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tommy41  
#1 Posted : Thursday, April 21, 2016 9:40:38 AM(UTC)
tommy41

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Hello, my name is Tommy and I am currently running a 2003 GSXR 600 (stock) and I have my car set up with a 13 tooth sprocket and a 51 lower, running in 5th gear with a 9.13 1 ratio on a quarter mile track. I'm heading out to run a 1/3 mile track and was thinking of bringing the bottom sprocket down to 49 at a 8.77:1 ratio. I am just wondering if that is going to be too much gear? Or mainly wondering how much of a difference that ratio will make over the 9.13:1. Any help would be great because I'm bouncing back and forth between the 8.77:1 and going up to a 50tooth and a 8:95:1.
Mike Dicely  
#2 Posted : Thursday, April 21, 2016 11:40:15 AM(UTC)
Mike Dicely

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The drop in two teeth in the rear will equal about a 600 RPM change. Which is about another 40 feet on the straight at those speeds.

9.13:1 on a 1/4 mile track is pretty low. We run around a 12:50:1 So that is a big change. I assume you are running a 69" right rear tire?

Here is a link to our Gearome Project which has a lot of recommended gear ratios for different tracks.
JefferyFord  
#3 Posted : Thursday, July 20, 2017 5:37:29 AM(UTC)
JefferyFord

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Here I would like to share what I got from web, that is The ratio is the number of teeth on the driven gear (ring) divided by the number of teeth on the drive gear (pinion). So, if the ring gear has 37 teeth and the pinion has 9 teeth, the ratio is 4.11:1. That also means that for every one turn of the ring gear, the pinion will turn 4.11 times.

BY,

Jeffery Ford
Website: Reviews of essay writing service

Edited by user Thursday, July 20, 2017 11:12:13 PM(UTC)  | Reason: Not specified

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