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Old 03-27-2009, 05:15 PM   #1
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Default 8th Brushless Setup advice wanted!

Hi Guys,

Just thought I would ask for a few hints and tips for setting up my 8th Brushless system.
I have just installed a CC Mamba Monster (V3) with a NEU 2650kv motor into my RC8 with the AE conversion kit.
I guess 1st off I would like to know what gearing to use. The AE kit comes with a 50/46 spur and 15/16 pinion. I have also a standard 44 spur if required?
Secondly the ESC setups using the CC link.
3rd the best options for Lipo's.
I need to run the car for 5 minute qualys then possibly 10 minute mains.
Thanks
Rob.
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Old 03-28-2009, 11:04 AM   #2
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Pointless forum judging by the lack of response.

I will stick to UK support.
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Old 03-28-2009, 11:35 AM   #3
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There is a 500 plus page thread with a wealth of information.I know its alot to sift thru it is the best way to second hand get to know all about 1/8th e stuff.Just pick some pages and learn.Cheers!
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Old 03-28-2009, 11:56 AM   #4
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Gearing will depend on your track and yor driving style. Thats not something that can be resolved for you over the web. But common sense would ttell me to start with the smaller gearing, check the temps and then step up from there if possible.


Quote:
Secondly the ESC setups using the CC link.
3rd the best options for Lipo's.
What does this meen? If you want people to help you you should really try and make sense of your questions.
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Old 03-28-2009, 01:02 PM   #5
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Quote:
Originally Posted by rob8246 View Post
Pointless forum judging by the lack of response.

I will stick to UK support.
Just remember, today, saturday is race day so the forum's are usually quiet until tonight and tomorrow. You only asked yesterday for help. Back to what was said, use the search option and read read read. I can't count how many hours I have read and I usually only ask for help after I have tried stuff but thats just me. I would image that a 4S lipo would be the best option on a 2650. so, assuming using a 4S and seeking speed around 40mph, here are some combos. mph is an estimate of course.
50/12=39mph
46/12=41mph
44/11=40mph

hope this helps
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Old 03-28-2009, 02:10 PM   #6
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Pete,internal ratio on RC8 is diferent than most 1/8 cars,nitro guys use 15/16 tooth pinion.

Rob you may start by 46T spur with 15T pinion then adjust for your driving style and track from there.
For MMM I would star by low punch and timming dont forget to adjust lipo cut-off to 3.2v per cell just to be on safe side.
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Old 03-28-2009, 02:18 PM   #7
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I have an RC8e with a mmm 2200 combo. I run a smaller hardpack clay track with a 46\16. I would probably start with a 14 personally. You are going to have to experiment some. You can try the 15 that came with it and just take a temp every vouple of mins. My temps after 13 mins of racing are in the 130- 150 rang for motor and esc.
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Old 03-28-2009, 02:23 PM   #8
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that's right. the rc8 has truggy type gearing.
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Old 03-28-2009, 02:32 PM   #9
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Thanks for all your feedback and good point regarding your raceday.

This forum has millions of posts and threads so figured best way was to start a new one!! lol
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Old 03-28-2009, 05:48 PM   #10
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Quote:
Originally Posted by rob8246 View Post
Thanks for all your feedback and good point regarding your raceday.

This forum has millions of posts and threads so figured best way was to start a new one!! lol
Yeah, that makes sense, instead of asking your question on the pre-existing thread that is regularly read by the people with tons of experience and all the answers.
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Old 03-28-2009, 09:36 PM   #11
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You may find this calculator handy.

Keep in mind you have a pretty high kV motor for 1/8 scale use, so you'll have to gear pretty low. Using that calc, 40-50 mph is a decent starting spoto I guess. Keep in mind that unusual 1/8 buggy internal gear ratio for RC8, though.

As far as lipo batteries go, Zippys from hobbycity.com are very cheap, and may or may not work for your purposes. There are some more brand name choices available for higher price tags, but I'm not an expert in that area.

For the MMM settings, you don't have to do anything unusual. Just use a low/normal timing for the motor and you should be ok.

My best advice would be to pick a random page in the big 1/8 electric scale thread, and start reading from there. You'll be surprised how informative it is.
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