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Old 01-07-2009, 01:28 PM   #1981
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Mudvayne,

Racing at 360 Speedway, I get my butt kicked by Donny Lia on a weekly basis. I think he was the first around here to run 1.89. He told me this past Sunday that he's running his Duo 17.5 at 0 on the endbell, max boost in the RS, and geared shorter. I couldn't pin him down on the exact rollout he's running, but I'm going to try it starting around 72mm and see how it looks.

I did run as high as 90mm rollout with 10 degree at the endbell and little or no boost, so I'm cutting way back on the gearing to avoid cooking the motor. I'll probably wind up a few teeth taller, but I'd rather sneak up on it and keep things cool...

This is 1/12 4 cell by the way.

I ran 189 last weekend in the same class. I was geared at 1.28 inches rollout (Not sure what that converts over into mm). Motor came off at about 140 degrees. I had 10 degrees in the can, and 12 in the boost, 17.5 trinity duo as well. So, if I take the can to 0, then that means more rpms, correct? Thus gearing down would make sense.
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Old 01-07-2009, 02:07 PM   #1982
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Tekin, if there any thought to (or does this exist and i haven't found it) of being able to save your settings in a file via HotWire? That way you can go back and forth easily between motors. I would also suggest adding a notes field to that so you can list what motor it was for and the gearing you used. Just think it might be helpful.

That ability is highest on the "additions" list for the hotwire functionality aswell as allowing for a simple text field.
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Old 01-07-2009, 02:09 PM   #1983
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That ability is highest on the "additions" list for the hotwire functionality aswell as allowing for a simple text field.
Great news! Thanks!
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Old 01-07-2009, 02:25 PM   #1984
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I ran 189 last weekend in the same class. I was geared at 1.28 inches rollout (Not sure what that converts over into mm). Motor came off at about 140 degrees. I had 10 degrees in the can, and 12 in the boost, 17.5 trinity duo as well. So, if I take the can to 0, then that means more rpms, correct? Thus gearing down would make sense.
If you take the can to 0 AND crank the boost up you'll get more RPM and want to gear down. From ten degrees in the can plus 12 boost, you're at 22, if you go to zero on the endbell, 22 boost should put you at or close to at where you were, higher than that, and you'll want to drop some teeth.

I think that 1.28" rollout has to be a typo, or a miscalculation... 1.28" is 32.5mm.
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Old 01-07-2009, 03:24 PM   #1985
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I ran 189 last weekend in the same class. I was geared at 1.28 inches rollout (Not sure what that converts over into mm). Motor came off at about 140 degrees. I had 10 degrees in the can, and 12 in the boost, 17.5 trinity duo as well. So, if I take the can to 0, then that means more rpms, correct? Thus gearing down would make sense.
Ken, Lower timing overall means LESS rpm. That said total timing is motor + ESC and it does seem that the motors prefer low or mid motor timing and the rest made up in the ESC.
Also knowing the track and the typical roll out, you were probably at 3.28 inches which sounds about right.
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Old 01-07-2009, 03:27 PM   #1986
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Thanks for the recommendations. I bought an Rs and Rs pro today. Hope to get them next week. Also hot the hotwire. Where you I get updates etc.
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Old 01-07-2009, 04:18 PM   #1987
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i just installed a RS in my 009 and I am looking to get the 189 software for it. I don't know if there are team drivers around nashville, TN to get the software from. Thanks for the help
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Old 01-07-2009, 05:54 PM   #1988
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i just installed a RS in my 009 and I am looking to get the 189 software for it. I don't know if there are team drivers around nashville, TN to get the software from. Thanks for the help
Chris Cooper is in that area and can hook you up
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Old 01-07-2009, 06:56 PM   #1989
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I dont think that I know him. can you pm me contact info? Thanks
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Old 01-07-2009, 08:03 PM   #1990
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Hi,
Does anyone have a ballpark figure for v189 settings for offroad 2wd with 17.5?
cheers.
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Old 01-07-2009, 08:17 PM   #1991
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Hi,
Does anyone have a ballpark figure for v189 settings for offroad 2wd with 17.5?
cheers.
5.2 fdr, 12 deg motor timing plus 15 boost
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Old 01-07-2009, 08:35 PM   #1992
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So now how does this boost work? Is it a constant degree increase or does it only apply under acceleration?
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Old 01-07-2009, 08:51 PM   #1993
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Boost is a constant add on to whatever timing is in the motor. Its sole purpose is to allow you to get 35 to 55 degrees of timing that high wind motors need to make max power.
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Old 01-07-2009, 09:54 PM   #1994
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so instead of adding timing why not just gear up. whats the difference?
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Old 01-08-2009, 12:13 AM   #1995
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i just installed a RS in my 009 and I am looking to get the 189 software for it. I don't know if there are team drivers around nashville, TN to get the software from. Thanks for the help
hi todb, care to post a pic of your electronics on the 009?

i'm waiting for my 009 as well... and i'm thorn between the rs pro and sc gt esc....

thanks!

g
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