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Author Topic: Gearing  (Read 6727 times)

Offline 003busa

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Gearing
« on: January 06, 2008, 08:58:17 AM »
Do you guys think 18/46 will be able to finish in the 1/4 w/out hitting the limmiter???
The bike has an rcc ultra kit on it..
On the street what kind of mph is 18/46 good for??


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Offline SPARKY1397R

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Re: Gearing
« Reply #1 on: January 06, 2008, 03:12:38 PM »
what size rear tire?  how much HP will you be running?
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Offline TrickTom1

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Re: Gearing
« Reply #2 on: January 06, 2008, 05:36:25 PM »
sho is pretty :thumb: I think gear will be good
« Last Edit: January 07, 2008, 04:54:56 PM by TrickTom1 »
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Offline 003busa

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Re: Gearing
« Reply #3 on: January 06, 2008, 07:24:20 PM »
The bike should be putting around 500+ rwhp and i am running a shinko u soft 190
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Offline E-RACER

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Re: Gearing
« Reply #4 on: January 07, 2008, 03:54:46 PM »
Your going to have to try it and see..its a trail and error type thing if You ask Me..also depends on how good the 60ft is as to what rpm across the finish lind would be..

pretty bike!!!!!!!............................is that all chrome??? 8)
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Offline Nem

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Re: Gearing
« Reply #5 on: January 07, 2008, 06:27:33 PM »
I ran 18/46 on my ultra this passed season.

Best of 8.08@184
 :thumb:
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Offline 003busa

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Re: Gearing
« Reply #6 on: January 07, 2008, 06:37:37 PM »
Awsome #'s NEM!!!
How much boost are you launching w/?
Do you use a 2 step??
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Offline Nem

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Re: Gearing
« Reply #7 on: January 07, 2008, 06:48:07 PM »
Quote from: 003busa on January 07, 2008, 06:37:37 PM
Awsome #'s NEM!!!
How much boost are you launching w/?
Do you use a 2 step??

Thanks!

Had 10# spring on the gate building about 6# on the line and running a BoostbySmith controller.

No 2 step......  :thumb:
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Offline 003busa

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Re: Gearing
« Reply #8 on: January 07, 2008, 07:45:39 PM »
THANKS NEM!!! :thumb:
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Offline 1vapors

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Re: Gearing
« Reply #9 on: January 09, 2008, 11:40:27 AM »
Nice is all I can say.
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Offline Scary-Jerry

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Re: Gearing
« Reply #10 on: January 09, 2008, 12:10:09 PM »
I'm going with 19 - 48.
The goal is go as big as possible...   :wink:
The larger the rear sprocket, the more downward force is applied at launch (reduces wheel spin) and subsequently throughout the run.
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Offline Nem

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Re: Gearing
« Reply #11 on: January 09, 2008, 12:20:51 PM »
Quote from: Scary-Jerry on January 09, 2008, 12:10:09 PM
I'm going with 19 - 48.
The goal is go as big as possible...   :wink:
The larger the rear sprocket, the more downward force is applied at launch (reduces wheel spin) and subsequently throughout the run.

That's what I'm going with this season.
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Offline TrickTom1

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Re: Gearing
« Reply #12 on: January 09, 2008, 12:38:02 PM »
Fast guy down here was running 19/52 last time I saw it. Went a 7.49 first time out a while back.
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Offline Mike-Nightrider

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Re: Gearing
« Reply #13 on: January 09, 2008, 12:53:24 PM »
maybe a stupid question.
Does a 19 teeth sprocket fit without modification?
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Offline Nem

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Re: Gearing
« Reply #14 on: January 09, 2008, 01:02:29 PM »
Quote from: TrickTom1 on January 09, 2008, 12:38:02 PM
Fast guy down here was running 19/52 last time I saw it. Went a 7.49 first time out a while back.

I was thinking of going even to a 49, but 52...... holy shit!
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Offline Scary-Jerry

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Re: Gearing
« Reply #15 on: January 09, 2008, 03:11:54 PM »
Quote from: Mike-Nightrider on January 09, 2008, 12:53:24 PM
maybe a stupid question.
Does a 19 teeth sprocket fit without modification?
I use a Billet Spocket Cover that is also a case Saver and Slave Support.  The early ones that were made would not clear slightly... 
The later ones would clear a 19 no problem and there are some that clear 20 tooth.
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Offline Mike-Nightrider

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Re: Gearing
« Reply #16 on: January 09, 2008, 03:26:17 PM »
Oh, that's fine.
I've bought a Slave Support from Canadian Mike.
I' will get it at Friday.
19/48 is a good choice.
It is between 18/45 and 18/46.
« Last Edit: January 26, 2008, 05:16:44 PM by Mike-Nightrider »
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Offline TrickTom1

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Re: Gearing
« Reply #17 on: January 09, 2008, 05:41:32 PM »
Quote from: Nem on January 09, 2008, 01:02:29 PM
Quote from: TrickTom1 on January 09, 2008, 12:38:02 PM
Fast guy down here was running 19/52 last time I saw it. Went a 7.49 first time out a while back.

I was thinking of going even to a 49, but 52...... holy shit!
Overdrive gears in da tranny :thumb:
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Offline Nem

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Re: Gearing
« Reply #18 on: January 09, 2008, 05:47:24 PM »
Makes sense now......  :D
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Offline plat03busa

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Re: Gearing
« Reply #19 on: January 12, 2008, 08:01:01 PM »
with that much gear, how are the wheelies?
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Offline Scary-Jerry

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Re: Gearing
« Reply #20 on: January 13, 2008, 05:36:00 AM »
Use ballast and/or go longer...
With 18/42 gearing & 350 HP on just a second stage of boost, I was lifting the front wheel at 150 mph and carrying it through the Traps at 172 mph.
That was at 5" over...  I'm doing everything I can to get it to settle down now!  :wink:
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Offline 003busa

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Re: Gearing
« Reply #21 on: January 13, 2008, 07:01:42 AM »
That is a great mph for that power.. I was only doing 165 mph at 330 rwhp, Wonder if the gear has anything to do w/ it??
Are you guys that are making a lot of power w/ the ultras taking  out any timing?? If so what are you using??  I am air water intercooled..
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