Berlin Germany
Registered
hi dears
caused by last postings in this tread
here my trying to explain the differences of the "haya - years" and their effects
there exist 3 "types" of gen1 - haya´s
1. 99/00 unrestricted in speed with 16 bit ecu & 16bit rotor/flywheel - ecu is not flashable!
2. 01 speed restricted to 298 km/h ~ 185 mph with 16 bit ecu & 16bit rotor/flywheel - ecu is not flashable!
3. 02-07 like ´01 also speed restricted to 298 km/h ~ 185 mph BUT with 32 bit ecu & 32bit rotor/flywheel - THIS ecu IS ! flashable!
(see additionally this posting here at .org)
sidewise drawing of ecu
and
all 02.07 ecu´s numbers (available in germany)
32920 - 24F G0 / - 24F H0 / - 24F J0 / - 24F K0 / - 24F L0 / - 24F M1
flashable means : you can change the internal ecu mapping by a computer (+ programm and special interface) however you want.
if you now want to get a 02-07 busa as fast as the 99/00 (340km/h / 220mph) you have to flash its ecu (02-07), means get / flash out the "6th gear limiter" (restriction).
(standard wise, at least in germany, in the us too? , the 02-07 ecu also have a restriction at 2nd & 3rd gear - this you also can flash out)
my brother did so a dozens of times and still do so.
resulting effect - you can install then the 99/00 speedo and it definitely will show the correct speed at ALL speeds you go - from 0 up to 220 mph.
___________________________________________________________________________
i myself did the change from 16 to 32 bit at my ´00 busas twice - both times with 100% full success - my busa ran/runs as fast as before (16 bit ecu)
what to do?
- change the ecu to model of 02-07
- change rotor/flywheel from 16 (8 long "noses/bumps") to 32 bit (23 short "noses/bumps")
- switch two cabels in the two ecu-connectors (a. connector Pin 56 to Pin 33 & b. connector Pin 60 to Pin 53)
- flash out the 02-07 ecu´s 6th gear restriction (and 2nd & 3rd too)
why i did so?
I have to go back a little.
what engine specialists (engineers) explained to me is that the higher the octane, the earlier the ignition point should be set.
here in germany today we only have octane higher than 92 - but the busa´s ignition point is set, at all models, for 89 octanes.
so now, with the 32 bit, i can flash the ig.-point at ecu mapping by computer 4° earlier in separated rpm´s - windows or over the entire rpm-band.
success should be:
these 4° earlier bring a much softer throttle response, which significantly improves driving, especially in areas with a lot of curves and helps to prevent the rear wheel from slipping away in a large inclined position - but it does not bring any more power !
my experiance - the harder you want to go round corners the softer the throttle response should be.
caused by that i will ask my brother to flash next weeks my ecu with 4° earlier at all rpm´s.
(i´m several times per year on our, 40 mi away, little race track to 1st to have a lot of fun
and 2nd to get out the natural 20° inclined position restriction. remember - no human beeing wants normally, caused by nature, to get leaned over than 20° sidewise , because then it fears to fall sidewise )
___________________________________________________________________________
additional info :
at FactoryPro.com (scroll a lot down to "REMOVE THE IGNITION KEY") there is the woodruff wedge (half-moon key) with a fixed setting of 4 ° earlier ignition - with that wedge/key you don´t need to flash an ecu but you will get the same effect of softer throttle response like flashing 4°. (if you turn the key 180° to the right you get 4° later for turbos or nitrous )
a good friend of mine took this 4° wedge (earlier) to his 1441 ccm haya for now arround 5 years without any problems - using 95 (or more) german octane fuel.
caused by last postings in this tread
here my trying to explain the differences of the "haya - years" and their effects
there exist 3 "types" of gen1 - haya´s
1. 99/00 unrestricted in speed with 16 bit ecu & 16bit rotor/flywheel - ecu is not flashable!
2. 01 speed restricted to 298 km/h ~ 185 mph with 16 bit ecu & 16bit rotor/flywheel - ecu is not flashable!
3. 02-07 like ´01 also speed restricted to 298 km/h ~ 185 mph BUT with 32 bit ecu & 32bit rotor/flywheel - THIS ecu IS ! flashable!
(see additionally this posting here at .org)
sidewise drawing of ecu
and
all 02.07 ecu´s numbers (available in germany)
32920 - 24F G0 / - 24F H0 / - 24F J0 / - 24F K0 / - 24F L0 / - 24F M1
flashable means : you can change the internal ecu mapping by a computer (+ programm and special interface) however you want.
if you now want to get a 02-07 busa as fast as the 99/00 (340km/h / 220mph) you have to flash its ecu (02-07), means get / flash out the "6th gear limiter" (restriction).
(standard wise, at least in germany, in the us too? , the 02-07 ecu also have a restriction at 2nd & 3rd gear - this you also can flash out)
my brother did so a dozens of times and still do so.
resulting effect - you can install then the 99/00 speedo and it definitely will show the correct speed at ALL speeds you go - from 0 up to 220 mph.
___________________________________________________________________________
i myself did the change from 16 to 32 bit at my ´00 busas twice - both times with 100% full success - my busa ran/runs as fast as before (16 bit ecu)
what to do?
- change the ecu to model of 02-07
- change rotor/flywheel from 16 (8 long "noses/bumps") to 32 bit (23 short "noses/bumps")
- switch two cabels in the two ecu-connectors (a. connector Pin 56 to Pin 33 & b. connector Pin 60 to Pin 53)
- flash out the 02-07 ecu´s 6th gear restriction (and 2nd & 3rd too)
why i did so?
I have to go back a little.
what engine specialists (engineers) explained to me is that the higher the octane, the earlier the ignition point should be set.
here in germany today we only have octane higher than 92 - but the busa´s ignition point is set, at all models, for 89 octanes.
so now, with the 32 bit, i can flash the ig.-point at ecu mapping by computer 4° earlier in separated rpm´s - windows or over the entire rpm-band.
success should be:
these 4° earlier bring a much softer throttle response, which significantly improves driving, especially in areas with a lot of curves and helps to prevent the rear wheel from slipping away in a large inclined position - but it does not bring any more power !
my experiance - the harder you want to go round corners the softer the throttle response should be.
caused by that i will ask my brother to flash next weeks my ecu with 4° earlier at all rpm´s.
(i´m several times per year on our, 40 mi away, little race track to 1st to have a lot of fun
and 2nd to get out the natural 20° inclined position restriction. remember - no human beeing wants normally, caused by nature, to get leaned over than 20° sidewise , because then it fears to fall sidewise )
___________________________________________________________________________
additional info :
at FactoryPro.com (scroll a lot down to "REMOVE THE IGNITION KEY") there is the woodruff wedge (half-moon key) with a fixed setting of 4 ° earlier ignition - with that wedge/key you don´t need to flash an ecu but you will get the same effect of softer throttle response like flashing 4°. (if you turn the key 180° to the right you get 4° later for turbos or nitrous )
a good friend of mine took this 4° wedge (earlier) to his 1441 ccm haya for now arround 5 years without any problems - using 95 (or more) german octane fuel.