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Old 01-04-2009, 08:48 AM   #1
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Default 8ight-t spur gear ?

I have bought a used 8ight-t and was going through it changing out fluids, and i noticed that it had a 50 tooth spur. I know that a 48 is stock with a 13 tooth clutch bell. So my question is what if any is the benefit of running the 50 tooth spur, and if thier is what clutch bell shoul i run?
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Old 01-04-2009, 09:01 AM   #2
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With a 50T spur you'll have more bottom end and little less top end
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Old 01-04-2009, 09:16 AM   #3
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13 bell would be fine but you can try a 14 tooth. The larger the spur gear the higher the torque but the top speed is slower. With a larger bell the top speed is higher but the low end torque is less. So it depends on what engine you are running and where its strong points are. What engine are you running?
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Old 01-04-2009, 09:16 AM   #4
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Simplified

If you are running on a small track with short run ups to jumps you need bottom end tourque so stay with the 13/50

If you are running on mid size track go with 13/50 or 13/48

If you are running a large open track go with 13/48 or 14/48

If you have a powerful motor on a large track try 14/47

I've tried and run on all the above with my 8T and it all depends on track surface, track size, Engine power output, and clutch setup.
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Old 01-04-2009, 09:55 AM   #5
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i,ll be running the grp .21 tuned
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Old 01-04-2009, 10:50 AM   #6
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Quote:
Originally Posted by jyfz2 View Post
i,ll be running the grp .21 tuned
i think the reason Adam uses the 50 tooth is because that Grp .21 has no bottom end and needs that extra help on the bottom, it will give u a nice bottom end punch and still have crazy top with that particular engine
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Old 01-04-2009, 01:40 PM   #7
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i run 14/47 on mine with a WS7III on all the tracks i race on, and i cant complain one bit.
ive had other drivers come up and ask what gearing i run and they cant understand why i get off the line so quick with shorter gearing than them
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Old 01-04-2009, 03:12 PM   #8
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hey tix what clutch set up are you using
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