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Old 07-19-2005, 07:33 AM   #2971
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Where would you guys gear a 10x2 on a tight track with 100 ft straight. only looking for ballpark est.
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Old 07-19-2005, 07:48 AM   #2972
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OR maybe you are running a very open and flowwing track liek Matt suggested....
But hear the tracks ar tight and small... so a 7.0 is most times the best starting point.
Hope this matter is finished....Thread is about the BD not our differences in opionion on gear ratios...
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Quote:
Originally Posted by Martin Hofer
The 27T Motor I'm using has about 165W and 27000 rpm.

I run a 96T 64pitch spur gear. And I even have a 52T Pinion

I guess, the tracks an motors here in germany are different to the americans.
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Old 07-19-2005, 08:50 AM   #2973
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Quote:
Originally Posted by jimnew
Finally got pics, hope everybody enjoys
Congrats. 2 of the best cars presently on the market.

Re gearing, last week I ran my car with a 23 turn motor. i ran 5.3 for 8 minutes and still had plenty of battery left with 3300s, so I guess that Matt's ratio of 5 to 1 would be fine, especially for 5 minutes.

Our club's control stock motor is a 21 turn, and they race 5 minutes. I know guys that run as low as 4.7 but there are also guys running 5.2 that are just as quick, even in a straight line. I personally never believed in over gearing.

My BD still gives me constant pleasure. I just cannot get over the fact that the car is always right, even with old tyres. It's nice to be able to go down to the track, put it on the track, and know it's going to go well.

I don't think I've ever had a car like that.
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Old 07-19-2005, 02:41 PM   #2974
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Quote:
Originally Posted by johnbull
Congrats. 2 of the best cars presently on the market.

My BD still gives me constant pleasure. I just cannot get over the fact that the car is always right, even with old tyres. It's nice to be able to go down to the track, put it on the track, and know it's going to go well.

I don't think I've ever had a car like that.
My sentiments EXACTLY...but then again, I have the RDX and that too puts a smile on my face when it's down on the track. Right now it's collecting dust until our new track opens up August 1st -JB
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Old 07-19-2005, 03:57 PM   #2975
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Hello fellow BD lovers..

I have broken a few pins in my driveshafts at the front. im running a spool and locked center pulley so i am pretty sure thats whats causing it. What parts should i get to replace?

dogbone?
outdrive?

part numbers would be appreciated.
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Old 07-19-2005, 04:33 PM   #2976
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http://www.speedtechrc.com/store/ebp...id=240&id=1235
these are the hardened front universals from the MR4TC but they fit the SD/BD with only slightly grinding down the end of the universals a couple of mm.
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Old 07-20-2005, 07:31 PM   #2977
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can anyone please tell me what size ballcups the BD uses?
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Old 07-20-2005, 07:56 PM   #2978
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Quote:
Originally Posted by smojoe
can anyone please tell me what size ballcups the BD uses?
The ballcups are a standard size so the ones from RPM, AE, or Losi, will work.
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Old 07-20-2005, 07:59 PM   #2979
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Quote:
Originally Posted by smojoe
can anyone please tell me what size ballcups the BD uses?
4.3mm ball cup size
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Old 07-20-2005, 08:41 PM   #2980
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You can also use HPI cups or studs...
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Old 07-20-2005, 09:41 PM   #2981
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.. and out of those brands, which ones are the ones with the least amount of slop and chance of coming off? (guessing the RPM ones)
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Old 07-20-2005, 09:44 PM   #2982
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Quote:
Originally Posted by smojoe
.. and out of those brands, which ones are the ones with the least amount of slop and chance of coming off? (guessing the RPM ones)
The Losi Whites are pretty slop free
-Dave
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Old 07-20-2005, 09:50 PM   #2983
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Quote:
Originally Posted by smojoe
.. and out of those brands, which ones are the ones with the least amount of slop and chance of coming off? (guessing the RPM ones)
actually the Yokomo swaybar ballcups are the tightest fit with the least amount of slop. I don't have the part # offhand, sorry
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Old 07-20-2005, 10:00 PM   #2984
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ZC-207A -JB
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Old 07-20-2005, 10:01 PM   #2985
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Quote:
Originally Posted by Matt Howard
actually the Yokomo swaybar ballcups are the tightest fit with the least amount of slop. I don't have the part # offhand, sorry
They are on back-order. Since they work with a lot of different cars, everyone's been buying them up to replace the stock cups. They do work great though. Using them lets me run the lower hole on the C-Hub without tire scrubbing the rim.
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