Oh my, what went wrong?

Ok, I have been dreading this moment for awhile now. I decided back in August that my little R6 needed more pep. So I did the typical regearing, and ended up with a 520 chain, and 15/49 gearing. (Stock was 532 with 16/48.) At about the same time I ordered a yahmaha Race throttle or 5/8ths of a turn. My plan was to install the throttle grow accustomed, and install the sprockets. What happend was I got impatient with waiting on the throttle, witch ended up taking a little over three months to get. So I put the sprokets on and less than a week (and one ride later) my dealer calls and tells me my parts are in so I install it and wow is it short turn! Well it got me thinking and I was fearing my first ride on the bike. Here my problem MY BIKE STILL FEELS WEAK! Anyway, other than moving everything revs up the bike feels the same. Next is dynotuning....

Hmmm, that's definately peculiar... I've got nothing...

Weak in what sense? the top end? you went from 3.00 to 3.27 ratio, you got more torque to get off the like quicker and lost top end speed.
what do you want to accomplish?

Well, I would have liked to have had a bit more acceleration,& like you said I lost the top end, but it seems that I'm not really accelerating any quicker. Of course It might not be noticable on my slightly anemic (I think that's spelled close) 600. I'll have to go ride with another R6 to find out.

EDIT: I'm now thinking some more work is in order. So please pass on your opions as to what should be next
1. Lighter Wheels
2. A bit of engine work (I'd like to stay on Pump gas)
3. Something Else

So far I've done nothing performance wise, short of the throttle and new sprokets. Thanks.

Time to Rejet. With a 15/49 you should have all the low end surge you need.

If you want more power go for an aftermarket exhaust and rejet. THere are a lot of good exhaust systems out there. IE TiForce, Akropicic (sp), M4, HMF.

If you want to go a step further, throw in some cams and high compression pistons. If you have alarge budget, toss in some titanium connecting rods and have the crank lightned and balanced..

If you want to swap out the rims, do you homework. A lot of the race rims do not fare well on the streets.

If you dont have much experience with a bike you will not notice a power band difference with a new pipe. Re-gearing you should notice a difference. Kennedy you dont have to do all that to gain some power. Carb mods, exhaust system, and re-gearing is where you gain all your power. If you dont already have a pipe I suggest a full system. Just about any full system will give you the same power increase so there is no need to spend over a grand for akra or anything like that. A yoshimura will get you just as much at half the price. The only difference in the systems is in the power band. Some may have a few extra in low end some in top end. Just depends. Get a full system though or your power increase will be almost nothing. Also if you can grab some V-Stacks. They can be had for pretty cheap.

And its AKRAPOVIC not Akropicic.

I have an Akra slip-on, and oddly enough I have an Ivan's jet kit that needs to be installed. The problem is that in colorado spring there is only one guy with a dyno, and I'm having trouble getting ahold of him. Also my cash is very short right now (I just got my new SS a less than a month ago) The other thing is my bike shouldn't that far off on jetting. (meaning the plugs show no signs of a rich or lean condition) Yet, I do believe it is in order. After thinking about this for a while I can't help but wonder if a new clutch would be a good idea, mabey an EBC kevlar kit? I'll keep tinkering.

I was just throwing out some suggestions. Some of them are big budget mods.

IMO Yosh exhausts are not worth the money. The same performance can be found in the less expensive systems. IE: M4 and HMF Engineering.

IMO the best mods for a street bike are brakes and suspension. Like the Pirelli ads said: Power is nothing without control. Most modern sport bikes have more power that they need for street duty, but we all want more. :naughty:

Ivan is selling jet kits now.... :rolleyes: I wonder who he is going to threaten to sue over this one. (Its a long story)





Unless you are having problems with the clutch, there isnt usualy much of a reason to mod it. If your are going to beat on it a little (wheelie or drag race), a billet basket will be in order. I'm not saying not to mod the clutch......

Well thank you all for the advice. I tore the bike down to rejet it, and next I was going to start improving the brakes (Better lines, mabey HH pads and a radial MC) from there I really don't know. If I do anymore with the exhaust I'll be getting the GTYR Head pipe. Oh, but more advice is always welcome.

Just a little update:
I have rejetted, and I put on an ignition advancer. Much much better power wise.
I've now got Kevlar brake lines on the front and a SS line on the rear.

So the power is there but the brakes a very scary. So, I think I might have saturated the pads with brake fluid. The feel is good they just don't work as they did. Meaning more effort is required to produce slower braking.

Anyway, do you all have suggestions for pads? I've been thinking of EBC HHs has any one used these?

Yeah im running the EBC hh pads and I like them. I can tell a difference in the stopping power. They work great. Just make sure you break them in as per EBCs instructions. I had the galfer pads before these and they both about the same too me. But both are better than stock.

Thanks

I finally got around to uploading some pics so go here...Http://www.streetsourcemag.com/Profile.aspx?ProfileID=26535