DaveInLA

Hey guys, I have a couple questions about the TT-01 I hope people can help me with.

First, I've almost completely built the chassis (still haven't done shocks yet) for my Schnitzer BMW M3 TT-01 with all stock components. I had planned on using the ball bearing kit, but I guess I got so excited and immersed in the build that I just kept on going. At this point, how difficult would it be to undo everything and start over with "hop up" parts like bearings, alum prop shaft and other suspension bits? The parts went together pretty straight-forward, but I'm afraid that at this point, some parts will be stuck or otherwise hard to remove. Should I even bother?

Second, I'm considering getting another TT-01 and doing this one right. I've got my eyes on the RX7 FD3S.
http://www2.towerhobbies.com/cgi-bin...?&I=LXPXS4&P=0

Anybody know anything about this car? How well do the LEDs work? Also, would I be able to interchange this body with the BMW's; ie, are the chassis exactly the same between cars (obviously except the lights)? I ask because some of the dimensions/specs are different between the RX7 and the M3.

mindwreck

it isn't too hard to take apart. almost all the bearings are in the uprights, the rest are in the diffs, and those are easy to take apart too so its doesn't take to long... There are slight differences in between the tt-01 kits they're most all the same. Some have different bumpers or wheels, mainly things to make the cars look more scale. for example, My fxx has a wider rear axles then most kits since the fxx is a 200mm body instead of the standard 190mm for electrics.

The rx7 is sweet. saw it at RCx. That light unit does a lot of stuff. turning, hazard lights, breaks, headlamps.

My friend, his names nubus here and lives in alhambra too. I got him hooked on RCs and he went and bought both light units, it does a lot of things and you can talk to him if you want to know more about it or have him show it to you. His tt-01 is rigged up with the lights, pretty sweet.

Ajaxman

Do i have to disassemble the whole rear diff to install a new spur gear? Tried changing to the 58t spur and i had to remove the entire rear diff to reinstall it. Or is there something im doing wrong?

mindwreck

yes and no depends on that bevel in the diff. The bevel gear inside the diff is attached to the shaft that the spur gear is on.if that falls, you will have to open the gear and reattach it to the shaft... IF the bevel gear stays and doesn't fall then your lucky and you don't have to open the diff.

wouldn't necessarily call it wrong, just more steps to do.

Ajaxman

Hahaha knowing my luck and clumsiness, i guess ill be taking it apart every single time. Also im thinking of lowering the car by limiting the shaft length when i get oil shocks however i've also noticed that the camber rod thing is limiting my suspension travel at the fronts so im guessing i'll need to get the turnbuckle types before lowering the car?

mindwreck

yeah those steering arms messes with the suspension travel and movement of the front. this will solve the problem http://www2.towerhobbies.com/cgi-bin...?&I=LXFSE3&P=M

DaveInLA

What do you think of this power combo? I'd like to just mess around on paved roads, maybe drift for fun as well. Nothing competitive.
Orion Method R 17x2 (or is the 19x2 better?)
Novak XRS controller

mindwreck

the method R is a good motor: the 17 will be slightly faster

the xrs is not a great esc. the 40amp rating limits it and doesn't give it any punch.
get this one, little more expensive, but better: http://www2.towerhobbies.com/cgi-bin...?&I=LXUY14&P=7

Momchil

I have a big problem with my tt01 someone help!!!!

Just got Mamba max 7700 and esc.Its great but the battery gets way too hot.I even got Deans.Is it the gear ratio because I only get 5 min out of 3000 Nimh.
I am running a 61/19 ratio , tried 58/24 and the esc was shutting down and getting hot.
What pinion and spur shoud I use for an motor like this!!!!!


PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!

DaveInLA

A few more questions for the pros out there.

If I go with the Orion Method R 19x2, do I have to change the gearing/differential in the TT-01 to achieve max performance? I think the stock silver can is 20+ turns, this one is 19. Also, the motor I got seems to be of an older generation, as it's not "V2". That is, it isn't purple on the end. Hopefully that won't mean it's outdate. But about the motor, it comes with blue and yellow wires with connectors. I know what the bullet connectors are, but on the other end of those wires is a connector I'm not familar with. I guess it's a "spade" connector that I've read about, but I can't figure out where they attach to the motor. My old version of the motor looks like this:
http://www2.towerhobbies.com/cgi-bin...?&I=LXPRF9&P=7
the connectors look like this:
http://www2.towerhobbies.com/cgi-bin...&I=LXTJ21&P=ML
Where do the wires connect to the motor?

I don't know if I should pay the extra $20 to go from the Novak to the Futaba that mindwreck recommended. I understand that 40A is low compared to other ESCs, but it should be able to hand 6 cells and the Orion motor I bought, right? If so, how is it limited? Thanks.

mindwreck

You can probably runnign it 22 or 23 pinion and 58 spur. I'm running a 24/58 in mine and its a fairly good balance of speed and acceleration.

The esc is good and will run fine. im just recommending youspend a bit mroe and getting a better one. Its limiting is due to the fact that faster and lower turn motors require more amps. When i ran that esc it felt completely underpowered compared to even the stock esc.

The motor already comes with with the bullet connectors you need to connect it to the esc. They attach like this

mindwreck

61/19 is the highest ratio this car will take without any modifications to fit bigger gears. This car was exactly made to take brushless power, but people have run it with no problems.
What kind of batteries are you using?
Is there anything binding the driveline? Make sure it rolls completely smooth and you have bearing and the aluminum main shaft. Those are must haves if your goign to run this kind of speed

DaveInLA

Thanks mindwreck, you're AWESOME! But I don't know what the stock TT-01 gears are-- the 22 pinion and 58 spur... is that stock?

Anyway, I might consider the better ESC, but I don't see myself buying a super-powerful motor for this car in the near future.

Also, I really appreciate the picture, but it's too small on my monitor to really see much. I guess the spade connectors just clip over something, but I played around with them and couldn't get it to fit over anything. I also take it that I don't need to solder anything?

mindwreck

the stock gearing is 19/61.
Are the connectors not soldered on already? If they came with the motor i thought they were already soldered on for you. IF they aren't and you have those trinity no solder leads, the "spade" end should fit on the tabs of the motor. Personally i just solder everything, more efficient, less resistance, and no chance of the wires coming off.

DaveInLA

yeah, my motor looks exactly like that on the rear end. Pretty straight-forward, but it's just that I've never seen this design before. All the motors I've seen (mostly electric planes) have the leads already soldered in.

Momchil

Battery is new Epic 3000 Nimh and I got ball bearing set,aluminum propelar shaft with joints too and everything looks perfect. It just feel over or under geared!!!
I am out of options please help!!!

DaveInLA

Mindwreck, what do you think of the rear ball differential set?
http://www2.towerhobbies.com/cgi-bin...?&I=LXFSE4&P=7

Would you say it's a "must" like ball bearings and alum prop shaft?

For that matter, how about the alum steering set?
http://www2.towerhobbies.com/cgi-bin...?&I=LXFSE9&P=7

I already plan on getting the tie rod set that allows rotation of the tie rods at their bases, but does this steering set add much benefit?

mindwreck

now your getting into the serious stuff. The ball diff is good for handling and cornering power, sort of like a limited slip diff for RC cars. Its definitely not a must have hop-up. If you just mess around with the car, you probably won't notice the difference.

The steering set is also a good hop up for the performance minded. counts out a lot of slack in the steering and makes it more precise.

Raguvian

Those batteries suck for a Mamba Max. Get IB3800/4200's or Lipos.

DaveInLA

All right then, I think I know what upgrades I'll have when I'm done. Let me know what you think.

metal motor mount
heat sink
alum prop shaft
ball bearings
turnbuckle tie rod set (just by playing around with the chassis, I can see the suspension binding discussed in another thread)
Orion Method R 19x2 motor
either the Novak or Futaba ESC
pinion gear-- still not sure which one, maybe 21?
stock 61 tooth spur gear

I think I'll hold off on the ball diff and the steering set. Anyway, the steering set will be easy to change should I choose to go that route in the future. The ball diff is a bit more trouble as it requires removing the entire rear suspension.

Mindwreck, do you race your TT-01 or just play around? Where do you RC?

mindwreck

looks good. Make sure you get the right pinions. they are metric and not standard gears. search AV pinion for the tamiya ones or the metric pinion for the Robinson racing ones.

now i mostly play around, since im at college right now.Most of the times i just drive with Nubus. I do want to start racing and maybe go to some event races at that tamiya track down in aliso viejo.

Me and Nubus usually go to the parks and drive in the parking lot or we take my trucks and tear up the grass and baseball field.

mhx

Tamiya Racing Car TT-01R Chassis Kit

What is the top speed for this car out of the box?


Whats a good, fast, trq'y brushed motor upgrade for it?

1. Balls out the Fastest one this chassis can handle?

2. Fastest one while keeping the thing reliable?

lee172

my beloved Escort Cosworth has been set free.... http://cgi.ebay.co.uk/Tamiya-TT-01-w...QQcmdZViewItem

mindwreck

lee why are you punishing yourself... how could you let such a nice car go...

lee172

its never gonna get used.. its just clogging up my shelf! anyway.. makes room for more great builds! [8D]