Over the summer I've been running my bike at the drags quite often. Been there about 7-8 times throughout the summer. Im riding an 06 CBR 1000RR. Just wondering what I can do to it to make it better for the drags yet still really good for out riding on the street. So far the only performance mods I did to my bikes is a Yoshimura Carbon Pipe and a Power Commander, Besides that everything else was just for looks.
I was thinking about getting a 520 chain conversion and change the sprockets but I dont know what size What other good mods could I do and still have it great for the street cuase thats where most of my riding is.
Thanks

 

+1 for the front sprocket for acceleration, k&n filter, timing advance, did you buy a full exhaust or just the slip on?

 

Got it backwards, its teeth down in front and teeth up in back for accel.

Doing the opposite increases top end but kills acceleration at a sickening rate.

 

+1

sprockets will make the biggest diff.

 

Hopefully you didnt do that to your bike as you would be much slower off the line.

You are incorrect. Going DOWN in the front and UP in the rear increases acceleration. Not vice versa.

The smaller front sprocket gets more turns per engine rotation, and the larger rear is more matched to the tire so it takes less turns of the rear sprocket to get the rear tire up to speed. Do some research before you speak on things you know obviously nothing about.

Heres an excert from sport rider magazine.

We made the usual runs with the stock gearing to establish a baseline, then changed the countershaft sprocket on both bikes to a one-tooth smaller unit (15-tooth on both the Honda and the GSX-R). We then lowered the gearing further by fitting a 47-tooth on the Suzuki (stock is 45-tooth), and a 43-tooth on the Honda (stock is 40-tooth).

The results in the roll-ons were predictable. Major gains were apparent in both gears, with mph picking up drastically in fourth gear roll-ons. In fact, check out how the little GSX-R came very close to nipping at the RC51's heels with just the smaller countershaft sprocket. If you can put up with increased rpm at cruising speeds on the highway, there's some major performance gains to be had with revised gearing.

 

i was saying +1 to the above post...guess i should've made that clearer since we are talking about sprockets

so there is no more confusion...i agree down 1 in the front. that's the equivalent of around up 2-3 in the rear. any more than that and you'll be a wheelie king...negating the change in the first place.

 

so -1 in the front?? How many should I go up in the rear?? what about the 520 chain?? I just have a slip-on Yoshimura on it. Other guys I talked about said about getting an insteaded swingarm but I dont want to do that and they said about sprockets. I'll get different sprockets and chain over the winter since drags are soon over for the season. How do I change the timing?? Anything else I can do to make this thing faster in the 1/4?? I'll be up almost every friday night next year!!

 

Check out factorypro.com, they have a shift star upgrade that will make your shifts smother and faster, could also get a Jardine 4-2-1 Header from starcycle.com.

 

I went -1 +4 and helped alot

 

Jetting up for my cut down D&D, strapping the front down, and -1 front sprocket took me from 11.66 @ 116 to 11.36 @ 118. I was launching at 10, 11, and even 12. 12 and a little too quick on the clutch caused about a 2.5' wheelie, which made me miss 2nd gear, but I STILL ran an 11.55 @118. [8D]