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Old 10-04-2006 | 07:14 PM
  #21046  
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Originally Posted by xtrememadness
thanks jason. the new bmi 12 looks sweet. just want to try a link car and see what the handling characteristics are over a t-plate car.

thanks buddy.the new car has been working extremely well for us. im sure you will find the link cars to work great as well.i am sure i will try one someday.i just like the feel of the T plate.everyone has there preferances.if i was to run a link it would definately be a SM.i like the layout and it looks clean.
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Old 10-04-2006 | 08:22 PM
  #21047  
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question guys,

what spur gear do you guys use 92,96, or 100 tooth. i'm trying to gear for stock but for some reason i use the 100 tooth w/ 35 pinion and it's tight. any suggestion.
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Old 10-04-2006 | 08:54 PM
  #21048  
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Darn double post...
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Old 10-04-2006 | 08:55 PM
  #21049  
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Originally Posted by tony q
question guys,

what spur gear do you guys use 92,96, or 100 tooth. i'm trying to gear for stock but for some reason i use the 100 tooth w/ 35 pinion and it's tight. any suggestion.
Dude...

You're either running oval or you're running the smallest possible rear tires (like low 40's mm). Or both. Even if you don't dump, how hot is your motor after a heat?

What is your tire diameter and/or roll-out? Just gear ratios don't tell us much.

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Old 10-04-2006 | 09:05 PM
  #21050  
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Tony ,

I am running a 96 spur and a 29 pinion in 19t. Your pinion is way too big.
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Old 10-04-2006 | 09:20 PM
  #21051  
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Originally Posted by lbckevin
Tony ,

I am running a 96 spur and a 29 pinion in 19t. Your pinion is way too big.
thanks, can you use any 96 spur brand or it has to be kimbrough?
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Old 10-04-2006 | 09:29 PM
  #21052  
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I ran 96/32 w/ Co27 red springs, f-brushes and 44.5mm rear tires last sunday.
Qualed 3rd and finished first, motor came off at 132F.
Track is 80x30 and had a flowing layout.

Motor ran strong all 8 minutes with zero fade.

So buy what you guys are saying, my motor should be toast?
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Old 10-04-2006 | 09:35 PM
  #21053  
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the track tony and I are running on is small and you need the acceleration more than the top speed. Tony, I am running the Kimbrough spur.
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Old 10-04-2006 | 09:37 PM
  #21054  
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Originally Posted by lbckevin
the track tony and I are running on is small and you need the acceleration more than the top speed. Tony, I am running the Kimbrough spur.

ok, sorry.
I thought 80x30 was a small track.

later
Dayton
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Old 10-04-2006 | 09:42 PM
  #21055  
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Bending corners is 60 x 40
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Old 10-04-2006 | 10:47 PM
  #21056  
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Originally Posted by 1armed1
I ran 96/32 w/ Co27 red springs, f-brushes and 44.5mm rear tires last sunday.
Qualed 3rd and finished first, motor came off at 132F.
Track is 80x30 and had a flowing layout.

Motor ran strong all 8 minutes with zero fade.

So buy what you guys are saying, my motor should be toast?

96/32 is a fair bit different than the 100/35 Tony was describing. Or did you miss that on your way to making a point? You describe a 46.5mm roll-out. If you were to use his gear combo with your tires it would be right about 49mm. And that's assuming he's running tires in that ballpark.

That said, I'm surprised you're coming off at the temperature you're reporting, but you're the guy there. I'd wager your track is a good bit more "flowing" than our tracks tend to be, because I guarantee you'd be a fair bit hotter if you ran on our track.

I run closer to a 44mm roll-out and get temps about 30-40 degrees hotter than what you're experiencing.

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Old 10-04-2006 | 11:06 PM
  #21057  
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Scottrik,
I guess you missed my second post?

I saw his gearing before my post, my quick roll out calculation was off but not by much.
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Old 10-05-2006 | 01:09 AM
  #21058  
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Default need help on 1/12 gear ratio for brushless system

I just got a GTB 5.5R setup for my 1/12, but am wondering what kind of gear ratio i should set for the brushless system.
i am currently using 100t 65p gear, so maybe 25t pinion?
thanks
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Old 10-05-2006 | 03:19 AM
  #21059  
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Originally Posted by Scottrik
96/32 is a fair bit different than the 100/35 Tony was describing. Or did you miss that on your way to making a point? You describe a 46.5mm roll-out. If you were to use his gear combo with your tires it would be right about 49mm. And that's assuming he's running tires in that ballpark.

That said, I'm surprised you're coming off at the temperature you're reporting, but you're the guy there. I'd wager your track is a good bit more "flowing" than our tracks tend to be, because I guarantee you'd be a fair bit hotter if you ran on our track.

I run closer to a 44mm roll-out and get temps about 30-40 degrees hotter than what you're experiencing.

Scottrik
i am sure track size and how flowing it is has alot to do with it.in 19 turn on a pretty flowing track i run a 49.5mm rollout and am hard to beat.i see exactly why you run the gearing you do with a small track.i had to drop to 46 mm for a large carpet track and even lower for a tighter one.gearing is fun huh.
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Old 10-05-2006 | 03:23 AM
  #21060  
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Since we are talking about rollouts. What should I run on a 9 double?
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