Hayabusa Performance

Suzuki's amazing Gsx1300r hayabusa is regarded as the king of speed, the fastest production bike ever made.

With speed restrictions in effect starting with all 2001 model bikes, limiting top speed to 186mph,

it's likely that the 1999/2000 Hayabusa will remain at the top for some time.

When Motor Cycle News tested the bike it reached 193mph at Bruntingthorpe in England and 194mph at the Nardo test bowl in Italy.

A Spanish mag has clocked it at 195mph. In 1999 Cycleworld reached 194mph. Some other mags tested between 186mph and 191mph.

 

The Australian Motor Magazine (November 1999) has done some interesting Speed and Performance comparisons.

Make Engine Weight Power Top Speed 0-60mph 0-100mph
Suzuki Hayabusa In-line 4, 1.3 ltrs 474 lbs *176.8 hp 193.2 mph 3.15 secs 5.44 secs
Lamborghini Diablo V12, 5.7 ltrs 3373 lbs 492.3 hp 183.3 mph 4.90 secs 9.37 secs
Robnell SC 429 V8, 7ltrs 2800 lbs 421.6 hp 146.6 mph 5.29 secs 13.23 secs
HSV R8 Holden V8 5.7 ltrs 3767 lbs 340.0 hp 156.6 mph - 12.72 secs
Porsche 911 Flat 6, 3.4ltrs 2910 lbs 300.0 hp 163.4 mph 4.99 secs 10.95 secs

MotorTrend Tests (2002)

Porsche GT2......... 6cyl,3.6L,turbo 3175 lbs 456.0 hp.. 195.0 mph.. 3.77 secs 8.91 secs.
Corvette Z06 V8, 5.7 ltrs....... 3118 lbs 405.0 hp 171.0 mph 4.07 secs 9.48 secs

 

Viper GTS Coup.... v10, 7.99 ltrs.... 3415 lbs 450.0 hp.. 177.0 mph.. 4.00 secs 9.20 secs.

*I presume this hp number must include the effect of ram air (SRAD) at high speeds,

as it is generally accepted that the average stock Hayabusa produces ~156hp (rear wheel) on the dyno.

The Hayabusa requires about 175rwhp (as measured on a dyno) to achieve 200mph.

Top Speed In Gears:

(stock gearing)

1st 80.2 mph
2nd 108.2 mph
3rd 137.4 mph
4th 163.2 mph
5th 184.6 mph
6th 201.0 mph

 

Dyno History

In stock form, my Hayabusa started out a little low on Hp compared to the average.

With slip-on exhaust cans, and some tuning, it made only 152.6 rwhp! Well, not for long!

 

 

Installed Yoshimura tri-oval duplex exhaust, Power commander II, Modified the air box,

and had tuning done on a dyno with a/f meter. I gained 12.7 rwhp with these changes, not too bad!

 

 

I had the Yoshimura stage one cams installed as set by Yoshimura, with a gain, after map adjustments,

of 5 rwhp. These cams were expected to make an 8 to 10 hp gain, unless they were installed with no

degreeing, as was done in my case. So, next will be degreeing these cams to try to gain a further 5 hp,

but 170.4 rwhp ain't bad for now .