what brushless system to run?

**CarFanatic** · 08-16-2011 02:47 PM

Whats a good set up to run in the summit, that works well for crawling? I want to run brushless lipo combo for better run times and consistent power. I don't plan to run in water.

**CarFanatic** · 08-16-2011 03:38 PM

I"m leaning towards the MMM 2200... how does this do at slow speeds?

**_jarhead_** · 08-16-2011 03:51 PM

Originally Posted by CarFanatic

I"m leaning towards the MMM 2200... how does this do at slow speeds?

On a Summit??? Sounds like a waste of a truck. Not too be mean I don't think that system works toooo well at low speeds. I could be wrong! I wouldn't do it.

**b@3** · 08-16-2011 04:18 PM

A sensored brushless system is what you are looking for, it will be good for crawling. The MMM is sensorless and will cog at low speed. Tekin is a popular system, jamann just got a different sensored system and seams to be happy with it. I'm sure he'll chime in.

**CarFanatic** · 08-16-2011 04:59 PM

is the tekin system sensored I didn't think it was...

**b@3** · 08-16-2011 05:11 PM

Tekin is sensored. The esc runs a dual drive mode, it starts in sensored and switches to sensorless. Check out tekins website for more info.

**OnebadTMAXX3.3** · 08-16-2011 05:50 PM

i have the MMM 2200 system and with the updated firmware it does very well at slow speeds and crawling.

**CarFanatic** · 08-17-2011 08:44 AM

what tekin motor combo is best for the summit?

**E-RevoVXL** · 08-17-2011 09:20 AM

Originally Posted by CarFanatic

what tekin motor combo is best for the summit?

The RX8............

**CarFanatic** · 08-17-2011 09:27 AM

I"m going to order an rx8, and recommendations on the motor size and gearing?

**zanek** · 08-17-2011 01:07 PM

Originally Posted by _jarhead_

On a Summit??? Sounds like a waste of a truck. Not too be mean I don't think that system works toooo well at low speeds. I could be wrong! I wouldn't do it.

It goes surprisingly well at low speeds. It you are in low gear, the motor is going at pretty high rpms. When I want to go rock crawling, I shift into low gear and run on 2s lipo. Is is a little slower than stock and super smooth, even next to stock it is pretty smooth

**CarFanatic** · 08-17-2011 01:10 PM

zanek what kv motor did you get.. I'm thinking the 2250.

They are all on back order till like september...

**b@3** · 08-17-2011 03:38 PM

**jamann** · 08-17-2011 04:57 PM

I went ******* 150a sensored with a xerun 2250kv sensored motor it was a good investment to see if brushless is for me.Keep in mind i was the guy who said.... and i quote"i will never go brushless in this truck"...chomp,chomp.....I'm a bit full from eating those words.still have my dewalt setup for winter but it crawls as good maybe better and flip it in high and it becomes a dirt chucking gravel shooting rip snorting beast(see Tim camerons buggys on you tube)People,trucks,cats,dogs everything gets out of the way

**bassman57** · 08-17-2011 06:16 PM

Here's what I'm running:

Tekin RX8, 2250 kv, 4s or 5s lipo, 18/62 gearing.

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I am here: http://maps.google.com/maps?ll=37.626379,-122.426731

**CarFanatic** · 08-18-2011 09:41 AM

I just ordered a tekin rx8 2250. Whats stock gearing? I"m not sure?

**b@3** · 08-18-2011 12:36 PM

Stock gearing is 14p/68s.

**CarFanatic** · 08-19-2011 11:04 AM

so you all suggest the 18\62 then?

**jamann** · 08-19-2011 11:25 AM

I'm running 16p 58s at the moment seems pretty good so far keep a eye on temps thats the best indicator

**CarFanatic** · 08-19-2011 11:37 AM

I will try the 16p first I think I have one already. are they 48 pitch?

**b@3** · 08-19-2011 11:49 AM

No, 32 pitch or 0.8 metric.

**CarFanatic** · 08-19-2011 11:54 AM

ah ok glad I asked!

**87 GN** · 08-19-2011 12:20 PM

http://traxxas.com/forums/showthread...-new-outrunner

Check out this thread..^ In the BL Revo section...

**CarFanatic** · 08-22-2011 01:55 PM

is there much difference running a 18/62 vs 16/58? what would be the better combo? I'm bad at figuring out the final ratio..

**jamann** · 08-22-2011 02:20 PM

It depends on what you are after
to figure out final drive ratio in low stock is (70:1) spur divided by pinion multiply by14.45 So 18/62 =49.77:1
16/58 =52.38:1 in low .I will let you do the math for high gear.it's spur/pinion x 5.22

**87 GN** · 08-22-2011 02:23 PM

You have the 2250 motor & what cell count of batts?

**CarFanatic** · 08-22-2011 02:24 PM

so if I want more power in low I should go with the 16/58 and lose some top speed right?

**CarFanatic** · 08-22-2011 02:28 PM

going to be running 4s. yes 2250 rx8

**jamann** · 08-22-2011 02:35 PM

i should add I was running the dewalt with 12 58 and 14 58 to rotate the motor more to the center and get it a bit lower for climbing.It helped.went cheapo brushless and went 14/58 now at 16/58 seems happy there crawls great and still has plenty of snort even detuned haven't really broken any thing exept my new shell high speed runs+drag brake set on to test it out= short life for that shell...LOL I'm running the xerun sensored 2250kv motor the 14t pinion made the motor run a bit warm 16 seems to have evened that out have to run it hard for a bit to see....Oh Ya and hang on it's going to suprise you when you hit the throttle

**CarFanatic** · 08-22-2011 02:41 PM

maybe I'll go 18/62 then see how that does..

**-volkinharley-** · 08-22-2011 02:53 PM

jamann does it stripp rear diffs with your setup easily

**jamann** · 08-22-2011 03:07 PM

I have my slipper set to where it will just barely lift the front on a hard launch slips a bit more on high traction i have 7 oz of lead weight in each front wheel so wheelies are not on my list of things to do.so far doing ok.i am looking into metal diff carriers.thats where most of my failures have stemmed from the cup flexes or cracks and parts start breaking

**CarFanatic** · 08-22-2011 03:33 PM

more power, more fun, more problems!

I"m gonna try the 18\62 maybe wont have as much torque save my drive line a bit.

**87 GN** · 08-22-2011 05:39 PM

I have 7 oz of lead weight in each front wheel

What kind of lead??

**jamann** · 08-22-2011 05:46 PM

Originally Posted by 87 GN

I have 7 oz of lead weight in each front wheel

What kind of lead??

I used fishing lead 1/4 inch round comes on a roll two wraps inside rim and started and ended in the same spot so they pretty much balanced.duct taped to stop them from moving.Stick on automotive weights work really good as well

**jamann** · 08-22-2011 05:48 PM

Originally Posted by CarFanatic

more power, more fun, more problems!

I"m gonna try the 18\62 maybe wont have as much torque save my drive line a bit.

you can also tune down the esc and work your way back up until it gets just out of control.........
then one notch farther....LOL

**CarFanatic** · 08-23-2011 10:37 AM

motor comes today, I got my gears from the hobby shop last night.. so cant wait to try it out!

**87 GN** · 08-23-2011 11:39 AM

I used fishing lead 1/4 inch round comes on a roll two wraps inside rim and started and ended in the same spot so they pretty much balanced.duct taped to stop them from moving.Stick on automotive weights work really good as well

Humm pretty trick, help keep the front end down.

**jamann** · 08-23-2011 12:45 PM

Originally Posted by 87 GN

I used fishing lead 1/4 inch round comes on a roll two wraps inside rim and started and ended in the same spot so they pretty much balanced.duct taped to stop them from moving.Stick on automotive weights work really good as well

Humm pretty trick, help keep the front end down.

pretty much madatory for climbing, the front just doesn't bite as well without the weight and much less flipping over backwards.The front will settle down instead of continuing to reach for the sky

**-volkinharley-** · 08-23-2011 11:33 PM

tacon 2150 plus the ******* 150 amp good set up yes?

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