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Old 11-22-2009, 03:31 PM   #1
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Default TB03 pinion and spur?

What type pinions does the TB03 use with the stock spur? Is there a better way with the car to use standard pinions and spurs? I need a 26-28 tooth pinion but am not sure what it uses.
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Old 11-23-2009, 11:44 AM   #2
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Any help would be greatly appreciated. Thanks.
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Old 11-23-2009, 11:48 AM   #3
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The stock Tamiya spur gear is a .6 module but I would recommend swaping that out and going to a PRS/Robinsons/RW spurs. If you are planning on running a brushless setup with the TB-03 the best thing to do is to get a 64p 75-78t spur gear and appropriate pinion.
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Old 11-23-2009, 11:57 AM   #4
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Thank you. I am newbie to onroad, this is my first. I am running a mmpro with an LRP 4.5T motor, and thunder power 40c 5000 2s lipos. Is this the spur needed and what number pinion should I run with this setup to stay nice and cool? Is the spur a direct bolt on?
http://www.amainhobbies.com/product_...-Spur-Gear-78T

Or would this be a better choice? Looks to have the 4 holes for mounting as opposed to two.
http://www.amainhobbies.com/product_...-Spur-Gear-76T
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Old 11-23-2009, 12:12 PM   #5
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Quote:
Originally Posted by bigbeej View Post
Thank you. I am newbie to onroad, this is my first. I am running a mmpro with an LRP 4.5T motor, and thunder power 40c 5000 2s lipos. Is this the spur needed and what number pinion should I run with this setup to stay nice and cool? Is the spur a direct bolt on?
http://www.amainhobbies.com/product_...-Spur-Gear-78T

Or would this be a better choice? Looks to have the 4 holes for mounting as opposed to two.
http://www.amainhobbies.com/product_...-Spur-Gear-76T
The PRS ones seems to strip less than the Robinson but I like the white material since it's easier to see the gear mesh. Are you planning to race this? 4.5 seems to be an overkill and will probaly need to upgrade a few peices otherwise you're tear up the drive train (the aluminium spur gear holder immediately comes to mind). Out of the box the TB-03 is a good club racer for 17.5 and 13.5 without too many upgrades. For most tracks a good FDR in 17.5 is 4-5 so gear appropriately.
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Old 11-23-2009, 12:20 PM   #6
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No racing, just culdasac bashing. I have already upgraded to aluminum diff jointa all the way around, aluminum spur mount, aluminum shaft, propellor joints, etc..thanks to Timmie's advice. I knew I was going to run brushless and built it that way. Just confused on what spur/pinion combo to use for this setup to run nice and cool in the 55mph range. Thanks again for the help...
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Old 11-24-2009, 09:45 AM   #7
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Hi swimbikerun,
is it possible to reduce the idr to a lower ones?

tnks
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Old 11-24-2009, 09:55 AM   #8
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Hi swimbikerun,
is it possible to reduce the idr to a lower ones?

tnks
Max
You could but that would involve finding bevel gears with lesser teeth that would also fit in the car. The question is why since you are able to get down to a FDR of 3.44 with a 75 spur and 53 pinion which fits the car as I recall.
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