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Old 07-22-2004, 11:51 AM   #1
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Default Gearing for an Evo IV

I just got a Tamiya TB Evo IV with a GT7 esc, matched Fusion GP3300 cells and an Orion Revolution V2 12x1 motor. I was wondering if anyone has used the V2's and what they think of them and also if they can offer some gearing advise.

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Old 07-22-2004, 02:45 PM   #2
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5.7 to 6.0 should work with a V2 12x1.
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Old 07-22-2004, 07:19 PM   #3
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You should start gearing at about 7.8 to 1 ratio and adjust from there based on your track size. A ratio of 6 or less would most probably fry your motor.
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Old 07-23-2004, 05:13 AM   #4
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Quote:
Originally posted by Holmenkollen
5.7 to 6.0 should work with a V2 12x1.
that would kill the motor in no time.
id recommend starting at about 7. something to start with.
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Old 07-23-2004, 05:18 AM   #5
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Depends on the track. If it is a huge track that sort of gearing would work. I've run an 8x1 V2 at 4.5 on an oval track and the motor looked fine after a 4 min run.
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Old 07-23-2004, 05:20 AM   #6
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Use about 2 teeth less on your pinion than with a normal 12x2. Gearing really depends on the track. Example : this week end at the BRCA nats, I can predict most people will go for a gearing about 6.2 on the V2's, because the halifax track has a 200m straight.
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Old 07-23-2004, 05:27 AM   #7
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I drive on a large track, 19 s laps, so my recommendation was based on that. And the motor holds up great with that ratio, 10-15 runs before you have to do anything with it.
Of course, a smaller track needs a differant ratio.
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Old 07-23-2004, 09:26 AM   #8
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At the Tamiya track or a track similar to the Nats track in Portland, I would start gearing a 12x1 somewhere between 7.1-7.5
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Old 11-09-2005, 11:07 AM   #9
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Default stock gearing

what would you guys suggest for an evo 4 running a silver can in stock? I bought the 72t tamiya spur looking to run a 45 tooth pinion with it but there isnt enough adjustment in the motor mount to reach the spur, 72, 45 works really well on the evo 3, obviously not on the 4

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