Starting St-rr build

Well ive been doing alot of research and im ready to start!!!
Here is my package but got questions about it
1. CC MMM 2200kv combo
2. What pinnion if im running a 50 spur gear?
3. Should i go with 2x 7.4v 6000mah 30c saddle packs or 2 zippy 5000mah 4s 25 or 30c or a 5s setup?
4. Lmk know guyys...20 to 30min mains i will be doing(most likely 20)

[Ryu James]

i personally recommend a 5s, 5000mah, 25c or 30c pack for this type of setup. it seems to be the best combination of controllable speed and torque. i currently have all my setups (3 truggies) with a Tekno Neu 2200kv 1515 1y and 5s lipo. 4s was a bit too slow for my tastes and 6s is just insane fast and unnecessary. 5s will still give you 45-50mph speeds if you want.

as for pinion i would run a 15,16, or 17t depending on the speed you want. visit the RC calculations page for more info. without factoring tire ballooning a 16t pinion will be about 50mph top speed with 5s on 2200kv Neu according to the calc. this is probably pretty close to what you will see. if thats too fast just gear down to a 14-15t pinion. good luck.

btw, be sure to post pics of your setup. i have been considering getting a STRR and would like to get feedback from someone who has one.

http://www.scriptasylum.com/rc_speed/_top_speed.html

I am thinking i of getting the (TEKIN RX8 1700kv combo) run it on 5s lipo..maybe preorder one this wednesday BUT what does it have over the MMM that makes it more expensive?!!!! Worked ton of extra days just for this conversion:D
Will 1700kv on 5s be good? I was told it will be a very efficent setup

[js058515]

Originally Posted by derek_18mt

I am thinking i of getting the (TEKIN RX8 1700kv combo) run it on 5s lipo..maybe preorder one this wednesday BUT what does it have over the MMM that makes it more expensive?!!!! Worked ton of extra days just for this conversion:D
Will 1700kv on 5s be good? I was told it will be a very efficent setup

http://www.impaktrc.com/product_info...oducts_id=3076

It sounds like your a track guy so if you look at the chart on the above page you will see that a 5S battery with a 1700kv will give you about 31k which is perfect for track use. Efficient enough to help you with your run time goals. At least get 5000 mah and be sure to check the weight of the pack when you get to larger mah packs.

I had an ST-RR with Dan's RC Product Design conversion running on 6S 4000mah using a Neu 1512 2y 1400kv with 17/50 gearing getting me almost 20 mins. Not a lot of people like the 1512 for the Truggy, but the temps were good, weighed in a little lighter than a 1515, and still had tons more power than I needed. I have a pretty good throttle finger so I had a lot more efficiency with that too.

The only thing I would be worried of is that the Tekin has not been tested by the consumer yet. I too am eye-balling the motors and the speed control but won't move until the forum folks give us the dirt. I have gone through 3 MMM's and Nue motor when I got started with 1/8th electric (MMM's were my fault and all covered, Nue was covered and Impakt RC took care of me on that) now all my stuff works flawlessly. I still carry a spare MMM and Neu motor to the track. Downtime sucks especially when you just bought it, took the time to carefully install it and after a few minutes if goes up in smoke.

Anyways, sorry for the rant! Let us know what conversion your using and what motor you end up getting. Hope that helps some.

So you guys think i should go with the mmm since its proven, both mmm/neu come out to tekin combo!!
MMM($134)
Neu (1512 2y) or ( 1515/?/? that makes 1700kv) or (1512/?/? 1700kv) $185
Which would provide the most runtime/ be very efficent/and be great in truggy?
or should i go tekin

[Jabe]

Tekin is sensored, so it will be more accurate than MMM.
MMM is cheaper.

So which do you say..comes to the same price for me!!

[js058515]

Originally Posted by derek_18mt

So which do you say..comes to the same price for me!!

MMM/Neu or the MMM Combo is the way to go right now......."Tekin is sensored, so it will be more accurate" is a true statement. But once again we come to the fact that no one other than a handful of sponsored users have given us (who have to actually work hours to pay for the stuff) any useful feedback.

From your statements Derek, you work hard for your money and want to make sure you don't have to send anything back to the manufacturer if it doesn't work right. If that's the case, then you have one obvious choice. If the Tekin setup gets good reviews from us in the next few months, then I will be in the market to upgrade myself. Good luck.

[Sower]

Originally Posted by Jabe

Tekin is sensored, so it will be more accurate than MMM.
MMM is cheaper.

Actually the Tekin is sensored and sensorless.

[George16]

I'm currently running my ST RR on 5S with a MMM/TeknoRC Neu 2200Kv 1Y on 50/15 gearing. I like it a lot.

[rootar]

We run the MMM and nue 1515 2.5d (1650kv) on 5s5000mah lipos in our truggies this has got to be the best setup for the "race track" gear it for 40mph according to the speed calculator and now never have to worry about temp problems and youll get great runtime, we cant quite make a 20 minute race on 5000s (only 18-19 minutes) but if you were to squeeze a 5s 6000 polyquest in there youd definetly make 20 minutes by still not 30......but this could be different for you depending on your track, your gearing, and how you drive.