New Servos?
 

Hey guys i have looked for about an hour or so for an answer to no avail. So if its out there im blind and just didnt see it. so bare with me. :)

im getting a brand new ofna nexx 8t. I am very new to the nitro world and after months of research and scouring the interweb ;) i decided on that truggy as something i can have allot of fun and grown into for a while. in anycase i need to know what are the best servos i should get for the truggy and any other recommendations you all may have while at it. IE (suspension, tires, the proper fuel ect, ect)

i plan on doing some mild bashing/random running around for a while to get used to my car and what not.

If your shopping online, servo's: savox-1256 for steering and 1258 for throttle are a good start. if you want high voltage go 1267 and 1268. Quality fuel is important. Byrons is widely available. 30% nitro, 11% oil til you get use to tuning then maybe go to 30/9. There's other good brands out there, but this one is usually available everywhere. Tires for bashing, Get BIG tread. If you have a hobby shop close by, consult with them about your needs... Ask a lot of questions and know what and why your doing what your doing... More info= more fun!!!;)

can anyone confirm that this is an okay fuel to use for the breakin process? i couldnt find the byrons fuel anywhere.


well okay tried to post a link guess the site wont let me its Cool Power Sidewinder Race 30%N 12%O Qt from the website towerhobbies

sidewinder makes good nitro. when i ran nitro, i always used sidewinder or byrons

thank you im going to get 3QT's of it with Ofna After-Run Engine Oil Red. good idea?

Don't put after run oil in your fuel. Just break in the motor with the 30% that you plan on running for the life of the motor.
Idle 2 tanks through it on a stand and then drive a few tanks through it on the track real rich. Don't go for the big jumps, just drive mellow and after you have ran a few tanks through it start working towards your race tune.

There is a break in fuel that you can run that has a higher oil ratio but I never used it and got a full season out of motors driving multiple times a week.

After run oil is for the end of the day when your done driving.

By the way, you didn't mention what motor. If its a cheap rtr motor you are probably better off running 20%.

I do not know anything about sidewinder, not saying it's bad. You shopping at a hobby shop i assume?

After run oil: Get some synthetic 2 stroke oil and call it a day. Way cheaper and will protect. I know with Byrons fuel, many guy's do not use aro. Keep your rig in a controlled temp enviroment and you should have zero issues....

Here's Byron's fuel....

http://www.amainhobbies.com/product_...Fuel-One-Quart

If your engine is new, go here and learn it!

http://www.rctech.net/forum/offroad-...eak-bible.html

Use this for tuning, Got questions, ASK!

http://www.rctech.net/forum/offroad-...ing-bible.html

The "idle 2 tanks" is old school and has been updated. Like i posted before, ask questions and know what and why your doing what your doing....

Ya guys thank you. for sure! i thought i had put that in my post that i was going to follow the break in bible and tune bible on this site.and as for Fq06 its the ofna nexx 8t .32 engine. again i am very new to the sport so if thats not the modle number of the engine im sorry i dont know for sure then. but willing to learn! im excited cant wait to get out there! thank you everyone for all your help and info so far it is very much appriciated.

also i wasnt going to put after run oil in my fuel i only bought it to use as it was intended, for an after the day maintainance.

That is a great break in link Schultz gave. Follow that. A lot more detailed info than I took the time to write like when letting it cool between heat cycles you want to rotate the flywheel to bottom dead center (BDC) where the cylinder has the least pinch and so on.

Yeah, idle method is old school... I'm old school :lol:

For a cheap force motor I would run 20%. Save the 30% for race motors that use higher quality metal internals.

You will want to get a starter box soon if you don't have one already. Pull starts are a huge pain. Besides the yanking on a rope the one way bearings in there need more attention than your going to want to give to them. Get a box and you will enjoy your day at the track.

For after run oil, once again as Schultz said use whatever synthetic oil you want. Its only job is to coat the internals so condensation does not rust stuff up while its sitting for days.
When your done for the day, empty tank and let it idle till all the fuel is out of the lines and motor. Then spin it on the starter box for another 10 seconds or so to make sure all fuel is evacuated out of the motor... one more reason for a box :D

ok cool thanks. any ideas of a good box? should i just ebay it? also i wanted to ask you about the servos mentioned in the above post's

the savox-1256TG -

Speed(@4.8V sec/60): .18
Torque(@4.8V oz-in): 222.2
Speed(@6.0V sec/60): .15
Torque(@6.0V oz-in): 277.7

the speeds seem slow to me .18 and .15 i thought i should be looking for servos that are around the same torque or a little more maybe in the 300 range with a sec/60): .9 and like .7 range??? or am i totally wrong?

also one more thing i dont fully understand is the voltage rating on the speeds. (i mean i understand the more volts you give it the faster the servo goes, i get that.) what i mean is i have a nitro car. how am i giving this servo varying voltages as i dont have a electric battery driven car?

http://www.amainhobbies.com/product_...gy-Starter-Box

ofna blue truggy box, one of the best boxes out there. will start anything. i used mine with a 12 volt hobbico battery

Any 1/8 starter box will work including the one mentioned above.
I've had this one for about 12 years.
http://www.amainhobbies.com/product_...ox-w-12V-Motor

You want a servo with about .10 speed at 6v for steering and at least 200 oz/in. Throttle servo can be slower and less powerful.
My personal favorite but there's tons of choices, do some searching on rctech for opinions
http://www.amainhobbies.com/product_...rvo-w-Heatsink

They list different ratings at different voltage for different setups to get power to your reciever.
Your kit will come with a battery holder for 4 AA batteries to power the reciever but you will want to upgrade to a NiMh pack or even a LiPo power pack to power your servos through the reciever that they plug into.

thank you all for your help and links i have several things i am now considering. Can anyone tell me how i can tell a steering servo from a throttle servo? or is it just a matter of a part that can be switched out? also i found this while i was looking at your guy's post's what do you think?

Hitec HS-7940TH

A standard size servo like the ones that have been mentioned is a standard size servo. All the same stuff.
Difference is the internals, what combo of speed and torque do you want.

Most people will spend more money on the steering servo as it needs to be strong and fast. You can get away with a less expensive servo to run the throttle. Not a ton of torque needed for the job of throttle & brake. You don't want to go super cheap but you don't need to spend over $100 either.

Hitec's used to be a low end servo years ago and I haven't run them, but they are making some good servos now. That one mentioned is a good high voltage servo that is intended to be used with a 2 cell lipo (7.4v) as your receiver pack.
Guessing you are going to use a radio that comes with the car? RTR?
Won't work, your receiver will only handle 6v.

Buying a radio that's good and not using the RTR radio that comes with the car? Then you have the option of buying a radio with a receiver that can take 7.4v... not all of them do. 7.4v servos will cost some $$$ to step up to. Good radio, $250+. LiPo reciever pack, $20. Charger for lipo pack $75 minimum. 7.4v servos $150 x 2.
For now, run it how it's coming and upgrade as your skill progresses (RTR steering sevo may break 1st day so that upgrade may be coming soon). Get some rechargeable AA's and have them fully charged every time you go out. Have double the amount needed and swap them out mid day.

Do some searching and reading on it, like I said... tons of opinions. Sift through those opinions and do your homework. I'm not a fan of savox, but someone has mentioned those to be a good choice on this thread. We all have different opinions and experiences, one person will say something's good and another will come in a say its not good. No real black & white this things best unfortunately :lol:

Here's a cheap $28 servo with good numbers, got one for my brother inlaw and it's holding up well (USA warehouse).
http://www.hobbyking.com/hobbyking/s...arehouse_.html

Here's a simple search to get you started, a few conversations to sift through
http://www.google.com/search?hl=en&s...hp.Q2fUKNesjHw

As stated above, servo's are a debatable item. I said savox because I own them and can tell you from experience they are a good middle of the road servo for the money. Noisey, but strong. I recently replaced one of my savox with a radiopost. WOW, super quiet and lightening fast, but I have no real runtime with it yet so I won't recomend something I haven't used yet. If it stands the test of time, they will be awesome servo's....