I have a 03600RR and was wondering what rpm most people launch at. I know the answer is probably "as high as you can with out looping it", but is there a certain rpm where you wheelie a little but still launch hard enough to get a good 60ft? Thanks
Jerrad

it's all in how you ride the clutch. RPM's up high. Clutch out but only to a point. You don't just dump the clutch. If this is your street bike don't ride the clutch real hard. A stock clutch won't handle it.

Alright, thanks. When you say high does that mean 8k or what?
Thanks
Jerrad

i hold it at 11

Oh, okay. I really appreciate the help. Thanks
Jerrad

You could consider a two-stage rev limiter. Dyna makes an easy one to install. This has two benefits. 1. you can set the take off rpms which makes your launch more consistent and not have to do sound for where your throttle needs to be positioned. 2. by not "holding it" at a certain rpm, you can concentrate on the delay of the timer bulbs on the tree. 3. The second setting of the limiter controls the over rev which you want to stay away from as the bike will lose horsepower band and possibly a mis-shift.

With my 600 I would leave a about 7,000 RPM's and as I let the clucth go slowly i would roll on the throttle. as long as you don't drop the clucth the front wheel should not come up to bad. Tip keep your weight on the front of the bike that will help alot.

Hope this is of help!

I go around 10 grand. But my bike is lowered 4 inches in the rear and 2 in the front then I strap the front and I have a 10 inch over swing arm. That front end just stays down even on the bottle.

Thanks for all the help guys. I might look into the limiter you were talking about. How long will a stock clutch hold up under these types of launches? Thanks
Jerrad

Stock clutch = not long if you are slipping it hard. Take it easy out of the lights and it will last a long time. I have a MPS full lock up clutch. Works great but takes awhile to get use to on the street.

I dont hold it at one rpm i rev it between to mid and high and feather the clutch out. I meen it works for me i have only been the the 1/8 mile but i ran a 6.98 so that shows something. Just do what works with your style and have fun..

i got a 06 600 and i leave at 12 5 all the time. its all about slipin the clutch . i mean some ppl say that the stock clutch wount handel but iv been on my stock one since march and all i ever realy go though is 1st fiber. but it dose help if u got the bike lowerd and straped that will help . and if u plane on keepin the bike for a long time then u can get a longer arm if u want that will help to.

i have a 056rr and i kinda launch between 4-7000 rpms. and feather the clutch threw first and jam it hard in second and third it works really good for me. but i guess you have to just run as many time as you need to get it down with your own bike.. ken

Cross post: http://www.cbrforum.com/m_168133/tm.htm

Just to add to all of what's been said (I hope).

The basic way to go fast is to get the most horsepower to the ground as you possibly can without doing a massive wheelie.

First you need the most horsepower being created by the engine - that's why people say rev the engine to such and such an RPM. It's true you want more revs, but to maintain your revs your throttle hand must move. As you add load to the engine you will need to give more throttle to maintain those high rpms. Don't let the power drop as that will only slow you down.

To get the power to the ground you have to feather the clutch. Think of it as a tap, the more you open it the more you allow down to the road. Don't let the clutch out too quickly - you will either loose horsepower or lift a wheelie. Neither help you go fast. Don't let it out too slow or you'll sit there going nowhere - a safer but none-the-less ineffective racing strategy.

Next - the more you put to the road, the more you load you engine. Keep giving it more and more throttle to keep the horsepower up DESPITE the added load to the engine.

Once you've got the clutch full out and the throttle full on it's going to be milliseconds before you need to shift to 2nd.

After the shift to second, perfect the tuck, and run her out through each gear.

i could really launch hard wherever, but to be perfectly honest its really not good for the bike and if your bike has balls it has balls and a 5k launch is sufficiant if all the power is getting to the ground. i know with my stretch bike if i launched it at above 6k the tire would light up and not stop, though if i was using a pilot power or shinko drag tires that would probabaly stop LOL.

On the 600 - 5k is about as high as you can get and dump the clutch. Problem is that you stay down in the low revs after launch longer than you need/want to. If you want to go really fast, however, you need to get the revs up and keep them up. Sure we both put the same power down (me feathering the clutch, you using the throttle) for the first few feet - however - you at that point need to roll on the throttle to create power, I just need to keep feathering... I'm going to eat my bike up in short order, but it will be faster in the short term ;)

Do I launch like this? Maybe twice a year on the street when I really want the hole shot ;) Elsewhere? sure on occiasion...

dumpin at 5 will just make you bog. slip from 4 to 6... i get 1.6 60 foots. you should be able too also..with out killing that poor bike.

I need to learn how to launch too. I just got beat by my friend 05 kaws 626 with full titanium mizzu exhausht and 03 kaws 626 lowered w/ yosh slip on and k&n air filter. I have 05 cbrRR with yosh slip on. I was so mad coz I always left behind when I launched. I'm gonna try on 5Krpm next time.
Also does anyone always shift gear witout the clutch? Even it is up or down shift? My friend told me it will also make your clutch last longer. Is this true? When I tried to shift up and down without the clutch, it's kinda hard to shift. Does anyone has any input on this?

Maybe the kawa's had a 10cc big bore kit that they didnt tell you about.;)

IMO, need like 11k+ and a good feel for the clutch.

Maybe some ankle weights velcroed around your forks too.

So basically if kaws 626 and cbr600rr race stock to stock...kaws will win?

Not with me on the cbr:).

The Kawasaki's are 636cc quite a difference in displacement, they are considered the cheater bike of the "600" class.

Think they push 5-10 more hp, but not exactly sure. And its all driver too. My buddy rides a 636 and falls behind.

I know mine should be a lil faster than theirs. I'm new to the bike I bought mine in July. I'm still learning. I was afraid my bike will jump up and fall on me when I raced with those guy. I need to learn how to launch. Hey bushmasterAR15 do you hold the clutch when you shift up or down? My friends said I don't need to and it also make your clutch last longer, is that true? I tried to shift mine without holding the clutch but it was kinda hard to shift. Mine is 05 cbr 600rr.

Yea I use the clutch. I tried not to a few times and it didnt want to go in gear which should tell you its not normal. As for it making the clutch last, nahh. In fact its prolly worse for the tranny which is ALOT more expensive than a clutch. Im not sure what you would gain from clutchless shifting, just practice fast smooth shifting. I can shift very fast with the clutch hardly letting off the gas, and my bike thanks me for it:).

I need to practise..it's a good weather outside I'ma do my homework...