fastestr1
Expert Class
Posts: 300
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posted December 12, 2002 09:38 PM
Gears
What is the best gears to run for the 1/4 mile. And is the angle of the chain have anything to do with the bike wheeling.
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Black 02, 8.99 @ 161.95 motor on NOS
Put one knee down for the curves and both knees down for GOD
  
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted December 12, 2002 10:47 PM
 Edited By: RAC4IT on 13 Dec 2002 09:53
Can't offer you a recommendation on the best gear, can only tell you what I use. Stock wheelbase 16/44, 60" wheelbase 17/46, 63" wheelbase 17/47. I tend to believe too much gear is a bad thing on a 12R.
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kcadby
Pro
Posts: 1733
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posted December 13, 2002 08:22 AM
Edited By: kcadby on 13 Dec 2002 08:23
Chain angle doesn't matter...
We are running 17/51 gearing on John's bike...he weighs over 210 and runs 9.40s on his 6"-over, stock motor...
I've run 9.0s on his bike with this set-up
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moonzx12
Expert Class
Posts: 153
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posted December 13, 2002 11:06 AM
kevin what were the number(60' ,330 1/8) ballpark on that 9.40 pass.
don't runn 1/4 mile much
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IslandRider
Parking Attendant
Posts: 15
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posted December 14, 2002 05:05 PM
Edited By: IslandRider on 20 Dec 2002 15:39
kcadby, you're saying chain angle doesn't matter. So the 17/51 gearing you're running has just as much chance of lifting the front wheel as say a 16/48 or an 18/54? I've heard the angle of the lifting arm between the front and back sprocket made a difference, but wasn't sure. Can you break it down a little bit for me?
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ZHooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted December 20, 2002 04:41 PM
I would point out that if you do run the 16 tooth countershaft sprocket, keep an eye on the chain and the swing arm wear pad. The small front countershaft sprockets tend to wear chains out faster and the chain runs on the pad a lot more and before you know it you are cutting the swing arm. Just some thoughts from a guy that has bought a couple of swing arms over the years!
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To those who do not count their life in years, but in how life
has touched them in the past and how much it can hold in the
future; -- Youth is forever.
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IslandRider
Parking Attendant
Posts: 15
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posted December 20, 2002 05:23 PM
Good point ZH....The drag guys out here also have a theory that the chain tends to jump teeth due to the small radius on a 16 when they hit the second stage NOS.
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ZHooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted December 20, 2002 05:35 PM
That would be a reasonable concern.
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justoyz2
Zone Head
Justoyz Racing
Posts: 858
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posted January 08, 2003 01:24 PM
you can her it, if the cain isn't tight enough.......my exp
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted January 08, 2003 01:27 PM
You have good ears...I couldnt hear a freight train over my exhaust :/
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Do not taunt happy fun ball!
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justoyz2
Zone Head
Justoyz Racing
Posts: 858
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posted January 08, 2003 01:52 PM
Edited By: justoyz2 on 9 Jan 2003 08:22
I have the video crew recording, when I study the video I can hear it, but launching I can hear it also. I have broken engine mounting bolts on the left side. The nuts snap off. This is duing lanuching. It's not easy getting low 1:50's 60 ft. You must twist the throttle and let the clutch GOOOOOOO
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kcadby
Pro
Posts: 1733
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posted January 08, 2003 03:05 PM
Edited By: kcadby on 8 Jan 2003 15:06
John gets 1.56ish 60 FT...don't remember the 330...6.20s @ 117+ 1/8
I ran ten...5.90s (including a 5.86) @ 122mph last time I ran at Jax on the bike 
That WAS on NUTEC fuel though 
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