Torque Comparison
2003 Kawasaki ZX-6R (636) v 2003 Yamaha R6

This is the 2003 R6 stacked up against the 636cc 2003 Kawasaki ZX-6R.  Both runs were completed on the same dyno on the same day.  The R6 had 900km on the clock and a Yoshimura Muffler.  The Kawasaki had covered 1,500km and had an Akropovic system on it.  Neither machine had a Power Commander fitted.  By the look of these charts the R6 in particular could do with a Power Commander to help fill that mid-range hole, which may be only apparent due to the aftermarket muffler.

It should be noted that these tests were carried out on bikes from dealerships and not on 'journo-specials'.  By that I mean the distributors have not specially prepared these machines.  Thus we believe the results are consistent with what a consumer would expect to get from their pride and joy.

Power Comparison
2003 Kawasaki ZX-6R (636) v 2003 Yamaha R6

2003 Yamaha R6 (Foreground) - 2003 Kawasaki ZX-6R (636)

By following this link you will see the 2002 Kawasaki versus the new fuel injected 2003 Kawasaki.  From this graph it seems apparent that while some gains have been made with the new model, the improvements are not huge.  Through the mid-range it seems the curve has just shifted around a little.

• Dyno Shootout - Yamaha FZ-1 v Honda CB900 Hornet v Kawasaki Z1000