05 600 + full exhaust vs stock 05 750

A friend of mine just bought a 05 gsxr600 with a full exhaust. He keeps telling me that there is no real difference between the 05 750 and the 05 600 (with the full exhaust). He wants to race as soon as the weather gets warmer. My thoughts are I will kill him especially at higher speeds. My question is how much faster is the 750 at lower speeds then the 600? Is he correct in saying a 600 with a full exhaust is the same as a stock 750? Seems that would not makeup the cc difference. Anyone race a 600 on there 750? Outcome?

It all depends on the Riders abilities. Who ever can launch better is going to win.

It all depends on the Riders abilities. Who ever can launch better is going to win. Both riders being = it still seems that the 750 would have the advantage? I know after selling my 600 the 750 has much more low and mid range but it also feels MUCH more powerful at higher RPM's as well. I guess this just surprises me...

An exhaust usually gives more top end power, but not a ton for the low end, sometimes even slight losses down low. And anyways, the 750 with the bigger engine has more low end anyhow, just work on your launches and learn not to bog it (I've been workin' on that lately) and you'll take him easy

even if he has Power commander with his full exhaust, bike now a days comes out to from the factory almost to it full potential. He would be lucky if he can get 10 horses plus on the rear. As long as you don't screw up on your launch, you own him

Both riders being = it still seems that the 750 would have the advantage? I know after selling my 600 the 750 has much more low and mid range but it also feels MUCH more powerful at higher RPM's as well. I guess this just surprises me... exact same rider on both bikes, the 750 is gonna win

yea they are all right, its all about the rider and launch. i have a stock 01 600 and my buddy has a 02 750 full exhaust. last month we raced and he launched out quicker and of course beat me...but then 2 weeks later i got a better launch and i won but very very slightly. so work on that launch of yours, you do have the faster bike even if you start the exact same...make sure you've got all your gear on of course. good luck

even if he has Power commander with his full exhaust, bike now a days comes out to from the factory almost to it full potential. He would be lucky if he can get 10 horses plus on the rear. As long as you don't screw up on your launch, you own him This tech at a local shop told me that a power commander alone could open about 15hp on a stock bike.

This tech at a local shop told me that a power commander alone could open about 15hp on a stock bike.Maybe the older model, yes. But the new ones are harder to get more horses out. I can't remember which magazine I saw that and they talked about newer bikes and it's mods.

The new 600 and 750 are identical in every way except motor. The 750 has 20 more hp bone stock. you cannot gain 20 from a full exhaust, max will be around 10 hp with a good map. So, the 750 is faster. Now, the rider ability does play a big part on who will win, because a 600 rider can smoke a rider on a 1K if they do not kno what they are doing. It all depends if you are talking straight numbers bike vs bike or if you are talking about his abiities vs your abilities. Someone as concerned with this :headscrat and saying things about the bikes being equal :headshake sounds like he needs to do less talking and more listening :cool:

This tech at a local shop told me that a power commander alone could open about 15hp on a stock bike. :laughingr :hmmm: :headshake he lied to you severely and should not be allowed to work at a bike shop ever again.

Well we finally raced. It was closer then I had thought. We ran two times and had the same results both times. Both of us can ride and we are about the same size. From 0 to 80 I was a bike to a bike and a half in front. From 80 to 110 I was two to two and a half bikes ahead. I give the 600 credit, with a few mods it is a very quick bike. I guess I need to get some mods on my 750 and try again…

Bike and a 1/2 ??? You murdered him. :thumbup: Let him drop a tooth in front and you would think likewise

the new cycle world has a 600 shoot out and they tested all the 600s stock and then with a pipe and ecu upgrade. the average increase in hp was about 2. The 05 gsxr with a yoshimura tri oval exhaust and a yosh ecu only got about 1.4 hp more than stock. conclusion.............waste of money.

the 600 will get beat...even if the 600 rider is a little bit better....big big difference in bikes..especially that 04 and up 750 is only 4 lbs. heavier and 20 more hp stock.....that full exhaust is only gonna give a +/- 7-8 hp difference unless its a hindle, maybe squeeze out more..but thats top end....

the 600 will get beat...even if the 600 rider is a little bit better....big big difference in bikes..especially that 04 and up 750 is only 4 lbs. heavier and 20 more hp stock.....that full exhaust is only gonna give a +/- 7-8 hp difference unless its a hindle, maybe squeeze out more..but thats top end.... Thats actually a lot..maybe lesss

This tech at a local shop told me that a power commander alone could open about 15hp on a stock bike. not sure that just by adding the power commander alone can do that...BUT...i did gain 14 hp by adding a full yosh trs system,no power commander,added velocity stacks to the box and had a specialist."turbojohhny" www.exoticycle.com remap the system. these bikes arnt that hard to get more power from,i think its actually harder to come up with enough cash to do it. i do recomend that anyone buys a full system rather than a slip on/bolt on...your spending half the money for those and all you really get out of it is sound,no performance increase to write home about,i noticed a difference right away in throttle response just by adding the full setup. my .02

This tech at a local shop told me that a power commander alone could open about 15hp on a stock bike. No way..that guy is on crack.....haha...all it may do is smooth out the power delivery-On my Gixxer 750 with mig high mount slip on, I had bone stock gearing and so did my friend, same bikes, he had a Yosh slip on and a power commander custom mapped, his bike had less miles and my bike pulled harder(both bikes broken in over 4000 miles)....power commander only gets the max potential out of your mods sometimes if it is mapped correctly, other than that it can hurt performance if not optimized the right way, it is needed to smooth out a full system however, waste of money for a slip on...my .02 :thumbup:

it could have been closer than you thought do to the fact that your buddy can easily keep that 600 planted to the ground than you on the 750. The 1-2 shift is the most important in a drag race if you shift to early and let the revs down you are doing the bike no justice. With the same weight rider and you keeping the wheel on the ground with slipping the clutch and some good solid shifts you will kill him by way more than that! I have an 03 750 and weight 250, my buddy has a 03 600 and weight is 155 when we quarter mile race even with a bad launch i will usually pull him by the end of first, to mid second. The key to the 750 is slipping that clutch and keeping the wheel down!

The new 600 and 750 are identical in every way except motor. The 750 has 20 more hp bone stock. you cannot gain 20 from a full exhaust, max will be around 10 hp with a good map. So, the 750 is faster. Now, the rider ability does play a big part on who will win, because a 600 rider can smoke a rider on a 1K if they do not kno what they are doing. It all depends if you are talking straight numbers bike vs bike or if you are talking about his abiities vs your abilities. Someone as concerned with this :headscrat and saying things about the bikes being equal :headshake sounds like he needs to do less talking and more listening :cool: I agree with most of what you said... except that "you cannot gain 20 from a full exhaust, max will be around 10 hp with a good map." I have seen gains near 18 wheel hp with a full exhaust and a pcIII only, on the '04 gsxr600. :thumbup:

my 01 750, full M4,tre,short stacks,k&n(at the time),stock remap/dyno, and i hit 141hp peak.. but the guy that tuned it said my bike was a rare run... but then again my buddy did a k&n,tre,full hindle,stock remap/dyno and got 136 i think?