Do the throttle bodies start closing off in 6th gear, or near 186 mph?

[smithabusa]

Watch the video to see I also show where fuel starts cutting out in 5th and 6th gear as well as what happens as we go all the way to 230 mph on my Gen3 electrical bench.

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[Spudley]

Thanks Greg !. That clears up any misinformation that has been floating around.

 

[Robert 0046]

Watch the video to see I also show where fuel starts cutting out in 5th and 6th gear as well as what happens as we go all the way to 230 mph on my Gen3 electrical bench.

Powered and monitored by a MaxxECU sport

Hi Greg how can you help us all fix the problem?

 

[smithabusa]

Hi Greg how can you help us all fix the problem?

What problem am I fixing?

 

[Spudley]

I think Greg is helping us fix the problem. He's clearing up all the miss information we received from multiple sources over the course of the last year since we bought our bikes. Greg just breaks down all the bs !.

 

[smithabusa]

I will be working in a 6th gear to 5th gear mod so you can pull to 1-5th gear redline in 6th gear if you have the hp, aero, and space LOL

 

[dcnblues]

It occurs to me that if I gear down the sprockets any, I may not need your mod at all. Has anyone calculated what top speed a stock bike is geared for at Redline? Many thanks.

 

[Got-Busa?]

It occurs to me that if I gear down the sprockets any, I may not need your mod at all. Has anyone calculated what top speed a stock bike is geared for at Redline? Many thanks.

Many factors but I’ll have exact info next weekend if weather cooperates when I’m testing. If it’ll pull it like the Gen-2, 192-194 before computer shuts it down.

 

[Parmenion]

It occurs to me that if I gear down the sprockets any, I may not need your mod at all. Has anyone calculated what top speed a stock bike is geared for at Redline? Many thanks.

Changing 190/50-17 to 190/55-17 and keeping same sprockets:
the limiter is set at 11202 rpm from 1-5th gears and at 10554 rpm for 6th gear:
1st gear 135.7 kph or 84.34 mph
2nd gear 183.2 kph or 113.86 mph
3rd gear 232.5 kph or 144.5 mph
4th gear 276 kph or 171.54 mph
5th gear 312.3 kph or 194.1 mph
6th gear 320.4 or 199.13 mph (10,554 rpm)

 

[Got-Busa?]

Changing 190/50-17 to 190/55-17 and keeping same sprockets:
the limiter is set at 11202 rpm from 1-5th gears and at 10554 rpm for 6th gear:
1st gear 135.7 kph or 84.34 mph
2nd gear 183.2 kph or 113.86 mph
3rd gear 232.5 kph or 144.5 mph
4th gear 276 kph or 171.54 mph
5th gear 312.3 kph or 194.1 mph
6th gear 320.4 or 199.13 mph (10,554 rpm)

Remember you’ve got to subtract 4-6%+ for tire slip, wind, aero, etc to get actual.

 

[dcnblues]

Remember you’ve got to subtract 4-6%+ for tire slip, wind, aero, etc to get actual.

So actual speed runs should be downhill and with a Tailwind. I read you...

 

[dcnblues]

It occurs to me that if I gear down the sprockets any, I may not need your mod at all. Has anyone calculated what top speed a stock bike is geared for at Redline? Many thanks.

Who wrote that? Pretty dumb post. Not sure what I was thinking.

 

[dcnblues]

Changing 190/50-17 to 190/55-17 and keeping same sprockets:
the limiter is set at 11202 rpm from 1-5th gears and at 10554 rpm for 6th gear:

6th gear 320.4 or 199.13 mph (10,554 rpm)

Thanks very much for that.
6th Gear at 11202?

 

[Spudley]

Only problem is you can't get to 11,202 r.p.m. in sixth gear.

Although you can in fifth gear.

 

[dcnblues]

Only problem is you can't get to 11,202 r.p.m. in sixth gear.

Although you can in fifth gear.

BoostBySmith's 6th gear de-restriction prototype | Gen 3 Busa Information

Someone was kind enough to send me their GPS sensor to come up with a solution for guys wanting to rev 6th gear all the way out. First prototype of the Gen3 Hayabusa 6th Gear De-Restriction by BoostBySmith, switchable and makes your gps sensor only output up to 5th gear, allowing you to take...

www.hayabusa.org

 

[Spudley]

Yes indeed. Factory tune reduces rpm for 6th when selected. With Greg's gps fix your 6th will read 5th twice. Once in fifth, and then when you select 6th gear. You'll be able to use the extra rpm.

Although your gear position will read 5th on the display.

 

[Parmenion]

To get max target speed you need to match it to max power which comes around 10000rpm. Therefore a longer gearing is needed. Rev limiter is a safeguard not a top speed limiter, although Suzuki is using it in sixth gear to honor the manufacturers agreement of 300kph top speed.

 

[Got-Busa?]

To get max target speed you need to match it to max power which comes around 10000rpm. Therefore a longer gearing is needed. Rev limiter is a safeguard not a top speed limiter, although Suzuki is using it in sixth gear to honor the manufacturers agreement of 300kph top speed.

Stock bike doesn’t have the power the pull it with a gear change unfortunately.