TXT-1 Hop ups ?

[gunpowder17]

Ive just got a Txt 1.Ive been told hat they are a bit sluggish.Any suggestions for new motors? Also want to know how many people are running it on 2 wheel steering,is the 4 wheel steering better?

Any info appreciated

Cheers

Andrew

[BiggusDitchus]

Regards to motors, I think the txt is a bit sluggish but it has a load of torque... My mate runs a juggernaut with 27 turn rebuildable stocks and it is quite quick so that is what i intend to do with my txt, another thing is to contemplate using 2 nicads, ie. 12 cell.

Regards to steering then it is a matter of personal taste, you have tighter steering with 4 wheel steering but it is more difficult to set up.... ie. getting it going in a straightline without crabbing and it also has the tendancy to want to fall over at speed in turns due to aggressive rate of steering, definately need less steering at rear.

[Muddybaldboy]

id="Arial">Biggus is right, too much speed with 4WS and over they go[]

I'm currently trying a set up which is the same as the full size monster trucks which have independant control of the rear steering so you get the best of both worlds.

The rear servo has its own channel on the throttle stick of my 4 channel tranny. At full pelt (17x2 motors) only use the normal steering stick but for low speed manouvring get the back end steering.

You have to have the trim spot on but it brings a whole new meaning to parallel parking.

[gunpowder17]

I notice that the body leans to the left when driving due to the torque.Can this be stopped?

[BiggusDitchus]

Stiffening the anti roll bar helps, I was also thinking about trying heavier shock oil.

[SJoerD]

quote:Originally posted by gunpowder17

I notice that the body leans to the left when driving due to the torque.Can this be stopped?

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id="quote">id="quote">

The left damper/spring is softer than the right? [)]

[BiggusDitchus]

quote:The left damper/spring is softer than the right?

id="quote">id="quote">

If only it was that simple it is the torque of both motors and the style of suspension that causes it. all cars with longitudinally place motors have this it is just exagerated in txt

[netsmithUK]

I noticed mine does this twisting thing a lot esp. under hard acceleration, but noticed that not everyone elses did at the clumber park drive. Meant to ask at the time but forgot!

[Stu.B]

On full size 4WD's and other solid axle vehicles you have a sway bar to counteract torque centered on the drive shafts. It would be quite easy to make. Just use a bit of springy wire like that used on R/C plane landing gear. It would be like an anti-roll bar but only resisting roll in one direction.

Regarding 12 cells: You can run 12 cells in a TXT no problem at all. Remembar that you can run 2 esc's on a Y split lead. 2 cheap no limit esc's is cheaper than any speed control capable of running 12 cells. The only thing is that when you run 12 cells you get double the chassis twist! You can solve this by getting a Clodbuster and.........

[wldnas]

I have a trick to stop the "Torque Twist" in TXT-1 chassis during accelleration, it's a simple trick to do and whats more dosen't need any additional parts just a slight re-orientation of the existing suspension set up....

Ive found that this Mod is best performed with the front suspension ONLY, you can leave the rear suspension stock except perhaps to add a thickish spacer to each of the springs to stiffen then up a bit.

on the front suspension all you have to do is turn the shock push rod bell cranks upside down... in other words instead of having the long arm facing down, swap it round so its facing up instead, the best way to do this is take the cranks off from both sides and switch them round while turning them upside down at the same time, otherwise you would have to un-screw all the the ball ends and put them in the other side, once you have swapped the cranks over, reconnect the push rods and shocks and you will find that the suspension is much stiffer at the front and it practically eliminates any twist...

the only downside to doing this is that it lowers the ride hight slightly and reduces the suspension travel in equal measure, but its a small price to pay for sorting out the twist problem and it gives the truck a slight agressive "nose down" attitude.

I did it to my truck and it works great.

on the subject of Official Tamiya TXT-1 hop-ups Ive seen some funky light weight chassis side frames in anodised purple and some equally spiffing purple aluminium battery covers, they were being sold on Ebay by one of those Hong-kong MIB merchants so I imagine they are quite new bits out and will take a while to filter over here, he was retailing the Chassis sides at about $55 the pair.

but un-official Hop-ups.... Im planning on fitting 2x15T triples to my TXT-1 with Duel 8.4v 3000Mah Sanyo power, should give the performace a kick up the back side.... or strip the nylon transmission gears.... good thing the kit comes with a spare set

Oh and Ive tried gluing just the rear tires onto the rims, might dumb down that tire slippage syndrome a bit whilst not twisting the teeth off the gears and making it a bit "loose" at the back end