does the gsxr 1000 & 750 have the same mods as you have doneTo: OP
Unless you stretch the swingarm on the 1000cc bike you wont get a better launch from a stop with it. Really 600cc bike can launch very well. When ever I raced my friends 1000cc GSXR against my 636cc ZX6R, I am always ahead of him about 200Feet or more untill I get to about 120mph thats when the litre bike pulls ahead of me. Its harder to launch a litre bike than a 600cc bike. If done right your 636 can beat the gsxr 750....I know this cuz I have beaten my friends 750 from a red light.
I Ride: 2006 ZX6R Ninja 636cc (Same bike as yours)
My mods were PowercomanderIII with Dyno tuned map from a local Dyno shop
Two Brothers Titanium V.A.L.E Dual Exhaust
-1 Tooth in front +2 in the back
Racing Camshaft, Lighter Titanium Vavles
I also did this mod: I-Hacked.com Taking Advantage Of Technology - Hacking a 2005 Kawasaki Ninja ZX-6R
This mod really works helps with your top end and give you 3 more horsepower at 14000 rpms
All these mods except the dyno was done by me.
My bike was Dyno'ed at 131HP at the wheel 49HP Torque much better than stock