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Old 04-29-2008, 07:51 AM   #4696
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9602 or 9650 Futaba.
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Old 04-29-2008, 08:19 AM   #4697
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Quote:
Originally Posted by punkboy View Post
InspGadgt: I searched for the Strawberry punch syrup you mentioned last week. I was only able to find Fruit punch syrup or Strawberry Snow-Cone syrup. May I ask where you go to find Strawberry punch syrup, or if it would even matter whether the syrup be strawberry punch or fruit punch?

Thanks for your help.
mm, you guys must have the tastiest tires over there in Hawaii.
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Old 04-29-2008, 09:10 AM   #4698
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hey guys, what servos fit in this car, im getting in to 12th scale(im mainly a touring car guy)
josh
The Futaba 9602,9650 and a KO949 are my 1st 3 choices.
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Old 04-29-2008, 01:05 PM   #4699
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We run ~70mm roll out with an SP GT and 10.5 in a DB12R on tracks that size. Use all the default GT settings.
Hey AdrianM, I downloaded the excel spread sheet but it is password protected ( I want to add about 15 bigger pinions )....

What's the password?
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Old 04-29-2008, 02:10 PM   #4700
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its the same as his luggage.. "ONE TWO THREE FOUR.. FIVE"
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Old 04-29-2008, 02:12 PM   #4701
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its the same as his luggage.. "ONE TWO THREE FOUR.. FIVE"
Yeah well at least he's not a Mog!

LOL
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Old 04-29-2008, 02:51 PM   #4702
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Originally Posted by Nova F1 Racer View Post
Hey AdrianM, I downloaded the excel spread sheet but it is password protected ( I want to add about 15 bigger pinions )....

What's the password?
Opened it in Open Office on Linux and I could edit it.
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Old 04-29-2008, 04:53 PM   #4703
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is someone willing to explain the excel spreadsheet on rollout? no need for a huge technical explanation, but just a sentence about what is rollout, and what each row and column are in the spreadsheet. I know one of the is pinion and gear? but which ones are which. Thanks.
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Old 04-29-2008, 05:06 PM   #4704
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For a given spur size, the left hand column is pinion size, the top row is tire diameter, and the rest of the data is the rollout.

See this post for an editable rollout Excel spreadsheet
BMI's DB12R

So, after entering your spur size, measure your tire diameter, go down that column until you find your desired rollout, and the go across to find the pinion you should use. The top chart is rollouts in mm, the bottom is rollouts in inches. Both tables have the tire diameter listed in mm and inches, so it doesn't matter what units someone else gives you the rollout in, you can easily find it.

Ask others at your local track what rollouts they are using, and you can gear your car the same regardless of your spur tooth count and tire size. All motors have an optimum rollout for a given track. Rollout, by definition, is the distance the car will travel for one revolution of the motor shaft. It takes into account the gear ratio (pinion / spur) and the tire diameter. As your tires wear, to maintain the same rollout, you should change the pinion.

Too low of a rollout, the motor will run cooler, but not be as fast on top end, but may accelerate faster. Too high of a rollout, the motor will run hot, top speed will be higher, but probably won't have as much punch in the infield.
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Last edited by CarbonJoe; 04-29-2008 at 05:28 PM.
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Old 04-30-2008, 05:39 PM   #4705
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awesome! thanks for the great info. Ill type in the titles, and ill be set, thanks.
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Old 05-01-2008, 06:14 PM   #4706
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I'm hoping to run my DB12R outdoors on low/medium grip asphalt (sealed, treated with grape soda) in a few weeks. I've only run the car indoors on carpet to this point. Should I start with the kit setup and double-pinks all around, or start somewhere else? Are the progressive springs a big improvement outdoors? What size progressive spring would you start with?

Are the kit kingpins the best thing to run with the progressive springs, or is there some longer kingpin that is better?

I see a lot of setups now expressed in terms of Sure Lube numbers (1, 2, 3, etc.) What's the translation to diff lube weights (5K, 10K, etc.)?

Thanks for helping,

--mark
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Old 05-01-2008, 06:23 PM   #4707
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Quote:
Originally Posted by CarbonJoe View Post
...

See this post for an editable rollout Excel spreadsheet
BMI's DB12R

...
Sounds like a useful spreadsheet! I tried opening the zip file using the zip reader that's built into Vista and the system says that the zip file is corrupt. Is there some other program I can use on Vista that can decode this zip file?
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Old 05-01-2008, 06:26 PM   #4708
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Hey mark,

The kit setup is a great starting point for asphalt. Start with that and you can fine tune it. Most guys seem to like that setup for asphalt.

The new front springs are a big improvement on any surface. They allow the front end to work more efficient. I like the .020 springs on asphalt. You can run these springs with the long kingpins or the ones you have. If you use your short kingpins, you will just need to remove 2 shims from the kingpin.
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Old 05-02-2008, 01:13 AM   #4709
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...

You can run these springs with the long kingpins or the ones you have. ...
If you wanted to run long kingpins, where would you get them? Do you run 1/10th king pins in a 1/12th car? You mention a long IRS king pin -- what's the part number for that? Thanks!
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Old 05-02-2008, 06:09 AM   #4710
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The long kingpins part # is DB2170. You can use the long or short kingpins with the new springs. The longer kingpins will offer more roll center adjustment.
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