1st Generation Hayabusa Land Speed Racing Comment with - Parts for sale/donation, Tips!, Stories!, Pictures!

[07WashingtonBusa]

12k is useless unless the engine was built to be strong enough, and the cams/head have the flow to make power to that point.
Most bolt-on Busa engines have stopped making any more hp before 11k rpm, can still continue to rev higher, but aren't accomplishing anything other than stress on the engine.
And yes, you can flash the ecu and set the soft and hard rpm limits, both have presets, but can be increased

Yeah Idk what JohnnyCheese flashes too but that's likely who will be making my adjustments at the track and know he raises it.

That's interesting but how could a higher rpm not equate to a higher top speed. I know gearing commander is just a tool but what is raising the rpm doing

*edit notice you were replying to PDX. raising the limiter would likely have happened but not something I have written in my notes, although I see it all the time. I'm not looking to copy anyone, either and know my mileage may vary. I'm just banking on being lighter than most

 

[07WashingtonBusa]

Hi. Are you from Washington DC or the state?

Washington State

 

[07WashingtonBusa]

This video is on a 2nd gen but the concept is similar.....

That's a big guy! Percs of having an autoimmune disease I'm about 100lbs lighter than him

 

[sixpack577]

Yeah Idk what JohnnyCheese flashes too but that's likely who will be making my adjustments at the track and know he raises it.

That's interesting but how could a higher rpm not equate to a higher top speed. I know gearing commander is just a tool but what is raising the rpm doing

*edit notice you were replying to PDX. raising the limiter would likely have happened but not something I have written in my notes, although I see it all the time. I'm not looking to copy anyone, either and know my mileage may vary. I'm just banking on being lighter than most

Raising the limiter IS beneficial...to a point...then it's just overkill.

 

[Bumblebee]

Moore Mafia raised my rev limiter 500rpms

My bike never sees red line anyway..

I often see dyno charts on flashed bikes maintain power farther out on the rev range before falling off...

 

[07WashingtonBusa]

Raising the limiter IS beneficial...to a point...then it's just overkill.

Definitely a one way ticket to a damaged crank, sheared flywheel bolt and blown main bearings

 

[07WashingtonBusa]

Moore Mafia raised my rev limiter 500rpms

My bike never sees red line anyway..

I often see dyno charts on flashed bikes maintain power farther out on the rev range before falling off...

Definitely. Since I have 0 experience in the standing mile I'm doing whatever will give me a little push. Not expecting much.

 

[sixpack577]

Definitely a one way ticket to a damaged crank, sheared flywheel bolt and blown main bearings

Probably throw a rod through the case or drop a valve through a piston first...definately a good way to make a boat anchor...

 

[sixpack577]

Definitely. Since I have 0 experience in the standing mile I'm doing whatever will give me a little push. Not expecting much.

Fuel soft cut is turned off, redline up by 600, and the engine is still capable of making power in that extra range, as said, after that, it's just over revving/overkill and is no longer making power.
Fuel hardcut/rev limiter remains.
Like most bikes, they are set conservatively from the factory.
Check out some Busa dyno charts and you will see how the power starts to taper back down in the high 10k, then drops off/hits redline in the low 11k rpm range.

 

[michael parris heuberger]

Raising the limiter IS beneficial...to a point...then it's just overkill.

Hi. I went to 13500 red line.

Fuel soft cut is turned off, redline up by 600, and the engine is still capable of making power in that extra range, as said, after that, it's just over revving/overkill and is no longer making power.
Fuel hardcut/rev limiter remains.
Like most bikes, they are set conservatively from the factory.
Check out some Busa dyno charts and you will see how the power starts to taper back down in the high 10k, then drops off/hits redline in the low 11k rpm range.

Hi. Mine is set tp 13500 RPM over run is 14400. It is OK if the motor is built for it.

 

[07WashingtonBusa]

Fuel soft cut is turned off, redline up by 600, and the engine is still capable of making power in that extra range, as said, after that, it's just over revving/overkill and is no longer making power.
Fuel hardcut/rev limiter remains.
Like most bikes, they are set conservatively from the factory.
Check out some Busa dyno charts and you will see how the power starts to taper back down in the high 10k, then drops off/hits redline in the low 11k rpm rarange

You're exactly right. Will go 12k and assess from there. Have a buddy gifting me a Wego III so I'm sure I'll learn a fair amount come March.

Probably throw a rod through the case or drop a valve through a piston first...definately a good way to make a boat anchor...

been there racing my 59 rambler super

 

[07WashingtonBusa]

Hi. I went to 13500 red line.

Hi. Mine is set tp 13500 RPM over run is 14400. It is OK if the motor is built for

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