Tt-01 Forward Drift

[omegabri]

Hi guys..

I just got a TT-01. Just finished builing it - full race bearing set, ally prop. shaft etc, and sport tuned motor, with elec speed control unit.

It's got a slight drift sideways when it's going forward, which I can't seem to correct with the trim much.

Is it worth going for an adjustable ally steering linkage ? - And will that go straight in ??

Thanks

Bri

[omegabri]

Incase you wondered........I'm new to this - But it's sooo COOL !!!!

Bri..

[Bin ^jammin^]

Hello Bri and welcome.

Is it due to the steering not set up straight or is it the wheels spinning either in the tyres or losing grip?

You can get some veering off if the tyres are not glued or the wear is uneven.

OR your setup is not straight.

Cheers

Ben.

[omegabri]

Hi....

It might have been the tyres. I've just glued them in place and just waiting to put them back on. They look spot on now, so hopefuly it'll do the trick.

How good is the adjustable steering linkage that Tamiya or others do.......for the TT-01 of course !?!?

Thanks for the reply !!

Bri..

[Bin ^jammin^]

The alloy bearing steering set is mustard and takes out a lot of slop, and the adjustable tunbuckle tie rods are vastly superior too.

You can make your own tie rods with some M3 threaded machine screws, just cut the head off and thread on a ball connector on each end, you will need to replace the step screw with a ball for the tie rod to fit on, and now your suspension isn't limited by the steering arms.

[Bin ^jammin^]

Oh and you will also be able to adjust the toe in at the front.

[mb230c]

Hi guys..

I just got a TT-01. Just finished builing it - full race bearing set, ally prop. shaft etc, and sport tuned motor, with elec speed control unit.

It's got a slight drift sideways when it's going forward, which I can't seem to correct with the trim much.

Is it worth going for an adjustable ally steering linkage ? - And will that go straight in ??

Thanks

Bri

My guess would be torque steer. It'll always be 'drift' to one direction (right direction) when accerate hard.

Torque steer is a design issue (of the chassis) and could be reduced with tuning the springs,tires....etc. but cannot be completely eliminated.

[Karmann]

Dont know about R/C but in 1/1 cars torque steer is caused by unequal length driveshafts.

[Wrc action]

karmann - torque steer in Rc cars is due to shaft drive cars and the force of the motor turning the shafts and effectively trying to twist itself around the central shaft. You get less of it with more advanced cars that are stiffer with carbon fibre decks.

But in the TT-01 with stock power I dont think that torque steer is you issue. More likely I say is the arformentioned tyres or the cambre of where u are driving. where i drive there is a constantly changing cambre that you get used to just adjusting as you go with a little steer in or steer out.

You can set a car up to be more relisiant to the cambre changes. the best step is some toe-out on the front wheels making them shape like this \/ which whilst reducing turn in for tight corners does make the car more stable and less likely to follow the cambre as the car would with toe-in /\ style adjusting.

regards

Ryck

[omegabri]

Thanks.

Ive fixed the tyres with glue. I have also ordered a Tamiya Turnbuckle Tie-rod set for the car so I can fine tune it.

Im using a Sport Tuned motor (the Tamiya one..), and also have an ally prop fitted but youre right I dont think its torque steer either it just seems to crab a little when going very slow.even in the house.

Hopefuly fixing the tyres properly and getting the tie-rod set will fix the small problem !!

Bri..

[Wrc action]

Nah a sport tuned motor wont cause torque steer and the turnbuckle set will help greatly.

As for in the house on carpet espically the pile will cause all cars to drift to the side as they follow the pile.

regards Ryck

[terry.sc]

It's got a slight drift sideways when it's going forward, which I can't seem to correct with the trim much.

Is it worth going for an adjustable ally steering linkage ? - And will that go straight in ??

The TT-01 kit has no adjustability built in, so it can only go together one way and runs straight by default. Upgrading the steering will make no difference to the problem, although the alloy steering arms do make a great deal of difference to the precision in the steering.

If it steers slightly you should be able to adjust the small amount needed using the trim on the transmitter. If not, make sure that when the steering trim is in the centre the horn on the servo is pointing straight up. If the servo horn is centred properly then with the servo disconnected try moving the steering and seeing if it is stiff or binding anywhere. If it does, check none of the screws aren't too tight in any of the steering linkage, or the screws holding the pivot balls in the wishbones.

If the car is crabbing then the cause is an axle is binding. Check all the wheels rotate freely. Over tightening the wheel nuts will press the wheel against the upright and cause drag, which will pull the car to one side. You should be able to spin the wheels easily, if not just loosen the wheel nut by 1/4 turn. If it is still stiff check the bearings are seated properly in the uprights, if they aren't square they will cause drag on the axles which again will pull the car to one side.

[omegabri]

Thanks Terry.

Ive been messing around with it and it now seems pretty true !!!!

I fixed the tyres with glue, then checked what you said..All seems to be fine now.

Im gonna put the ally linkage on and adjustable tie-rods anyway.

God, cant you tell Im new to this COOL hobby/sport !!

Bri.

[JT (D1RC)]

Sounds like you've fixed it but if it reoccurs, check the rear toe is the same on both sides (if you have no adjustment, sometimes just slackening off all the rear suspension locating screws and retightening helps). Crabbing is normally caused by unequal toe or, as suggested above, a binding rear drive shaft or even a loose ball diff. If it's turning to one side, problem is usually up front!

[omegabri]

Many thanks !!!

Bri..

[Bin ^jammin^]

Glad it's sorted

[omegabri]

Just got my tie-rod's today.... So when the ally steering set come's I'll be twiddling again - But keeping the same settings !!

Many thanks all......

Bri.

[omegabri]

Hi

Just to let you know, Ive fitted a full GPM ball-raced steering set, and an adjustable tie-rod set to the TT-01and it now pulls a true as die. Its mega once more, now its toed in and balanced correctly.

Thanks for all your tip guys.

Bri..