alright guys, qiestion..

I installed my K&N, Jet Kit, and 15T, and i still got smoked by a 2004 gs500f with NO MODS...  no this is not a rider error.  its my buddy who weighs 15lbs more than me.  i dropped the clutch quicker off the line and was ahead, and he still caught up and passed me, and i can shift quicker, hes not the best shifter...  im just wondering why??

i had my carbs cleaned when the filter was put on...

any clue??    The bike was pretty quick when i forst bought it.  I did one oil change. used the recommended suzuki oil, im using amsoil next.  but that didnt make it any worse.  Then i had the K&N lunchbox put on and jet kit stage 1.  Had a very small drop low-end but a good gain in top end, which i think is normal...  then the 15T front sprocket, which really bumped up low and top end speed, but killed top speed by a few mph...

i would really like to know how he beat me on a bone stock when i have these mods done.  and i had him off the line, and he was already a foot ahead of me when we shifted to second....  this is really weird.

Rider Error.


you can't say its not rider error... obviously.... it is... if you have a better bike.

Sounds like something went awry when the mods/carbs got done or it's as Tragic mentioned.

Quote from: Old Mr. Wilson on September 23, 2006, 07:41:16 PM
Sounds like something went awry when the mods/carbs got done or it's as Tragic mentioned.

but we both had it all the way down through first and i had the jump and he caught up in first... thats how i know its not rider error...  im just wondering if anyone has any suggestions on what they think is wrong...

go back to stock gearing if he is catching back up with you and passing. fyi

but with the 15T i should be faster, especially through first...

faster in acceleration, slower in speed.

Quote from: TragicImage on September 23, 2006, 07:50:59 PM
faster in acceleration, slower in speed.

that makes no sence it would only have a smaller top speed and since you cant redline 6th that wouldnt mater

i think you may of stuffed up the rejet

doesnt matter, if the other bike can use it's power ina gear better it will pull ahead

my bike is fast as crap, with a 14 but if the same bike has a 16 it will stay in 1st longer and 2 longer and third longer

leaning that i will have to shift almost twice as much be cause i am so short in gearing.


it all comes down to when he is shifting.


if there was a power problem i think he would know it.

best thing i can tell you two to do is trade bike than race agian and see what happens

Quote from: deathlucky on September 23, 2006, 08:53:22 PM

Quote from: TragicImage on September 23, 2006, 07:50:59 PM
faster in acceleration, slower in speed.

that makes no sence it would only have a smaller top speed and since you cant redline 6th that wouldnt mater

i think you may of stuffed up the rejet

As I understand it, which is usually pretty damn accurate...

You have a slower top speed PER GEAR... not just over all... Where as you can go 44mph in 1st gear with a 16t.... you can only go 39mph in 1st with a 14t.

Quote from: metallic5spd on September 23, 2006, 07:31:54 PM
Then i had the K&N lunchbox put on and jet kit stage 1.  Had a very small drop low-end but a good gain in top end, which i think is normal... 

This is what happens when you believe your butt dyno and have no objective corroborative testing.  Now you have and now you know. 

The K&N lunchbox is a fraud.

Quote from: Gisser on September 23, 2006, 09:20:32 PM

Quote from: metallic5spd on September 23, 2006, 07:31:54 PM
Then i had the K&N lunchbox put on and jet kit stage 1.  Had a very small drop low-end but a good gain in top end, which i think is normal... 

This is what happens when you believe your butt dyno and have no objective corroborating testing.  Now you have and now you know. 

...the K&N lunchbox is a fraud.

shhhhhhhhhhhhhhhhhhhhhhh... you'll kill the sales.....

Quote from: Gisser on September 23, 2006, 09:20:32 PM

The K&N lunchbox is a fraud.

What are you basing that on? Haven't people done dyno tests after putting the lunchbox on?

yeah, lunchbox same as stock airbox. you want the k&n pods.

Also you could be Killing some Power by Rejetting.Sometimes it isn't Neccassary to rejet.Your just putting more (Just Enough to Kill Power) it all depends on a lot of Factors not just putting a K&N Filter in the Original box.Sure I could see a Rejet with a New Pipe and a K&N.4 Strokes are alot more Forgiving than a 2 stroke when it comes down to simple Modifications.
Not to sound like a Know it all.I'm just a Know a Little.

Try swaping bikes and see if he still beats you. That should put the rider error theory to bed. Do it a few times and make sure the results are consistent. If your bike really is slower, buy a bunch of different size jets and try them out.

A more objective way to see the results would be to do a timed drag strip pass. Of course the results will change from day to day as the temp and barometric pressure change.

Also don't overlook simple stuff, dirty carbs, clogged filters, petcock etc. Also make sure your K&N isn't over oiled, they are actually pretty restrictive when soaked in oil.

If that dosn't work, big bore, oversize valves, port+polish, cams, and nitrous should all help  I'm serious about the other stuff though

Just buy a fuel injected sport bike, may I suggest the Hayabusa since you seem to want to drag race. See my signature I have a modern FI bike and a GS my wife rides the GS now the only reason I did jet's was to correct a horrible lean fuel condition. If you want performance you can spend lot's of money and never be happy with the GS, with the 954 you cant wipe the grin off of my face and it's bone stock. The GS met a need I had at the time I bought it, cheap and simple machine....now it is my wifes learner bike. Once I graduate her to a FI bike I might jack around with turning th 500 into a track tool but even there I will probably just find an SV.

You say you jumped him off the line.  You probably didnt keep your rpms high enough.  You can just someone off the line but if you dont run the clutch long enough the rpms will drop after the jump and youll be going slow just with a fast jump at the beginning.  Thats waht I think you did because you said he caught you by second gear.  If he kept his rpms alittle higher but launched slower he could have still beat you cause he was higher in the rpm range and had more power, but you just jumped the bike and then had lower rpms which is bad for drag racing.  I say rider error.

K&N lunch box Its a RU 2970 filter then you need stage 3 not stage 1.
BTW You have a pipe If not ... swap that ... K&N without pipe = weird bike.
Cool.
Srinath.

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