow filter (bmc race, dna, sprint). full exhaust on a gen 2 is 47 lbs so if you just have slip ons your in need of some weight loss.. also not sure of your weight vs the bmw riders weight but again his rate of acceleration when u hit 5th wasnt anything you couldnt come back from..invest in a quickshifter, bazzaz standalone is a very good unit and allows gear by gear kill times and doesent require hooking in with a piggyback fuel tuner. a quickshifter wouldve kept him off your back alot longer as hes got a factory quickshifter propably set anywhere from 50ms kills to 200ms, your shifts are probably 500ms+ (half a second or more) so someone shifting 300 or more ms faster than you per shift your losing too many feet per second with each shift which equates to many bike lengths over time in addition to you having to close the throttle blades to perform the shift your creating turbulent airflow each shift also disripting the afr more which takes away efficiency which in turn takes away power ..i see your shift light is set at 11k.. might be a bit too early especially for the lower gears.. i know you may have it at peak power (10,200-10,500 actual rpms for the gen 2)but trust me it helps to go a bit deeper because in the lower gears your rpms will drop so severly from the internal gear ratios being what they are youll start off in the next gear far below peak power and have to waste time and energy building back up to peak vs going deep and falling into the next gear closer to peak, not to mention even going past peak power is still stronger acceleration than just before peak power of the next gear ratio which is harder to pull..basically revving 800 rpms deeper in 4th is still giving you a quicker rate of acceleration than being just shy of peak or even at peak of 5th gear simply because 4th gears tq is stronger than 5th gears so over rev wont kill you especially if your tune and exhaust dont have much of a power drop in the first place.. most stock motor gen 2 busas dont even lose more than 6whp and 10ft lbs of tq from peak to rev limit anyway so its best to keep the momentum going and use the over rev just from the tq of the current gear...sorry for the long book but i do high speed racing with various bikes frequently and just trying to help..keep up the good work.. just make a few tweaks and go back at em..stock ecu will still rev out to 11,800 on the guages on a gen 2.. not in 6th ofcourse till you flash it to get rid of the governor.. ride safe..