5LikesTamiya TB-03
10-07-2009, 10:58 AM
#1351
Oh and before I forget I wanted to give a big thanks to Kerk on this forum. He saw that I needed a rare part for my evo5MS and bought it in SG for me AND sent it to me for free! I was speechless! Your present from me is on the way
TB03 thread members rock!
TB03 thread members rock!
10-07-2009, 07:59 PM
#1353
Great to know your EVO running!!
Getting the part to you is my pleasure. Don't have to mention it.
I suppose anyone who's serious about their TB-03, will eventually get their hands on the EVO 5/ MS.
Probably one of my best buys! Love it!
Cheers!!
Getting the part to you is my pleasure. Don't have to mention it.
I suppose anyone who's serious about their TB-03, will eventually get their hands on the EVO 5/ MS.
Probably one of my best buys! Love it!
Cheers!!
10-07-2009, 09:46 PM
#1354
Maybe it'll get a little cheaper. I have not found a place that sells it below 400 yet. I am happy with my TB-03D though.
Does anyone know if the shocks are 50mm or 55mm? The standard shock size on the TRF shocks/CVA shocks?
10-08-2009, 06:47 AM
#1355
Now getting philosophical:
Reading enough about this evo (6) and TB-03(R) hype i still have a question:
Will shaft driven cars ever take the lead again?
I think we are on a good way. But aren't there general physical problems (torque steer e. g.) while running shaft driven cars compared to belt driven cars?
Or did developement a fast step forward to bring shaft driven cars back to the level of of belt driven cars? Torque steer doesn't seem to be a problem anymore after all the mods and improvements a (tamiya) car has received.
I dont't find a conclusion by now.
The general question is: Were they all wrong setting up belt driven systems?
What do you think about this?
Reading enough about this evo (6) and TB-03(R) hype i still have a question:
Will shaft driven cars ever take the lead again?
I think we are on a good way. But aren't there general physical problems (torque steer e. g.) while running shaft driven cars compared to belt driven cars?
Or did developement a fast step forward to bring shaft driven cars back to the level of of belt driven cars? Torque steer doesn't seem to be a problem anymore after all the mods and improvements a (tamiya) car has received.
I dont't find a conclusion by now.
The general question is: Were they all wrong setting up belt driven systems?
What do you think about this?
10-08-2009, 08:01 AM
#1356
Now getting philosophical:
Reading enough about this evo (6) and TB-03(R) hype i still have a question:
Will shaft driven cars ever take the lead again?
I think we are on a good way. But aren't there general physical problems (torque steer e. g.) while running shaft driven cars compared to belt driven cars?
Or did developement a fast step forward to bring shaft driven cars back to the level of of belt driven cars? Torque steer doesn't seem to be a problem anymore after all the mods and improvements a (tamiya) car has received.
I dont't find a conclusion by now.
The general question is: Were they all wrong setting up belt driven systems?
What do you think about this?
Reading enough about this evo (6) and TB-03(R) hype i still have a question:
Will shaft driven cars ever take the lead again?
I think we are on a good way. But aren't there general physical problems (torque steer e. g.) while running shaft driven cars compared to belt driven cars?
Or did developement a fast step forward to bring shaft driven cars back to the level of of belt driven cars? Torque steer doesn't seem to be a problem anymore after all the mods and improvements a (tamiya) car has received.
I dont't find a conclusion by now.
The general question is: Were they all wrong setting up belt driven systems?
What do you think about this?
I think if we set the corner weights right, it will provide uniform grip between the 2 pairs of tyres. This will yield balanced grip to propel and corner. Coupled with sensible suspension setups, torque steer probably will not be evident or corrupt our shaft cars' excellent performance!
Cheers!!
10-08-2009, 08:37 AM
#1357
One of the reasons belt cars don't see torque steer is because of the motor configuration.
Shaft cars have it bad in the effect of rotational torque of the motor being set longitudaly. With the advent of brushless the rotor is much less rotating weight than an armature in a brushed motor so this has helped somewhat.
Alot has changed and will continue to change with LiPos and other improvements. I think we will see alot of changes coming in the next years in regards to chassis designs.
Jimmy Wright
Shaft cars have it bad in the effect of rotational torque of the motor being set longitudaly. With the advent of brushless the rotor is much less rotating weight than an armature in a brushed motor so this has helped somewhat.
Alot has changed and will continue to change with LiPos and other improvements. I think we will see alot of changes coming in the next years in regards to chassis designs.
Jimmy Wright
10-08-2009, 10:15 AM
#1358
How long has the Evo MS been out?
10-08-2009, 11:27 AM
#1359
10-08-2009, 12:40 PM
#1360
I don't believe in all the talk of torque steer problems with shaft cars in stock to mid power motor class now a days since brushless motors came about. Like Jimmy said, the torque steer problem that people talk about so much with shaft drive is from experience with them back in the day. Try to hold on to a 10turn brush motor in your hands and go full throttle. Then hold a 4 turn brushless and go full throttle....ok you know what, thats a bad idea just take my word for it
When I got back into racing last year, I bought a 416 and then a couple months later I bought a evo5MS. When I switched to shaft drive for 17.5 everyone here said I was nuts, "why are you going to use a shaft car they torque steer blah blah blah" well things have been quite around here about that since I've been "torque steering" around them You just can't beat how smooth and efficient a well build shaft car can be. I believe a lot of people are quick to blame torque steer instead of not driving the car right. You have to be a little smoother with a shaft car because it is so responsive to throttle.
Shaft cars do have some disadvantage with weight placement, but with the right battery its not a issue. With my current lipo, my TB has no tweak.
Shaft cars have made a comeback for sure and I'm glad to see that. Classes like VTA and RCGT have really helped revitalize shaft cars. I like my belt cars too, don't get me wrong,but shaft drive is the bomb
I was the only one around my area with a shaft car...but not anymore, and some others I know are talking of getting TB03s soon. 2010 - the year of the shaft
When I got back into racing last year, I bought a 416 and then a couple months later I bought a evo5MS. When I switched to shaft drive for 17.5 everyone here said I was nuts, "why are you going to use a shaft car they torque steer blah blah blah" well things have been quite around here about that since I've been "torque steering" around them
You just can't beat how smooth and efficient a well build shaft car can be. I believe a lot of people are quick to blame torque steer instead of not driving the car right. You have to be a little smoother with a shaft car because it is so responsive to throttle. Shaft cars do have some disadvantage with weight placement, but with the right battery its not a issue. With my current lipo, my TB has no tweak.
Shaft cars have made a comeback for sure and I'm glad to see that. Classes like VTA and RCGT have really helped revitalize shaft cars. I like my belt cars too, don't get me wrong,but shaft drive is the bomb
I was the only one around my area with a shaft car...but not anymore, and some others I know are talking of getting TB03s soon. 2010 - the year of the shaft
10-08-2009, 01:03 PM
#1361
Actually, the bigger problem with shaft drive was probably the harmonics in the drive train with high power motors. I spoke with someone who worked at Associated, and he told me there were 3 points at which the harmonic affected the cars power from 0-45 mph. Each of the points took more power to overcome, and at least at the time of testing, they couldn't overcome the last point with the equipment they had. Unfortunately for them, whatever HPI was doing with their drive train on the Pro4, they could overcome this last sticking point of harmonics and could hit higher top speeds. That's why Hara won all those races vs. the Tc3 and Tc4.
Obviously, this wasn't really an issue with stock or 19t motors. With those cars, it had more to do with the lack of adjustability in roll centers and width, not to mention the Xray and corally cars being really free in the drive train.
Tamiya seems to have taken all of this in. The TB03 is a great car for the money, and overcomes a lot of these shortcomings.
Obviously, this wasn't really an issue with stock or 19t motors. With those cars, it had more to do with the lack of adjustability in roll centers and width, not to mention the Xray and corally cars being really free in the drive train.
Tamiya seems to have taken all of this in. The TB03 is a great car for the money, and overcomes a lot of these shortcomings.
10-08-2009, 03:40 PM
#1362
Actually, the bigger problem with shaft drive was probably the harmonics in the drive train with high power motors. I spoke with someone who worked at Associated, and he told me there were 3 points at which the harmonic affected the cars power from 0-45 mph. Each of the points took more power to overcome, and at least at the time of testing, they couldn't overcome the last point with the equipment they had. Unfortunately for them, whatever HPI was doing with their drive train on the Pro4, they could overcome this last sticking point of harmonics and could hit higher top speeds. That's why Hara won all those races vs. the Tc3 and Tc4.
Obviously, this wasn't really an issue with stock or 19t motors. With those cars, it had more to do with the lack of adjustability in roll centers and width, not to mention the Xray and corally cars being really free in the drive train.
Tamiya seems to have taken all of this in. The TB03 is a great car for the money, and overcomes a lot of these shortcomings.
Obviously, this wasn't really an issue with stock or 19t motors. With those cars, it had more to do with the lack of adjustability in roll centers and width, not to mention the Xray and corally cars being really free in the drive train.
Tamiya seems to have taken all of this in. The TB03 is a great car for the money, and overcomes a lot of these shortcomings.
I've been thinking about what those points probably were. I would believe the main point of resonance would be the shaft itself and its orbit off the centerline of the shaft at certain rpm. The upgraded driveshaft for the TB03 uses a captured roll pin design on one end that would help out in that area. Eyeballing a TC3 shaft I have, its about 15mm longer than a TB03's shaft. So shaft length could be a part of the tuning frequency. Also with the power of mod motors I'm sure there was flex involved with the shaft. The gear teeth itself on the diff gears would be another point of resonance. The pitch of the gear teeth, gear mesh tightness, number of teeth etc. would change that. The pinion and spur gear could be another one. With shaft drive, resonance from the motor itself could be transfered here and directly to the drivetrain....versus a belt drive that the resonance would be transfered to a point and then absorbed by the belt.
Wish I had a pro4 to look at really close. Anyway enough rambling
10-08-2009, 04:51 PM
#1363
Thats really interesting what you were saying about the harmonics. Did they happen to say exactly what was causing it on the TC3? Just really curious.
I've been thinking about what those points probably were. I would believe the main point of resonance would be the shaft itself and its orbit off the centerline of the shaft at certain rpm. The upgraded driveshaft for the TB03 uses a captured roll pin design on one end that would help out in that area. Eyeballing a TC3 shaft I have, its about 15mm longer than a TB03's shaft. So shaft length could be a part of the tuning frequency. Also with the power of mod motors I'm sure there was flex involved with the shaft. The gear teeth itself on the diff gears would be another point of resonance. The pitch of the gear teeth, gear mesh tightness, number of teeth etc. would change that. The pinion and spur gear could be another one. With shaft drive, resonance from the motor itself could be transfered here and directly to the drivetrain....versus a belt drive that the resonance would be transfered to a point and then absorbed by the belt.
Wish I had a pro4 to look at really close. Anyway enough rambling
I've been thinking about what those points probably were. I would believe the main point of resonance would be the shaft itself and its orbit off the centerline of the shaft at certain rpm. The upgraded driveshaft for the TB03 uses a captured roll pin design on one end that would help out in that area. Eyeballing a TC3 shaft I have, its about 15mm longer than a TB03's shaft. So shaft length could be a part of the tuning frequency. Also with the power of mod motors I'm sure there was flex involved with the shaft. The gear teeth itself on the diff gears would be another point of resonance. The pitch of the gear teeth, gear mesh tightness, number of teeth etc. would change that. The pinion and spur gear could be another one. With shaft drive, resonance from the motor itself could be transfered here and directly to the drivetrain....versus a belt drive that the resonance would be transfered to a point and then absorbed by the belt.
Wish I had a pro4 to look at really close. Anyway enough rambling
Either way, it probably won't be an issue in 17.5
10-09-2009, 06:05 AM
#1364
Min TB-03D in progress!
10-11-2009, 02:56 AM
#1365
I just installed a Novak Ballistic 3S 8.5T 5000KV brushless system in my TB-03D. It is a little slow at start up and I thought it was suppose to be like that.
I played with my Sprint 2 recently and it has a Orion Orbital 13T Modified Motor and Tazer 12T ESC and I had a blast. Smooth, torque, awesome. A dream to drift/race with.
I read the manuel and it said you must change the pinion gear or I'll have a slow sloppy start and it'll run hotter(Like it does now). It gave some pinion teeth numbers though. Not sure what to choose or where to get it.
I don't have to change the Spur Gear right? What pinion gear for my motor should I get for the TB-03D to optimize it? Where to get it?
Also, after playing with my Sprint 2 I almost went back to brush motors. I am new to Brushless Systems still. The Orion was awesome, I want my TB-03D to have that feeling of torque, smoothness and not running hot. Also my brush has 0 glitches.
Let me hear your thoughts.
I played with my Sprint 2 recently and it has a Orion Orbital 13T Modified Motor and Tazer 12T ESC and I had a blast. Smooth, torque, awesome. A dream to drift/race with.
I read the manuel and it said you must change the pinion gear or I'll have a slow sloppy start and it'll run hotter(Like it does now). It gave some pinion teeth numbers though. Not sure what to choose or where to get it.
I don't have to change the Spur Gear right? What pinion gear for my motor should I get for the TB-03D to optimize it? Where to get it?
Also, after playing with my Sprint 2 I almost went back to brush motors. I am new to Brushless Systems still. The Orion was awesome, I want my TB-03D to have that feeling of torque, smoothness and not running hot. Also my brush has 0 glitches.
Let me hear your thoughts.