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Author Topic: Gearing on gen 2 Busa  (Read 26383 times)

Offline rider44

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Gearing on gen 2 Busa
« on: July 31, 2011, 06:16:44 PM »
What is the stock tooth count on the rear and front sprocket of the gen 2 Busa?
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Offline Husky

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Re: Gearing on gen 2 Busa
« Reply #1 on: July 31, 2011, 06:22:12 PM »
18/43
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Offline rider44

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Re: Gearing on gen 2 Busa
« Reply #2 on: July 31, 2011, 06:26:37 PM »
Thanks. Im looking at a kit online that has 46 rear and 18 front with .140 gold chain and rear extensions. What will this do for my bike?
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Offline rider44

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Re: Gearing on gen 2 Busa
« Reply #3 on: July 31, 2011, 06:28:51 PM »
What would be best to change over to that will boost my pull but still allow me to hit 185?
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Offline Husky

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Re: Gearing on gen 2 Busa
« Reply #4 on: August 01, 2011, 06:33:49 PM »
Well I'm not sure what the best setup is as there are way too many variables.  For me I run 16/43 from the stock 18/43 and since I weigh around 235 suited up this helps me get out of the hole better and I am getting around 142mph at the end of the quarter mile.
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Offline rider44

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Re: Gearing on gen 2 Busa
« Reply #5 on: August 01, 2011, 07:52:37 PM »
What do u think going from the stock 43 on rear to 46 will do?
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Offline Husky

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Re: Gearing on gen 2 Busa
« Reply #6 on: August 01, 2011, 08:58:55 PM »
Going up 3 on rear is about the same as going -1 on the front.  You will be able to get out of the hole quicker and should be able to improve 60' time.  If this is a stock wheel base bike you may want to expirement with the launching rpm as the bike will wheelie alot easier
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Offline rider44

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Re: Gearing on gen 2 Busa
« Reply #7 on: August 01, 2011, 09:01:15 PM »
Ok thanks. i am going to extend the rear by a few inches .
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Offline Got-Busa?

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Re: Gearing on gen 2 Busa
« Reply #8 on: August 02, 2011, 11:11:56 AM »
If you are going Turbo, I wouldn't change the gearing just yet...
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Offline TurboGen2

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Re: Gearing on gen 2 Busa
« Reply #9 on: August 03, 2011, 05:53:21 PM »
if turbo i would go with a 19 front and a 45-48 rear. dont want to snap your stock output shaft!  :thumb:
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #10 on: September 01, 2011, 12:59:54 PM »
On my Gen 1 with the Ultra Kit we ran a 19/39.  The stock gearing on my Gen II feels very tall.  I have been contemplating 1 more tooth in the rear.  I seldom use 5th and almost never use 6th.  I mean 4th gear is easily good for about 145 or so.  It just feels tall to me. 
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Offline tru-rida03

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Re: Gearing on gen 2 Busa
« Reply #11 on: September 01, 2011, 09:07:25 PM »
17-45 here love it
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #12 on: September 02, 2011, 06:18:30 PM »
Quote from: tru-rida03 on September 01, 2011, 09:07:25 PM
17-45 here love it

Would that not be the same as dropping one tooth in the rear?
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #13 on: September 03, 2011, 06:13:39 PM »
That's it...........I am dumping this 43 and goin' with a 45.   I bought a 6 gear bike and I wanna use 'em all.  These Gen IIs are geared too tall, IMO.  
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Offline FlatlandBusa

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Re: Gearing on gen 2 Busa
« Reply #14 on: September 03, 2011, 06:19:12 PM »
Quote from: DaveH1948 on September 03, 2011, 06:13:39 PM
That's it...........I am dumping this 43 and goin' with a 45.   I bought a 6 gear bike and I wanna use 'em all.  These Gen IIs are geared too tall, IMO.  

If I remember correctly, GEN2's are geared shorter than GEN1's
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #15 on: September 03, 2011, 07:42:21 PM »
Quote from: FlatlandBusa on September 03, 2011, 06:19:12 PM
Quote from: DaveH1948 on September 03, 2011, 06:13:39 PM
That's it...........I am dumping this 43 and goin' with a 45.   I bought a 6 gear bike and I wanna use 'em all.  These Gen IIs are geared too tall, IMO.  

If I remember correctly, GEN2's are geared shorter than GEN1's

How can that be when I can pull and indicated 150 in 4th and 177 in 5th?...........that makes 6th useless, IMO.
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Offline FlatlandBusa

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Re: Gearing on gen 2 Busa
« Reply #16 on: September 03, 2011, 09:33:49 PM »
Quote from: DaveH1948 on September 03, 2011, 07:42:21 PM
Quote from: FlatlandBusa on September 03, 2011, 06:19:12 PM
Quote from: DaveH1948 on September 03, 2011, 06:13:39 PM
That's it...........I am dumping this 43 and goin' with a 45.   I bought a 6 gear bike and I wanna use 'em all.  These Gen IIs are geared too tall, IMO.  

If I remember correctly, GEN2's are geared shorter than GEN1's

How can that be when I can pull and indicated 150 in 4th and 177 in 5th?...........that makes 6th useless, IMO.

At those speeds the speedometer reads about 10% high compared to real speed on a GPS.
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #17 on: September 04, 2011, 10:50:06 AM »
It's a friggin' conspiricy.  I give up.   :hys:
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Offline Got-Busa?

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Re: Gearing on gen 2 Busa
« Reply #18 on: September 07, 2011, 11:40:45 AM »
Yep...Gen-II's are a hair shorter... ;)
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #19 on: September 07, 2011, 03:47:15 PM »
I just ordered a new rear sprocket with two more teeth.  Should be here Friday.  I can hardly wait.  I wanna 3rd gear power wheelie....................yeeeeeeee haaaaaaaaaaa!!!!!   :tu: :hys:
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Offline gjp1300

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Re: Gearing on gen 2 Busa
« Reply #20 on: September 09, 2011, 06:53:58 AM »
I have a Vortex Gold 45 tooth sprocket for sale,200 miles on it,after tying it I liked stock gearing best so I switched back if anyone is interested.
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Offline moregpz

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Re: Gearing on gen 2 Busa
« Reply #21 on: September 09, 2011, 08:28:23 AM »
I just put a 42t on the rear of my 08. Same performance and really smoothed it out at 80 mph. :tu:
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #22 on: September 09, 2011, 06:35:11 PM »
I just put a 45 on my 09 and I am loving it................the transmission if far more "user friendly" now.  5th and 6th are now gears I can use.  Two teeth up and did not have to break the chain.

I can now say without any doubt that there is not a single 1967 stock VW Beetle that can touch me.   :hys: :hys: :hys: :bike: :tu:
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #23 on: September 10, 2011, 03:39:53 PM »
If any of you guys have a stock Gen II............put a 45 on the rear and dump the 43  :bike: :tu: you will have more fun and turn better times at the track if ya race.  It is perfect for that bike.  Stock is too tall.  IMO.
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Offline Nolimitracing

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Re: Gearing on gen 2 Busa
« Reply #24 on: September 15, 2011, 01:02:03 PM »
Quote from: DaveH1948 on September 10, 2011, 03:39:53 PM
If any of you guys have a stock Gen II............put a 45 on the rear and dump the 43  :bike: :tu: you will have more fun and turn better times at the track if ya race.  It is perfect for that bike.  Stock is too tall.  IMO.

What do you have on the front sprocket?
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #25 on: September 15, 2011, 01:43:34 PM »
Quote from: Nolimitracing on September 15, 2011, 01:02:03 PM
Quote from: DaveH1948 on September 10, 2011, 03:39:53 PM
If any of you guys have a stock Gen II............put a 45 on the rear and dump the 43  :bike: :tu: you will have more fun and turn better times at the track if ya race.  It is perfect for that bike.  Stock is too tall.  IMO.

What do you have on the front sprocket?

Stock - 18  The additional two teeth on the rear change the ratio from 2.34 to 1 to 2.5 to 1............try it, spin that tach, eat up that road!!!   :thumb: :thumb:
« Last Edit: September 15, 2011, 01:45:49 PM by DaveH1948 »
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Offline Nolimitracing

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Re: Gearing on gen 2 Busa
« Reply #26 on: September 15, 2011, 03:20:29 PM »
Quote from: DaveH1948 on September 15, 2011, 01:43:34 PM
Quote from: Nolimitracing on September 15, 2011, 01:02:03 PM
Quote from: DaveH1948 on September 10, 2011, 03:39:53 PM
If any of you guys have a stock Gen II............put a 45 on the rear and dump the 43  :bike: :tu: you will have more fun and turn better times at the track if ya race.  It is perfect for that bike.  Stock is too tall.  IMO.

What do you have on the front sprocket?

Stock - 18  The additional two teeth on the rear change the ratio from 2.34 to 1 to 2.5 to 1............try it, spin that tach, eat up that road!!!   :thumb: :thumb:

The reason I asked is because I went with 17/45 but I haven't had a chance to try it out. I do alot of racing.
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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #27 on: September 16, 2011, 04:32:29 PM »
You are already running a 2.65 gear ratio......you are lower than me because 1 tooth in the front is like 3+ teeth in the back.  Your bike must fly.   :thumb:
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Offline tru-rida03

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Re: Gearing on gen 2 Busa
« Reply #28 on: September 17, 2011, 07:37:43 PM »
im running 17-45.....i love it!(09)
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Offline Red

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Re: Gearing on gen 2 Busa
« Reply #29 on: September 17, 2011, 07:56:35 PM »
Send your stock 18 to me . . .

P. O. Box 86

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Offline Ghost-Geezer

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Re: Gearing on gen 2 Busa
« Reply #30 on: September 19, 2011, 05:31:53 PM »
Quote from: tru-rida03 on September 17, 2011, 07:37:43 PM
im running 17-45.....i love it!(09)

2.65 to one ratio......................very quick but top end might be a little lower.  But who cares? You can go from zero to 150 deep into the 9's in the quarter.

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Offline fastone

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Re: Gearing on gen 2 Busa
« Reply #31 on: October 17, 2011, 06:13:41 PM »
45 on mines and it works great for street riding thanks guys
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Offline tru-rida03

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Re: Gearing on gen 2 Busa
« Reply #32 on: October 18, 2011, 09:41:16 PM »
swapped my 17 front sprocket back to stock...45 on te rear..I LIKE :tu:
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Offline BlackJackel

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Re: Gearing on gen 2 Busa
« Reply #33 on: October 18, 2011, 10:02:07 PM »
I'm at 16/43 (stock rear, -2 front). 
I had run about 4000 miles since new on a -1 front and it made a big difference and is well worth it.  It was a bit of a wheelie monster in lower gears though (all stock powerwise). 
I lowered and stretched it (8" extension) when I put in the 16tooth and it never wheelies now.

I would do a -1 front or +3 rear, but not anything more without a stretch, if you want to use the power well.   Also, definitely don't do more than my gearing.  I'm pretty buzzy/high rpm for street use and still spin the tire at the track in first.

For what its worth...   :bike:
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Offline shorttrack

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Re: Gearing on gen 2 Busa
« Reply #34 on: October 20, 2011, 12:25:50 AM »
was 18 f -45 r ran  9.02 in the1\4 at 148 mph -  5.80's at 120 mph in the 1\8   with a 6 inch stretch on a shinko 003 u-soft at 20psi- - - changed the combo to 10-12 stretch ,shinko hook-up at 12 psi -17 f- 46 r .runs 1\10 faster 60 ft 5.70's in the 1\8.with a better rider it would run better.it is a stock motor mapped for true pump gas and i still ride on the streets when i have the time.also changed from a ti-m-4 full exh system to a sidewinder.hope to run more 1\4 track next year time permitting .
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