I've done some research and I've tried to take out the good and ignore the hysteria and this is where I'm at.
It's an 04, a K&N Lunchbox is on it's way and the Jardine full exhuast.
I live in sunny southern California. I do occasional track days that always seems to be in very hot places and one track in particular is also higher in elevation. If any of this makes a difference.
Here's what I'm thinking would be best to start with.
Pilots 20
Mids 62.5
Mains 147.5
Or should I play it safe first and do this and go from there? This is from the jetting matrix.
Pilots 22.5
Mids 65 (one post had someone with 67.5)
Main 147.5 or 150
We really need a definative guide for all carb jetting for all GS's based on the upgrades.
I am almost certain you will be too rich with 147.5 main jet. For that you need a race pipe and individual po d filters. But you can start with it and then go down until bogging dissapears.
Also IMO you shouldn't need more than 20 pilot.
Also when jetting remember that you have to select the correct main jet first then others. Correct main jet is when you open throttle wide open at 3k rpm in and it goes to 10k smoothly. I discovered it is best to see those problems in 3rd-4th gear.
m7
I have K & N lunchbox filter Wileyco exhuast this is my rejet. I live in Atl it gets really hot here, elevation is not that high unless I goto the mtns.
Pilot 22.5
Mid 65
Mains 147.5
Mixture screw 3.5 turns out
I have not had any problems pulls all the way to 10K rpm.
Quote from: Wrecent_Wryder on June 20, 2006, 03:18:46 AM
Couldn't be more pleased with my setup - smooth pull from 2,500 or so up to redline. Of course, I'm still running the stock exhaust, and I'll have to change something when that changes. I almost hate to mess with it.
Not only do we need an updated jetting matrix, but it would be great to start a jet exchange. We all end up with a lot of jets we have no use for at some point.
I would start with wrecent's set up. You should be real close.
Speaking of jet exchange. Does anybody have 132.5 mains they would like to trade? I have 137.5's and 140's I'll trade ya.
With my jetting of 20/65/135 with only the K&N lunchbox my bike dynoed lean all the way through the rev range pretty much. I changed the jetting to 22.5/65/137.5 and haven't had any problems. Go from there when adding the full exhaust.
Just wanted to make sure there are 3 different carbs ?
04 +
99-01
and ? - 98
Quote from: AlphaFire X5 on June 20, 2006, 07:25:39 AM
With my jetting of 20/65/135 with only the K&N lunchbox my bike dynoed lean all the way through the rev range pretty much. I changed the jetting to 22.5/65/137.5 and haven't had any problems. Go from there when adding the full exhaust.
It's amazing that the lunchbox filter flows that much better than the drop in. I am a bit rich with 135's with the drop in and full exhaust. I am thinking about oredering the lunch box, so I'll probably have to order some 145 ish mains
Quote from: Jason on June 20, 2006, 08:12:42 AM
Quote from: AlphaFire X5 on June 20, 2006, 07:25:39 AM
With my jetting of 20/65/135 with only the K&N lunchbox my bike dynoed lean all the way through the rev range pretty much. I changed the jetting to 22.5/65/137.5 and haven't had any problems. Go from there when adding the full exhaust.
It's amazing that the lunchbox filter flows that much better than the drop in. I am a bit rich with 135's with the drop in and full exhaust. I am thinking about oredering the lunch box, so I'll probably have to order some 145 ish mains
The lunchbox removes the airbox, thus allowing for much better flow at high speed. You lose some bottom end though (but who is down there anyways?)
I haven't had to deal with full exhaust yet so I don't know the jetting for it, but mine dynoed fairly nicely.
Quote from: blue05twin on June 20, 2006, 07:49:18 AM
Just wanted to make sure there are 3 different carbs ?
04 +
99-01
and ? - 98
'04+
'89-'96/'00 (don't remember if there was a change in '96 or not)
'01-'02
The '04 carbs are only minorly different from the '01+ carbs.
Cool thanks guys. Maybe I''l do my first option and go down on the mains to 145 and work from there. :cheers:
Quote from: leo on June 20, 2006, 10:10:29 AM
Cool thanks guys. Maybe I''l do my first option and go down on the mains to 145 and work from there. :cheers:
I'd say START with 22.5 pilots and 65 mid mains. What sort of elevation are you at? Austin is about 600 feet up, and 65 mid-main is a teensy bit lean.
Quote from: AlphaFire X5 on June 20, 2006, 10:19:57 AM
Quote from: leo on June 20, 2006, 10:10:29 AM
Cool thanks guys. Maybe I''l do my first option and go down on the mains to 145 and work from there. :cheers:
I'd say START with 22.5 pilots and 65 mid mains. What sort of elevation are you at? Austin is about 600 feet up, and 65 mid-main is a teensy bit lean.
I'm guessing I'm pretty close to sea level. I live 15 minutes from the beach.
Okay I'll go with 22.5/65/145 for a starting point.
[h
Quote from: Wrecent_Wryder on June 20, 2006, 02:25:17 PM
Quote from: AlphaFire X5 on June 20, 2006, 10:19:57 AM
I'd say START with 22.5 pilots and 65 mid mains. What sort of elevation are you at? Austin is about 600 feet up, and 65 mid-main is a teensy bit lean.
Alpha- sorry if I've asked this before, but did you end up shimming your needles with that setup?
Nope, just changed the jets.
Can some one provide a linkey for the K&N lunchbox? This is the thing that sits behind the Carbs right.....
PS im a moron
Quote from: TadMC on June 20, 2006, 02:40:02 PM
Can some one provide a linkey for the K&N lunchbox? This is the thing that sits behind the Carbs right.....
PS im a moron
http://usdieselparts.com/moreinfo.cfm?Product_ID=53843
Quote from: TadMC on June 20, 2006, 02:40:02 PM
Can some one provide a linkey for the K&N lunchbox? This is the thing that sits behind the Carbs right.....
PS im a moron
Here's where I got mine for pretty cheap too. It's part number RU-2970
http://www.ajusa.com/cgi-bin/knfilters/details?part_num=RU-2970&ajr_skey=e839485e6558d2ab77c5db4e9f8f14c8
why is it better over stock?
i have been told by many dyno shops now that pods are not the best, no way to get cool air thats away from the engine, were as the stock pulles from somewere else. how ever the lunch box was a better than both pods and stock.
thoughts?
what makes this better. Better yet what kinda performance upgrade does it make
Quote from: TadMC on June 20, 2006, 06:50:27 PM
what makes this better. Better yet what kinda performance upgrade does it make
Removal of the airbox allows for much easier access and removal of the carbs. My bike dynoed at 41.7 HP and that was jetted lean. With a proper jetting it would proably crest 42. It takes away some of your bottom end (theoretically) and adds to the top end. My bike's peak power was at 9500 RPM, rather than the 9000 RPM that stock bikes have. It provides a wonderful change in the intake noise, kinda like a growl on accelleration.
damn 41hp. i dyno at 35hp
but thats on the gsxr1000 can and the drop in k&n , but no rejet. after the Jardine and i guess i wil also go to lunch box, and then have it dynoed again.
when rejeting, what is the best way other than having it on the dyno to test jets?
i was thinking about geting a O2 sensor and meter and using it to tell me whats going on. crazy or good idea?
Quote from: rangerbrown on June 20, 2006, 08:11:28 PM
damn 41hp. i dyno at 35hp
but thats on the gsxr1000 can and the drop in k&n , but no rejet. after the Jardine and i guess i wil also go to lunch box, and then have it dynoed again.
when rejeting, what is the best way other than having it on the dyno to test jets?
i was thinking about geting a O2 sensor and meter and using it to tell me whats going on. crazy or good idea?
The best way is to first make the main jet too rich to see the bogging and then go down until it disappears. Then needle or mid-jet and finaly pilot jet. This way you will be on a rich side which is good for the motor, but not too rich to cause problems. However if you want max power you will have to go leaner and only dyno can tell you the right setup then.
[7
So, what are the best jet configuration for K&N launchbox with stock exhaust?
Quote from: dagofff on March 13, 2007, 02:36:22 PM
So, what are the best jet configuration for K&N launchbox with stock exhaust?
20/65/140 is my suggestion.
h67
Anyone care to give a brief description of what XX/XX/XX represent in the carbs exactly and what bigger or smaller numbers mean?
Quote from: nightrider on March 13, 2007, 10:36:31 PM
Anyone care to give a brief description of what XX/XX/XX represent in the carbs exactly and what bigger or smaller numbers mean?
Check the FAQ or the Wiki, but in short:
'89-'00
pilot jet/main jet
'01+
pilot jet/mid-main jet/main jet
Bigger numbers = bigger holes = more fuel
Quote from: AlphaFire X5 on March 13, 2007, 03:37:31 PM
20/65/140 is my suggestion.
thx, I'll try it, if I find jets since sudco sells only fours :mad: now
A couple questions, I'm rejetting an 06
Is the mid main the same style jet as the mains? (I'm trying to find that part number as its not listed on the wiki, or anywhere else on the board I've seen)
Also, according to the wiki, for 01+ models, the main is N102.221. Is this correct, because the guy I talked to at Sudco told me it was the N100.604.
Then for the pilot, I have N224.103 (from the wiki) which the Sudco rep agreed with.
Hope those are clear questions.
[8
cool, thanks for the response. I'm planning on trying lunchbox, stock exhaust, 20/62.5/142.5.
do you by chance have any jets left from your purchase? I knew you had to buy 4, but I didn't realize it was 4 of each size.
im sure i asked this before but i never really got a good answer. I'm rejetting an 04 with pod filters and a bassani slip-on(flows better than stock) i was looking at doing 22.5/65/147.5. my bike now runs good even with the slipon and stock intake and stock jets but not much pull in 1st gear(but that is where the 15t comes in when ever i get it in the mail).
[8
[q8
Quote from: Wrecent_Wryder on April 19, 2007, 02:48:01 AM
Quote from: common sense on April 18, 2007, 05:04:51 PM
cool, thanks for the response. I'm planning on trying lunchbox, stock exhaust, 20/62.5/142.5.
do you by chance have any jets left from your purchase? I knew you had to buy 4, but I didn't realize it was 4 of each size.
When I bought mine they would still sell two of one size. I've got the 20/62.5/142.5 jets I ran for 4000 miles with the stock exhaust...
I'll take those of your hand if you're willing to part with em
[g6
Quote from: Wrecent_Wryder on April 19, 2007, 06:31:51 AM
Quote from: mach1 on April 18, 2007, 10:30:33 PM
im sure i asked this before but i never really got a good answer. I'm rejetting an 04 with pod filters and a bassani slip-on(flows better than stock) i was looking at doing 22.5/65/147.5. my bike now runs good even with the slipon and stock intake and stock jets but not much pull in 1st gear(but that is where the 15t comes in when ever i get it in the mail).
Sorry, I'm missing it. What was your question?
I'm rejetting an 04 with pod filters and a bassani slip-on(flows better than stock) i was looking at doing 22.5/65/147.5. my question was will this setup work?
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