jude26

My Feedback: (1)

I have an Ofna Starter box, but the wheel is too big to reach the flywheel to start the car. I'm thinking of adding a pull start. Its the 18TZ with the pilot shaft. Is it possible to just add the pull start from the
18TZ-TX or is there something additional that needs to be done?

Lelolai

You can put the pull start on it. but my friend also had that same problem. what he did was taking a dramill and make the whole where the flywheel come out of body bigger. that way it could make contact with the wheel on the box.

Good Luck!

CBM Racing

Or, if you don't want to do surgery, get nonpullstart engine mounts and/or larger flywheel. When I first got a starter box, had same problem. Then presto! Shorter mounts for nonpullengines, problem solved. Also you shed unneeded weight and reduce drag from pullstart, and lower the c.g. by a hair, its win win. I love it for bashing or racing, my buddies rotostart batteries die, and he's done. If my starter box batts. die, I just use jumper cables and my car. If I plan on running all day, I take a lawntractor battery so I can use it on starter box and charge transmitter/receiver batteries. The ease of use and never worrying about dead batteries or broken strings or siezed one way bearings or broken, worn, leaking starter shafts and backplates makes it worth the couple bucks for engine mounts or flywheel. Let us know what you do!

ferrarimk13

just stick a pullstart on and youll be fine, no need for dremeling the chassis, which can work if you have time and a dremel

jude26

My Feedback: (1)

Thanks guys.

If I go the pull start way, are these the only two pieces that I will need?

http://www3.towerhobbies.com/cgi-bin...0&I=LXJPZ7&P=K

http://www3.towerhobbies.com/cgi-bin...0&I=LXJPZ6&P=K

ferrarimk13

yep, theres a pullstart version, but its a rotary carb, and i dont think the NTC3 has that, im pretty sure its a slide?

jude26

My Feedback: (1)

I own the non pull start with slide carb and pilot shaft. I'm going to get the pullstart off of the rotary carb TX one and install it.

Other then the backplate and the pull start, do I need anything else to make this conversion work?

Spetz

You can't just put a pullstart on a non pullstart engine
Cuz the crank is different. The non pullstart crank doesn't have that bit extending out where the conrod connects to

ferrarimk13

thats absolutely wrong, as long as theres a pullstart for the engine, you just need the backplate and the pullstart. The only difference with the crank is the length out the front, which makes no difference.

Spetz

Have a look at the CVR range on towerhobbies
They list different cranks part numbers for the pullstart and non pullstart version. Even in the pic I am pretty sure you can tell that the non pullstart version is missing that bit on the crank
I don't know how this is on other engines however

ferrarimk13

the cranks are the same in the back, they are just different lengths, either SG shaft, or short shaft, etc. The rear is the same, so the pullstart backplate works the same way on all engines.I get what you're saying but look at these two shafts, the only difference is the front

http://www3.towerhobbies.com/cgi-bin...?&I=LXJPZ1&P=7
http://www3.towerhobbies.com/cgi-bin...?&I=LXJPY8&P=7

Spetz

Have a look at the pics again in the links you posted as the cranks are different at the back. One of them supports pullstart and the other doesn't. You can tell because where the conrod connects to, one of them has an extension and the other doesn't

It's very clear in the pictures
Therefore you can't just add a pullstart system onto any engine


Best bet is to take the rear plate off and check if the crank supports pullstart

ferrarimk13

hm, i see that now, im not sure then. Thats all the pullstart holds?

Spetz

Yeah that little bit that extends out is what the pullstart connects to
I have dismantled all my engines and all the pullstart ones have that

That's why you can't just put a pullstart on a non pullstart engine without that crank
This is the bit that holds onto it:
http://www3.towerhobbies.com/cgi-bin...?&I=LXHKW0&P=Z

nitrohead5300

And pullstarts rob the motor of hp and rpms. I would try modding the starter box so it would work.

oneofakindtrini

yea there is a pull start version , with a rotary carb

K223

Not sure if this thread is still alive...But I would like to install this OS Engine a .18tz OSMG2110 which appears to be a non pull, SG crank, Slide carb in a Factory Team NTC3 I am doing up. Does someone make a roto start backplate for this setup? Rather not go the starter box route and I have a 6mm AE starter gun currently for another vehicle. Not looking to pull start and add weight and drag on the motor either.

Thanks

K223

scottywilkes

roto starts add the same ammount of drag as a PS does, they both still use a open backplate and OWB

nitrohead5300

If you want max rpms and speed out of your Nitro TC-3 with a .18 TZ forget about the pullstart or rotostart and go with the bumpbox. Check e-bay you should be able to get one for $50.00

K223

Thanks...This is starting to sound like the general opinion and why go with a good car and a potent engine to short change yourself in the end by slowing it down and weighing the car down. 50 bucks on ebay huh....I will have to check it out. I guess I was not in the know and still did not realize how much drag even a roto start with the one way bearing and such will put drag on the crank. Might as well do it right the first time around.

Does anyone know if the kit comes with the flywheel I need to work with a bump box or is there an aftermarket one I may need? Yet to find out when I get the kit in my hands.

Thanks

K223

shinobid

WOW!!! I bought my NTC3 with an OS 18 TZ with a pullstart on it and I can barely control the dang thing...now you guys are saying that it's underpowered because of the pull start??? Yer telling me this engine has even more power than what I'm experiencing???? Un-freakin-believable!! This engine is A-M-A-Z-I-N-G!!!!

K223

LOL I would not think it would be shy on power even with a pullstart dragging on it and your statement says it's not. I am sure it will be a monster with this engine. I am not crazy bout pull starts to begin with and having the extra baggage in the car. So why not keep it out right from the start and makes it easier if I decide to switch motors at will and not have to worry about different starting system for each but just keep it all Bump box style.

K223

nitrohead5300

Once you put your alignment pins on your bumpstart box starting is sooooooooooooooooo much easier and faster!! You just put your car inbetween the alignment pins and fire it up!![sm=thumbup.gif]

K223

Yeah it sounds like the best starting solution....Will pick one up and that takes care of that. Now to azquire the engine lol

K223

robbio4422

im kind of in the same boat... i have been woring on a nirto tc3 and im deciding to swap the stock ae.15 /pull start for an os 18 cv-rx... what all will i need to get... will i be ok with the motor and a flywheel? or do i need more?